63 research outputs found
Precision measurement of CP violation in the penguin-mediated decay Bs0→ϕϕ
- Author
- Aaij R
- Abdelmotteleb ASW
- Abellan Beteta C
- Abudinén F
- Ackernley T
- Adeva B
- Adinolfi M
- Adlarson P
- Afsharnia H
- Agapopoulou C
- Aidala CA
- Ajaltouni Z
- Akar S
- Akiba K
- Albicocco P
- Albrecht J
- Alessio F
- Alexander M
- Alfonso Albero A
- Aliouche Z
- Alvarez Cartelle P
- Amalric R
- Amato S
- Amey JL
- Amhis Y
- An L
- Anderlini L
- Andersson M
- Andreianov A
- Andreotti M
- Andreou D
- Ao D
- Archilli F
- Artamonov A
- Artuso M
- Aslanides E
- Atzeni M
- Audurier B
- Bachiller Perea IB
- Bachmann S
- Bachmayer M
- Back JJ
- Bailly-Reyre A
- Baladron Rodriguez P
- Balagura V
- Baldini W
- Baptista de Souza Leite J
- Barbetti M
- Barlow RJ
- Barsuk S
- Barter W
- Bartolini M
- Baryshnikov F
- Basels JM
- Bassi G
- Batozskaya V
- Batsukh B
- Battig A
- Bay A
- Beck A
- Becker M
- Bedeschi F
- Bediaga IB
- Beiter A
- Belin S
- Bellee V
- Belous K
- Belov I
- Belyaev I
- Ben-Haim E
- Benane G
- Bencivenni G
- Berezhnoy A
- Bernet Andres S
- Bernet R
- Berninghoff D
- Bernstein HC
- Bertella C
- Bertolin A
- Betancourt C
- Betti F
- Bezshyiko Ia
- Bhom J
- Bian L
- Bieker MS
- Biesuz NV
- Billoir P
- Biolchini A
- Birch M
- Bishop FCR
- Bitadze A
- Bizzeti A
- Blago MP
- Blake T
- Blanc F
- Blank JE
- Blusk S
- Bobulska D
- Bocharnikov VB
- Boelhauve JA
- Boente Garcia O
- Boettcher T
- Boldyrev A
- Bolognani CS
- Bolzonella R
- Bondar N
- Borgato F
- Borghi S
- Borsato M
- Borsuk JT
- Bouchiba SA
- Bowcock TJV
- Boyer A
- Bozzi C
- Bradley MJ
- Braun S
- Brea Rodriguez A
- Breer N
- Brodzicka J
- Brossa Gonzalo A
- Brown J
- Brundu D
- Buonaura A
- Buonincontri L
- Burke AT
- Burr C
- Bursche A
- Butkevich A
- Butter JS
- Buytaert J
- Byczynski W
- Cadeddu S
- Cai H
- Calabrese R
- Calefice L
- Cali S
- Calvi M
- Calvo Gomez M
- Campana P
- Campora Perez DH
- Campoverde Quezada AF
- Capelli S
- Capriotti L
- Carbone A
- Cardinale R
- Cardini A
- Carniti P
- Carus L
- Casais Vidal A
- Caspary R
- Casse G
- Cattaneo M
- Cavallero G
- Cavallini V
- Celani S
- Cerasoli J
- Cervenkov D
- Chadwick AJ
- Chahrour IC
- Chapman MG
- Charles M
- Charpentier Ph
- Chavez Barajas CA
- Chefdeville M
- Chen C
- Chen S
- Chernov A
- Chernyshenko S
- Chobanova V
- Cholak S
- Chrzaszcz M
- Chubykin A
- Chulikov V
- Ciambrone P
- Cicala MF
- Cid Vidal X
- Ciezarek G
- Cifra P
- Clarke PEL
- Clemencic M
- Cliff HV
- Closier J
- Cobbledick JL
- Coco V
- Cogan J
- Cogneras E
- Cojocariu L
- Collins P
- Colombo T
- Congedo L
- Contu A
- Cooke N
- Corredoira I
- Corti G
- Couturier B
- Craik DC
- Cruz Torres M
- Currie R
- D'Ambrosio C
- d'Argent P
- Da Silva CL
- Dadabaev S
- Dai L
- Dai X
- Dall'Occo E
- Dalseno J
- Daniel J
- Danilina A
- Davies JE
- Davis A
- De Aguiar Francisco O
- de Boer J
- De Bruyn K
- De Capua S
- De Cian M
- De Freitas Carneiro Da Graca U
- De Lucia E
- De Miranda JM
- De Paula L
- De Serio M
- De Simone D
- De Simone P
- De Vellis F
- de Vries JA
- Dean CT
- Debernardis F
- Decamp D
- Dedu V
- Del Buono L
- Delaney B
- Dembinski H-P
- Denysenko V
- Deschamps O
- Dettori F
- Dey B
- Di Nezza P
- Diachkov I
- Didenko S
- Dieste Maronas L
- Ding S
- Dobishuk V
- Dolmatov A
- Dong C
- Donohoe AM
- Dordei F
- Dos Reis AC
- Douglas L
- Downes AG
- Duda P
- Dudek MW
- Dufour L
- Duk V
- Durante P
- Duras MM
- Durham JM
- Dutta D
- Dziurda A
- Dzyuba A
- Easo S
- Egede U
- Egorychev A
- Egorychev V
- Eirea Orro C
- Eisenhardt S
- Ejopu E
- Ek-In S
- Eklund L
- Elashri ME
- Ellbracht J
- Ely S
- Ene A
- Epple E
- Escher S
- Eschle J
- Esen S
- Evans T
- Fabiano F
- Falcao LN
- Fan Y
- Fang B
- Fantini L
- Faria M
- Farry S
- Fazzini D
- Felkowski LF
- Feo M
- Fernandez Gomez M
- Fernez AD
- Ferrari F
- Ferreira Lopes L
- Ferreira Rodrigues F
- Ferreres Sole S
- Ferrillo M
- Ferro-Luzzi M
- Filippov S
- Fini RA
- Fiorini M
- Firlej M
- Fischer KM
- Fitzgerald DS
- Fitzpatrick C
- Fiutowski T
- Fleuret F
- Fontana M
- Fontanelli F
- Forty R
- Foulds-Holt D
- Franco Lima V
- Franco Sevilla M
- Frank M
- Franzoso E
- Frau G
- Frei C
- Friday DA
- Frontini LF
- Fu J
- Fuehring Q
- Fulghesu T
- Gabriel E
- Galati G
- Galati MD
- Gallas Torreira A
- Galli D
- Gambetta S
- Gandelman M
- Gandini P
- Gao HG
- Gao R
- Gao Y
- Gao Y
- Garau M
- Garcia Martin LM
- Garcia Moreno P
- Garcia Plana B
- Garcia Rosales FA
- García Pardiñas J
- Garrido L
- Gaspar C
- Geertsema RE
- Gerick D
- Gerken LL
- Gersabeck E
- Gersabeck M
- Gershon T
- Giambastiani L
- Gibson V
- Giemza HK
- Gilman AL
- Giovannetti M
- Gioventù A
- Gironella Gironell P
- Giugliano C
- Giza MA
- Gizdov K
- Gkougkousis EL
- Gligorov VV
- Golobardes E
- Golubkov D
- Golutvin A
- Gomes A
- Gomez Fernandez S
- Goncalves Abrantes F
- Goncerz M
- Gong G
- Gorelov IV
- Gotti C
- Grabowski JP
- Grammatico T
- Granado Cardoso LA
- Graugés E
- Graverini E
- Graziani G
- Grecu AT
- Greeven LM
- Grieser NA
- Grillo L
- Gromov S
- Gu C
- Guarise M
- Guittiere M
- Guliaeva V
- Guseinov AK
- Gushchin E
- Guz Y
- Gys T
- Göbel C
- Günther PA
- Hadavizadeh T
- Hadjivasiliou C
- Haefeli G
- Haen C
- Haimberger J
- Haines SC
- Halewood-Leagas T
- Halvorsen MM
- Hamilton PM
- Hammerich J
- Han Q
- Han X
- Hansmann-Menzemer S
- Hao L
- Harnew N
- Harrison T
- Hasse C
- Hatch M
- He J
- Heijhoff K
- Hemmer FH
- Henderson C
- Henderson RDL
- Hennequin AM
- Hennessy K
- Henry L
- Herd JH
- Heuel J
- Hicheur A
- Hill D
- Hilton M
- Hollitt SE
- Horswill J
- Hou R
- Hou Y
- Hu J
- Hu J
- Hu W
- Hu X
- Huang W
- Huang X
- Hulsbergen W
- Hunter RJ
- Hushchyn M
- Hutchcroft D
- Ibis P
- Idzik M
- Ilin D
- Ilten P
- Inglessi A
- Iniukhin A
- Ishteev A
- Ivshin K
- Jacobsson R
- Jage H
- Jaimes Elles SJ
- Jakobsen S
- Jans E
- Jashal BK
- Jawahery A
- Jevtic V
- Jiang E
- Jiang X
- Jiang Y
- John M
- Johnson D
- Jones CR
- Jones TP
- Joshi SJ
- Jost B
- Jurik N
- Juszczak I
- Kandybei S
- Kang Y
- Karacson M
- Karpenkov D
- Karpov M
- Kautz JW
- Keizer F
- Keller DM
- Kenzie M
- Ketel T
- Khanji B
- Kharisova A
- Kholodenko S
- Khreich G
- Kirn T
- Kirsebom VS
- Kitouni O
- Klaver S
- Kleijne N
- Klimaszewski K
- Kmiec MR
- Koliiev S
- Kolk L
- Kondybayeva A
- Konoplyannikov A
- Kopciewicz P
- Kopecna R
- Koppenburg P
- Korolev M
- Kostiuk I
- Kot O
- Kotriakhova S
- Kozachuk A
- Kravchenko P
- Kravchuk L
- Kreps M
- Kretzschmar S
- Krokovny P
- Krupa W
- Krzemien W
- Kubat J
- Kubis S
- Kucewicz W
- Kucharczyk M
- Kudryavtsev V
- Kulikova EK
- Kupsc A
- Lacarrere D
- Lafferty G
- Lai A
- Lampis A
- Lancierini D
- Landesa Gomez C
- Lane JJ
- Lane R
- Langenbruch C
- Langer J
- Lantwin O
- Latham T
- Lazzari F
- Lazzeroni C
- Le Gac R
- Lee SH
- Leflat A
- Lefèvre R
- Legotin S
- Leroy O
- Lesiak T
- Leverington B
- LHCb Collaboration
- Li A
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- Li T
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- Li Z
- Liang X
- Lin C
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- Lindner R
- Lisovskyi V
- Litvinov R
- Liu G
- Liu H
- Liu K
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- Lobo Salvia A
- Loi A
- Lollini R
- Lomba Castro J
- Longstaff I
- Lopes JH
- Lopez Huertas A
- Lovell GH
- Lu Y
- Lucarelli C
- Lucchesi D
- Luchuk S
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- Lyu X-R
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- Maisuzenko D
- Majewski MW
- Malczewski JJ
- Malde S
- Malecki B
- Malinin A
- Maltsev T
- Manca G
- Mancinelli G
- Mancuso C
- Manera Escalero R
- Manuzzi D
- Manzari CA
- Marangotto D
- Maratas JM
- Marchand JF
- Marconi U
- Mariani S
- Marin Benito C
- Marks J
- Marshall AM
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- Martelli G
- Martellotti G
- Martinazzoli L
- Martinelli M
- Martinez Santos D
- Martinez Vidal F
- Massafferri A
- Materok M
- Matev R
- Mathad A
- Matiunin V
- Matteuzzi C
- Mattioli KR
- Mauri A
- Maurice E
- Mauricio J
- Mazurek M
- McCann M
- Mcconnell L
- McGrath TH
- McHugh NT
- McNab A
- McNulty R
- Meadows B
- Meier G
- Melnychuk D
- Meloni S
- Merk M
- Merli A
- Meyer Garcia L
- Miao D
- Miao H
- Mikhasenko M
- Milanes DA
- Milovanovic M
- Minard M-N
- Minotti A
- Minucci E
- Miralles T
- Mitchell SE
- Mitreska B
- Mitzel DS
- Modak A
- Mohammed RA
- Moise RD
- Mokhnenko S
- Mombächer T
- Monk M
- Monroy IA
- Monteil S
- Morello G
- Morello MJ
- Morgenthaler MP
- Moron J
- Morris AB
- Morris AG
- Mountain R
- Mu H
- Muhammad E
- Muheim F
- Mulder M
- Murray D
- Murta R
- Muzzetto P
- Mödden A
- Müller K
- Naik P
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- Nandakumar R
- Nanut T
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- Needham M
- Neri N
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- Neustroev P
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- Nicolini J
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- Oeser T
- Okamura S
- Oldeman R
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- Otalora Goicochea JM
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- Owen P
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- Ozcelik O
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- Palutan M
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- Parker W
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- Pastore A
- Patel M
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- Pawley CJ
- Pellegrino A
- Pepe Altarelli M
- Perazzini S
- Pereima D
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- Polycarpo E
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- Puill V
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- Qi HR
- Qian W
- Qin N
- Qu S
- Quagliani R
- Raab NV
- Rachwal B
- Rademacker JH
- Rajagopalan R
- Rama M
- Ramos Pernas M
- Rangel MS
- Ratnikov F
- Raven G
- Rebollo De Miguel M
- Redi F
- Reich J
- Reiss F
- Ren Z
- Resmi PK
- Ribatti R
- Ricci AM
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- Richardson-Slipper M
- Rinnert K
- Robbe P
- Robertson G
- Rodrigues E
- Rodriguez Fernandez E
- Rodriguez Lopez JA
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- Rollings A
- Roloff P
- Romanovskiy V
- Romero Lamas M
- Romero Vidal A
- Rotondo M
- Rudolph MS
- Ruf T
- Ruiz Fernandez RA
- Ruiz Vidal J
- Ryzhikov A
- Ryzka J
- Saborido Silva JJ
- Sagidova N
- Sahoo N
- Saitta B
- Salomoni M
- Sanchez Gras C
- Sanderswood I
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- Santamarina Rios C
- Santimaria M
- Santoro L
- Santovetti E
- Saranin D
- Sarpis G
- Sarpis M
- Sarti A
- Satriano C
- Satta A
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- Savrina D
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- Scantlebury Smead LG
- Scarabotto A
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- Sciuccati A
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- Seuthe A
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- Shangase DM
- Shapkin M
- Shchemerov I
- Shchutska L
- Shears T
- Shekhtman L
- Shen Z
- Sheng S
- Shevchenko V
- Shi B
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- Shimizu Y
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- Shupperd JD
- Siddi BG
- Silva Coutinho R
- Simi G
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- Singla M
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- Skwarnicki T
- Slater MW
- Smallwood JC
- Smeaton JG
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- Smith M
- Snoch A
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- Sokoloff MD
- Soler FJP
- Solomin A
- Solovev A
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- Song R
- Souza De Almeida FL
- Souza De Paula B
- Spadaro Norella E
- Spedicato E
- Speer JG
- Spiridenkov E
- Spradlin P
- Sriskaran V
- Stagni F
- Stahl M
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- Stanislaus S
- Stein EN
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- Stenyakin O
- Stevens H
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- Su YS
- Suljik F
- Sun J
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- Swallow PN
- Swientek K
- Szabelski A
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- Thompson DJD
- Tilquin H
- Tisserand V
- Tobin M
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- Tonani G
- Tong X
- Torres Machado D
- Toscano L
- Tou DY
- Trippl C
- Tuci G
- Tuning N
- Ukleja A
- Unverzagt DJ
- Usachov A
- Ustyuzhanin A
- Uwer U
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- Valassi A
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- Van Dijk M
- Van Hecke H
- van Herwijnen E
- Van Hulse CB
- van Veghel M
- Vazquez Gomez R
- Vazquez Regueiro P
- Vecchi S
- Velthuis JJ
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- Venkateswaran A
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- Vieira D
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- Villa A
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- Vázquez Sierra C
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- Walton EJ
- Wan G
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- Wang G
- Wang J
- Wang J
- Wang J
- Wang J
- Wang M
- Wang R
- Wang X
- Wang Y
- Wang Z
- Wang Z
- Wang Z
- Ward JA
- Watson NK
- Websdale D
- Wei Y
- Westhenry BDC
- White DJ
- Whitehead M
- Wiederhold AR
- Wiedner D
- Wilkinson G
- Wilkinson MK
- Williams I
- Williams M
- Williams MRJ
- Williams R
- Wilson FF
- Wislicki W
- Witek M
- Witola L
- Wong CP
- Wormser G
- Wotton SA
- Wu H
- Wu J
- Wu Y
- Wyllie K
- Xiang Z
- Xie Y
- Xu A
- Xu J
- Xu L
- Xu L
- Xu M
- Xu Q
- Xu Z
- Xu Z
- Xu Z
- Yang D
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- Yang X
- Yang Y
- Yang Z
- Yang Z
- Yeroshenko V
- Yeung H
- Yin H
- Yu J
- Yuan X
- Zaffaroni E
- Zavertyaev M
- Zdybal M
- Zeng M
- Zhang C
- Zhang D
- Zhang JZ
- Zhang L
- Zhang S
- Zhang S
- Zhang Y
- Zhang Y
- Zhao Y
- Zharkova A
- Zhelezov A
- Zheng Y
- Zhou T
- Zhou X
- Zhou Y
- Zhovkovska V
- Zhu X
- Zhu X
- Zhu Z
- Zhukov V
- Zhuo J
- Zou Q
- Zucchelli S
- Zuliani D
- Zunica G
- Publication venue
- Publication date
- 01/01/2023
- Field of study
A flavor-tagged time-dependent angular analysis of the decay
Bs0→ϕϕ is performed using pp collision data collected
by the LHCb experiment at % at s=13 TeV, the center-of-mass energy of
13 TeV, corresponding to an integrated luminosity of 6 fb^{-1}. The
CP-violating phase and direct CP-violation parameter are measured
to be ϕssˉs=−0.042±0.075±0.009 rad and
∣λ∣=1.004±0.030±0.009, respectively, assuming the same values
for all polarization states of the ϕϕ system. In these results, the
first uncertainties are statistical and the second systematic. These parameters
are also determined separately for each polarization state, showing no evidence
for polarization dependence. The results are combined with previous LHCb
measurements using pp collisions at center-of-mass energies of 7 and 8 TeV,
yielding ϕssˉs=−0.074±0.069 rad and ∣lambda∣=1.009±0.030. This is the most precise study of time-dependent CP violation
in a penguin-dominated B meson decay. The results are consistent with
CP symmetry and with the Standard Model predictions.Comment: All figures and tables, along with any supplementary material and
additional information, are available at
https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2023-001.html (LHCb
public pages
Test of lepton universality in b→sℓ+ℓ− decays
- Author
- Aaij R
- Abdelmotteleb ASW
- Abellan Beteta C
- Abudinén F
- Ackernley T
- Adeva B
- Adinolfi M
- Adlarson P
- Afsharnia H
- Agapopoulou C
- Aidala CA
- Ajaltouni Z
- Akar S
- Akiba K
- Albicocco P
- Albrecht J
- Alessio F
- Alexander M
- Alfonso Albero A
- Aliouche Z
- Alvarez Cartelle P
- Amalric R
- Amato S
- Amey JL
- Amhis Y
- An L
- Anderlini L
- Andersson M
- Andreianov A
- Andreotti M
- Andreou D
- Ao D
- Archilli F
- Artamonov A
- Artuso M
- Aslanides E
- Atzeni M
- Audurier B
- Bachiller Perea I
- Bachmann S
- Bachmayer M
- Back JJ
- Bailly-Reyre A
- Baladron Rodriguez P
- Balagura V
- Baldini W
- Baptista de Souza Leite J
- Barbetti M
- Barlow RJ
- Barsuk S
- Barter W
- Bartolini M
- Baryshnikov F
- Basels JM
- Bassi G
- Batsukh B
- Battig A
- Bay A
- Beck A
- Becker M
- Bedeschi F
- Bediaga IB
- Beiter A
- Belin S
- Bellee V
- Belous K
- Belov I
- Belyaev I
- Ben-Haim E
- Benane G
- Bencivenni G
- Berezhnoy A
- Bernet Andres S
- Bernet R
- Berninghoff D
- Bernstein HC
- Bertella C
- Bertolin A
- Betancourt C
- Betti F
- Bezshyiko Ia
- Bhom J
- Bian L
- Bieker MS
- Biesuz NV
- Bifani S
- Billoir P
- Biolchini A
- Birch M
- Bishop FCR
- Bitadze A
- Bizzeti A
- Blago MP
- Blake T
- Blanc F
- Blank JE
- Blusk S
- Bobulska D
- Boelhauve JA
- Boente Garcia O
- Boettcher T
- Boldyrev A
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- Zhelezov A
- Zheng Y
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- Zunica G
- Publication venue
- Publication date
- 18/12/2022
- Field of study
The first simultaneous test of muon-electron universality using
B+→K+ℓ+ℓ− and B0→K∗0ℓ+ℓ− decays is performed, in two ranges of the dilepton
invariant-mass squared, q2. The analysis uses beauty mesons produced in
proton-proton collisions collected with the LHCb detector between 2011 and
2018, corresponding to an integrated luminosity of 9 fb−1. Each
of the four lepton universality measurements reported is either the first in
the given q2 interval or supersedes previous LHCb measurements. The
results are compatible with the predictions of the Standard Model.Comment: All figures and tables, along with any supplementary material and
additional information, are available at
https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2022-046.html (LHCb
public pages
First observation of a doubly charged tetraquark and its neutral partner
- Author
- Aaij R
- Abdelmotteleb ASW
- Abellan Beteta C
- Abudinén F
- Ackernley T
- Adeva B
- Adinolfi M
- Adlarson P
- Afsharnia H
- Agapopoulou C
- Aidala CA
- Aiola S
- Ajaltouni Z
- Akar S
- Akiba K
- Albrecht J
- Alessio F
- Alexander M
- Alfonso Albero A
- Aliouche Z
- Alvarez Cartelle P
- Amalric R
- Amato S
- Amey JL
- Amhis Y
- An L
- Anderlini L
- Andersson M
- Andreianov A
- Andreotti M
- Andreou D
- Ao D
- Archilli F
- Artamonov A
- Artuso M
- Aslanides E
- Atzeni M
- Audurier B
- Bachmann S
- Bachmayer M
- Back JJ
- Bailly-Reyre A
- Baladron Rodriguez P
- Balagura V
- Baldini W
- Baptista de Souza Leite J
- Barbetti M
- Barlow RJ
- Barsuk S
- Barter W
- Bartolini M
- Baryshnikov F
- Basels JM
- Bassi G
- Batsukh B
- Battig A
- Bay A
- Beck A
- Becker M
- Bedeschi F
- Bediaga IB
- Beiter A
- Belavin V
- Belin S
- Bellee V
- Belous K
- Belov I
- Belyaev I
- Ben-Haim E
- Benane G
- Bencivenni G
- Berezhnoy A
- Bernet Andres S
- Bernet R
- Berninghoff D
- Bernstein HC
- Bertella C
- Bertolin A
- Betancourt C
- Betti F
- Bezshyiko Ia
- Bhasin S
- Bhom J
- Bian L
- Bieker MS
- Biesuz NV
- Bifani S
- Billoir P
- Biolchini A
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- Bishop FCR
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- Blank JE
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- Bobulska D
- Boelhauve JA
- Boente Garcia O
- Boettcher T
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- Bolognani CS
- Bolzonella R
- Bondar N
- Borgato F
- Borghi S
- Borsato M
- Borsuk JT
- Bouchiba SA
- Bowcock TJV
- Boyer A
- Bozzi C
- Bradley MJ
- Braun S
- Brea Rodriguez A
- Brodzicka J
- Brossa Gonzalo A
- Brown J
- Brundu D
- Buonaura A
- Buonincontri L
- Burke AT
- Burr C
- Bursche A
- Butkevich A
- Butter JS
- Buytaert J
- Byczynski W
- Cadeddu S
- Cai H
- Calabrese R
- Calefice L
- Cali S
- Calladine R
- Calvi M
- Calvo Gomez M
- Campana P
- Campora Perez DH
- Campoverde Quezada AF
- Capelli S
- Capriotti L
- Carbone A
- Carboni G
- Cardinale R
- Cardini A
- Carniti P
- Carus L
- Casais Vidal A
- Caspary R
- Casse G
- Cattaneo M
- Cavallero G
- Cavallini V
- Celani S
- Cerasoli J
- Cervenkov D
- Chadwick AJ
- Chapman MG
- Charles M
- Charpentier Ph
- Chavez Barajas CA
- Chefdeville M
- Chen C
- Chen S
- Chernov A
- Chernyshenko S
- Chobanova V
- Cholak S
- Chrzaszcz M
- Chubykin A
- Chulikov V
- Ciambrone P
- Cicala MF
- Cid Vidal X
- Ciezarek G
- Ciullo G
- Clarke PEL
- Clemencic M
- Cliff HV
- Closier J
- Cobbledick JL
- Coco V
- Coelho JAB
- Cogan J
- Cogneras E
- Cojocariu L
- Collins P
- Colombo T
- Congedo L
- Contu A
- Cooke N
- Corredoira I
- Corti G
- Couturier B
- Craik DC
- Cruz Torres M
- Currie R
- D'Ambrosio C
- d'Argent P
- Da Silva CL
- Dadabaev S
- Dai L
- Dai X
- Dall'Occo E
- Dalseno J
- Daniel J
- Danilina A
- Davies JE
- Davis A
- De Aguiar Francisco O
- de Boer J
- De Bruyn K
- De Capua S
- De Cian M
- De Freitas Carneiro Da Graca U
- De Lucia E
- De Miranda JM
- De Paula L
- De Serio M
- De Simone D
- De Simone P
- De Vellis F
- de Vries JA
- Dean CT
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- Zhelezov A
- Zheng Y
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- Zhukov V
- Zou Q
- Zucchelli S
- Zuliani D
- Zunica G
- Publication venue
- Publication date
- 01/01/2023
- Field of study
A combined amplitude analysis is performed for the decays B0→D0Ds+π− and B+→D−Ds+π+, which are
related by isospin symmetry. The analysis is based on data collected by the
LHCb detector in proton-proton collisions at center-of-mass energies of 7, 8
and 13TeV. The full data sample corresponds to an integrated
luminosity of 9fb−1. Two new resonant states with masses of
2.908±0.011±0.020GeV and widths of
0.136±0.023±0.011GeV are observed, which decay to Ds+π+ and
Ds+π− respectively. The former state indicates the first observation of
a doubly charged open-charm tetraquark state with minimal quark content
[csˉudˉ], and the latter state is a neutral tetraquark composed of
[csˉuˉd] quarks. Both states are found to have spin-parity 0+,
and their resonant parameters are consistent with each other, which suggests
that they belong to an isospin triplet.Comment: All figures and tables, along with any supplementary material and
additional information, are available at
https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2022-026.html (LHCb
public pages
Observation of a resonant structure near the Ds+Ds− threshold in the B+→Ds+Ds−K+ decay
- Author
- Aaij R
- Abdelmotteleb ASW
- Abellan Beteta C
- Abudinén F
- Ackernley T
- Adeva B
- Adinolfi M
- Afsharnia H
- Agapopoulou C
- Aidala CA
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- Akiba K
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- Alessio F
- Alexander M
- Alfonso Albero A
- Aliouche Z
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- Artamonov A
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- Baladron Rodriguez P
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- Baptista de Souza Leite J
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- Barlow RJ
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- Delaney B
- Dembinski H-P
- Denysenko V
- Deschamps O
- Dettori F
- Dey B
- Di Cicco A
- Di Nezza P
- Diachkov I
- Didenko S
- Dieste Maronas L
- Ding S
- Dobishuk V
- Dolmatov A
- Dong C
- Donohoe AM
- Dordei F
- Dos Reis AC
- Douglas L
- Downes AG
- Dudek MW
- Dufour L
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- Durante P
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- Dutta D
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- Dzyuba A
- Easo S
- Egede U
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- Eidelman S
- Eirea Orro C
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- Epple E
- Escher S
- Eschle J
- Esen S
- Evans T
- Fabiano F
- Falcao LN
- Fan Y
- Fang B
- Farry S
- Fazzini D
- Feo M
- Fernandez Gomez M
- Fernez AD
- Ferrari F
- Ferreira Lopes L
- Ferreira Rodrigues F
- Ferreres Sole S
- Ferrillo M
- Ferro-Luzzi M
- Filippov S
- Fini RA
- Fiorini M
- Firlej M
- Fischer KM
- Fitzgerald DS
- Fitzpatrick C
- Fiutowski T
- Fleuret F
- Fontana M
- Fontanelli F
- Forty R
- Foulds-Holt D
- Franco Lima V
- Franco Sevilla M
- Frank M
- Franzoso E
- Frau G
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- Friday DA
- Fu J
- Fuehring Q
- Fulghesu T
- Gabriel E
- Galati G
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- Gambetta S
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- Garcia Moreno P
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- Zunica G
- Publication venue
- Publication date
- 26/10/2022
- Field of study
An amplitude analysis of the B+→Ds+Ds−K+ decay is carried out to
study for the first time its intermediate resonant contributions, using
proton-proton collision data collected with the LHCb detector at centre-of-mass
energies of 7, 8 and 13 TeV. A near-threshold peaking structure, referred to as
X(3960), is observed in the Ds+Ds− invariant-mass spectrum with
significance greater than 12 standard deviations. The mass, width and the
quantum numbers of the structure are measured to be 3956±5±10 MeV,
43±13±8 MeV and JPC=0++, respectively, where the first
uncertainties are statistical and the second systematic. The properties of the
new structure are consistent with recent theoretical predictions for a state
composed of ccˉssˉ quarks. Evidence for an additional structure is
found around 4140 MeV in the Ds+Ds− invariant mass, which might be
caused either by a new resonance with the 0++ assignment or by a J/ψϕ↔Ds+Ds− coupled-channel effect.Comment: All figures and tables, along with any supplementary material and
additional information, are available at
https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2022-018.html (LHCb
public pages
Measurement of the Λb0→Λ(1520)μ+μ− differential branching fraction
- Author
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- Graugés E
- Graverini E
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- Greeven LM
- Grieser NA
- Grillo L
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- Gruberg Cazon BR
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- Gushchin E
- Guth A
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- Göbel C
- Günther PA
- Hadavizadeh T
- Hadjivasiliou C
- Haefeli G
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- Haimberger J
- Haines SC
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- Hasse C
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- He J
- Heijhoff K
- Hemmer F
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- Henderson RDL
- Hennequin AM
- Hennessy K
- Henry L
- Herd J
- Heuel J
- Hicheur A
- Hill D
- Hilton M
- Hollitt SE
- Horswill J
- Hou R
- Hou Y
- Hu J
- Hu J
- Hu W
- Hu X
- Huang W
- Huang X
- Hulsbergen W
- Hunter RJ
- Hushchyn M
- Hutchcroft D
- Ibis P
- Idzik M
- Ilin D
- Ilten P
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- Publication venue
- Publication date
- 01/01/2023
- Field of study
The branching fraction of the rare decay Λb0→Λ(1520)μ+μ− is measured for the first time, in the squared dimuon mass
intervals, q2, excluding the J/ψ and ψ(2S) regions. The data
sample analyzed was collected by the LHCb experiment at center-of-mass energies
of 7, 8, and 13 TeV, corresponding to a total integrated luminosity of $9\
\mathrm{fb}^{-1}.Theresultinthehighestq^{2}interval,q^{2} >15.0\
\mathrm{GeV}^2/c^4$, where theoretical predictions have the smallest model
dependence, agrees with the predictions.Comment: All figures and tables, along with any supplementary material and
additional information, are available at
https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2022-050.html (LHCb
public pages
Precision measurement of CP violation in the penguin-mediated decay Bs0→ϕϕ
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- Jage H
- Jaimes Elles SJ
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- Juszczak I
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- LHCb Collaboration
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- Li P
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- Liang X
- Lin C
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- Wislicki W
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- Witola L
- Wong CP
- Wormser G
- Wotton SA
- Wu H
- Wu J
- Wu Y
- Wyllie K
- Xiang Z
- Xie Y
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- Xu L
- Xu M
- Xu Q
- Xu Z
- Xu Z
- Xu Z
- Yang D
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- Yang X
- Yang Y
- Yang Z
- Yang Z
- Yeroshenko V
- Yeung H
- Yin H
- Yu J
- Yuan X
- Zaffaroni E
- Zavertyaev M
- Zdybal M
- Zeng M
- Zhang C
- Zhang D
- Zhang JZ
- Zhang L
- Zhang S
- Zhang S
- Zhang Y
- Zhang Y
- Zhao Y
- Zharkova A
- Zhelezov A
- Zheng Y
- Zhou T
- Zhou X
- Zhou Y
- Zhovkovska V
- Zhu X
- Zhu X
- Zhu Z
- Zhukov V
- Zhuo J
- Zou Q
- Zucchelli S
- Zuliani D
- Zunica G
- Publication venue
- American Physical Society
- Publication date
- 01/10/2023
- Field of study
A flavor-tagged time-dependent angular analysis of the decay
B
0
s
→
ϕ
ϕ
is performed using
p
p
collision data collected by the LHCb experiment at the center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of
6
fb
−
1
. The
C
P
-violating phase and direct
C
P
-violation parameter are measured to be
ϕ
s
¯
s
s
s
=
−
0.042
±
0.075
±
0.009
rad
and
|
λ
|
=
1.004
±
0.030
±
0.009
, respectively, assuming the same values for all polarization states of the
ϕ
ϕ
system. In these results, the first uncertainties are statistical and the second systematic. These parameters are also determined separately for each polarization state, showing no evidence for polarization dependence. The results are combined with previous LHCb measurements using
p
p
collisions at center-of-mass energies of 7 and 8 TeV, yielding
ϕ
s
¯
s
s
s
=
−
0.074
±
0.069
rad
and
|
λ
|
=
1.009
±
0.030
. This is the most precise study of time-dependent
C
P
violation in a penguin-dominated
B
meson decay. The results are consistent with
C
P
symmetry and with the standard model predictions
Search for rare decays of D0 mesons into two muons
- Author
- Aaij R
- Abdelmotteleb ASW
- Abellan Beteta C
- Abudinén F
- Ackernley T
- Adeva B
- Adinolfi M
- Adlarson P
- Afsharnia H
- Agapopoulou C
- Aidala CA
- Aiola S
- Ajaltouni Z
- Akar S
- Akiba K
- Albrecht J
- Alessio F
- Alexander M
- Alfonso Albero A
- Aliouche Z
- Alvarez Cartelle P
- Amalric R
- Amato S
- Amey JL
- Amhis Y
- An L
- Anderlini L
- Andersson M
- Andreianov A
- Andreotti M
- Andreou D
- Ao D
- Archilli F
- Artamonov A
- Artuso M
- Aslanides E
- Atzeni M
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- Bachmayer M
- Back JJ
- Bailly-Reyre A
- Baladron Rodriguez P
- Balagura V
- Baldini W
- Baptista de Souza Leite J
- Barbetti M
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- Barter W
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- Baryshnikov F
- Basels JM
- Bassi G
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- Bedeschi F
- Bediaga IB
- Beiter A
- Belavin V
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- Belov I
- Belyaev I
- Ben-Haim E
- Benane G
- Bencivenni G
- Berezhnoy A
- Bernet Andres S
- Bernet R
- Berninghoff D
- Bernstein HC
- Bertella C
- Bertolin A
- Betancourt C
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- Bezshyiko Ia
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- Bian L
- Bieker MS
- Biesuz NV
- Bifani S
- Billoir P
- Biolchini A
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- Bishop FCR
- Bitadze A
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- Blank JE
- Blusk S
- Bobulska D
- Boelhauve JA
- Boente Garcia O
- Boettcher T
- Boldyrev A
- Bolognani CS
- Bolzonella R
- Bondar N
- Borgato F
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- Borsato M
- Borsuk JT
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- Bowcock TJV
- Boyer A
- Bozzi C
- Bradley MJ
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- Brea Rodriguez A
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- Calvi M
- Calvo Gomez M
- Campana P
- Campora Perez DH
- Campoverde Quezada AF
- Capelli S
- Capriotti L
- Carbone A
- Carboni G
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- Cardini A
- Carniti P
- Carus L
- Casais Vidal A
- Caspary R
- Casse G
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- Chavez Barajas CA
- Chefdeville M
- Chen C
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- Chernov A
- Chernyshenko S
- Chobanova V
- Cholak S
- Chrzaszcz M
- Chubykin A
- Chulikov V
- Ciambrone P
- Cicala MF
- Cid Vidal X
- Ciezarek G
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- Cobbledick JL
- Coco V
- Coelho JAB
- Cogan J
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- Cojocariu L
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- Congedo L
- Contu A
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- Corredoira I
- Corti G
- Couturier B
- Craik DC
- Cruz Torres M
- Currie R
- D'Ambrosio C
- d'Argent P
- Da Silva CL
- Dadabaev S
- Dai L
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- Dall'Occo E
- Dalseno J
- Daniel J
- Danilina A
- Davies JE
- Davis A
- De Aguiar Francisco O
- de Boer J
- De Bruyn K
- De Capua S
- De Cian M
- De Freitas Carneiro Da Graca U
- De Lucia E
- De Miranda JM
- De Paula L
- De Serio M
- De Simone D
- De Simone P
- De Vellis F
- de Vries JA
- Dean CT
- Debernardis F
- Decamp D
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- Denysenko V
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- Di Nezza P
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- Dutta D
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- Egorychev V
- Eidelman S
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- Eisenhardt S
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- Fernez AD
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- Ferrillo M
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- Filippov S
- Fini RA
- Fiorini M
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- Fischer KM
- Fitzgerald DS
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- Fleuret F
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- Galati MD
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- Gan Y
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- Garau M
- Garcia Martin LM
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- Garcia Plana B
- Garcia Rosales FA
- García Pardiñas J
- Garrido L
- Gaspar C
- Geertsema RE
- Gerick D
- Gerken LL
- Gersabeck E
- Gersabeck M
- Gershon T
- Giambastiani L
- Gibson V
- Giemza HK
- Gilman AL
- Giovannetti M
- Gioventù A
- Gironella Gironell P
- Giugliano C
- Giza MA
- Gizdov K
- Gkougkousis EL
- Gligorov VV
- Golobardes E
- Golubkov D
- Golutvin A
- Gomes A
- Gomez Fernandez S
- Goncalves Abrantes F
- Goncerz M
- Gong G
- Gorelov IV
- Gotti C
- Grabowski JP
- Grammatico T
- Granado Cardoso LA
- Graugés E
- Graverini E
- Graziani G
- Grecu AT
- Greeven LM
- Grieser NA
- Grillo L
- Gromov S
- Gruberg Cazon BR
- Gu C
- Guarise M
- Guittiere M
- Gushchin E
- Guth A
- Guz Y
- Gys T
- Göbel C
- Günther PA
- Hadavizadeh T
- Hadjivasiliou C
- Haefeli G
- Haen C
- Haimberger J
- Haines SC
- Halewood-Leagas T
- Halvorsen MM
- Hamilton PM
- Hammerich J
- Han Q
- Han X
- Hansen EB
- Hansmann-Menzemer S
- Hao L
- Harnew N
- Harrison T
- Hasse C
- Hatch M
- He J
- Heijhoff K
- Henderson C
- Henderson RDL
- Hennequin AM
- Hennessy K
- Henry L
- Herd J
- Heuel J
- Hicheur A
- Hill D
- Hilton M
- Hollitt SE
- Horswill J
- Hou R
- Hou Y
- Hu J
- Hu J
- Hu W
- Hu X
- Huang W
- Huang X
- Hulsbergen W
- Hunter RJ
- Hushchyn M
- Hutchcroft D
- Ibis P
- Idzik M
- Ilin D
- Ilten P
- Inglessi A
- Iniukhin A
- Ishteev A
- Ivshin K
- Jacobsson R
- Jage H
- Jaimes Elles SJ
- Jakobsen S
- Jans E
- Jashal BK
- Jawahery A
- Jevtic V
- Jiang E
- Jiang X
- Jiang Y
- John M
- Johnson D
- Jones CR
- Jones TP
- Jost B
- Jurik N
- Juszczak I
- Kandybei S
- Kang Y
- Karacson M
- Karpenkov D
- Karpov M
- Kautz JW
- Keizer F
- Keller DM
- Kenzie M
- Ketel T
- Khanji B
- Kharisova A
- Kholodenko S
- Khreich G
- Kirn T
- Kirsebom VS
- Kitouni O
- Klaver S
- Kleijne N
- Klimaszewski K
- Kmiec MR
- Koliiev S
- Kondybayeva A
- Konoplyannikov A
- Kopciewicz P
- Kopecna R
- Koppenburg P
- Korolev M
- Kostiuk I
- Kot O
- Kotriakhova S
- Kozachuk A
- Kravchenko P
- Kravchuk L
- Krawczyk RD
- Kreps M
- Kretzschmar S
- Krokovny P
- Krupa W
- Krzemien W
- Kubat J
- Kubis S
- Kucewicz W
- Kucharczyk M
- Kudryavtsev V
- Kupsc A
- Lacarrere D
- Lafferty G
- Lai A
- Lampis A
- Lancierini D
- Landesa Gomez C
- Lane JJ
- Lane R
- Lanfranchi G
- Langenbruch C
- Langer J
- Lantwin O
- Latham T
- Lazzari F
- Lazzaroni M
- Le Gac R
- Lee SH
- Leflat A
- Lefèvre R
- Legotin S
- Lenisa P
- Leroy O
- Lesiak T
- Leverington B
- LHCb Collaboration
- Li A
- Li H
- Li K
- Li P
- Li P-R
- Li S
- Li T
- Li T
- Li Y
- Li Z
- Liang X
- Lin C
- Lin T
- Lindner R
- Lisovskyi V
- Litvinov R
- Liu G
- Liu H
- Liu Q
- Liu S
- Lobo Salvia A
- Loi A
- Lollini R
- Lomba Castro J
- Longstaff I
- Lopes JH
- Lopez Huertas A
- Lovell GH
- Lu Y
- Lucarelli C
- Lucchesi D
- Luchuk S
- Lucio Martinez M
- Lukashenko V
- Luo Y
- Lupato A
- Luppi E
- Lusiani A
- Lynch K
- Lyu X-R
- López Soliño S
- Ma L
- Ma R
- Maccolini S
- Machefert F
- Maciuc F
- Mackay I
- Macko V
- Mackowiak P
- Madhan Mohan LR
- Maevskiy A
- Maisuzenko D
- Majewski MW
- Malczewski JJ
- Malde S
- Malecki B
- Malinin A
- Maltsev T
- Manca G
- Mancinelli G
- Mancuso C
- Manuzzi D
- Manzari CA
- Marangotto D
- Marchand JF
- Marconi U
- Mariani S
- Marin Benito C
- Marks J
- Marshall AM
- Marshall PJ
- Martelli G
- Martellotti G
- Martinazzoli L
- Martinelli M
- Martinez Santos D
- Martinez Vidal F
- Massafferri A
- Materok M
- Matev R
- Mathad A
- Matiunin V
- Matteuzzi C
- Mattioli KR
- Mauri A
- Maurice E
- Mauricio J
- Mazurek M
- McCann M
- Mcconnell L
- McGrath TH
- McHugh NT
- McNab A
- McNulty R
- Mead JV
- Meadows B
- Meier G
- Melnychuk D
- Meloni S
- Merk M
- Merli A
- Meyer Garcia L
- Miao D
- Mikhasenko M
- Milanes DA
- Millard E
- Milovanovic M
- Minard M-N
- Minotti A
- Miralles T
- Mitchell SE
- Mitreska B
- Mitzel DS
- Mohammed RA
- Moise RD
- Mokhnenko S
- Mombächer T
- Monk M
- Monroy IA
- Monteil S
- Morandin M
- Morello G
- Morello MJ
- Moron J
- Morris AB
- Morris AG
- Mountain R
- Mu H
- Muhammad E
- Muheim F
- Mulder M
- Murphy CH
- Murray D
- Murta R
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- Wu J
- Wyllie K
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- Xiao D
- Xie Y
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- Yeomans LE
- Yeroshenko V
- Yeung H
- Yin H
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- Zaffaroni E
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- Zdybal M
- Zenaiev O
- Zeng M
- Zhang C
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- Zharkova A
- Zhelezov A
- Zheng Y
- Zhou T
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- Zhovkovska V
- Zhu X
- Zhu X
- Zhu Z
- Zhukov V
- Zou Q
- Zucchelli S
- Zuliani D
- Zunica G
- Publication venue
- American Physical Society
- Publication date
- 21/12/2022
- Field of study
A search for the very rare
D
0
→
μ
+
μ
−
decay is performed using data collected by the LHCb experiment in proton-proton collisions at
√
s
=
7
, 8, and 13 TeV, corresponding to an integrated luminosity of
9
fb
−
1
. The search is optimized for
D
0
mesons from
D
*
+
→
D
0
π
+
decays but is also sensitive to
D
0
mesons from other sources. No evidence for an excess of events over the expected background is observed. An upper limit on the branching fraction of this decay is set at
B
(
D
0
→
μ
+
μ
−
)
<
3.1
×
10
−
9
at a 90% C.L. This represents the world’s most stringent limit, constraining models of physics beyond the standard model
Measurement of the ratios of branching fractions R(D*) and R(D0)
- Author
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- Didenko S
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- Gruberg Cazon BR
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- Horswill J
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- Hushchyn M
- Hutchcroft D
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- Juszczak I
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- Kirsebom VS
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- Kondybayeva A
- Konoplyannikov A
- Kopciewicz P
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- LHCb Collaboration
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- Owen P
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- Padeken KO
- Pagare B
- Pais PR
- Pajero T
- Palano A
- Palutan M
- Pan Y
- Panshin G
- Paolucci L
- Papanestis A
- Pappagallo M
- Pappalardo LL
- Pappenheimer C
- Parker W
- Parkes C
- Passalacqua B
- Passaleva G
- Pastore A
- Patel M
- Patrignani C
- Pawley CJ
- Pellegrino A
- Pepe Altarelli M
- Perazzini S
- Pereima D
- Pereiro Castro A
- Perret P
- Petridis K
- Petrolini A
- Petrov A
- Petrucci S
- Petruzzo M
- Pham H
- Philippov A
- Piandani R
- Pica L
- Piccini M
- Pietrzyk B
- Pietrzyk G
- Pili M
- Pinci D
- Pisani F
- Pizzichemi M
- Placinta V
- Plews J
- Plo Casasus M
- Polci F
- Poli Lener M
- Poluektov A
- Polukhina N
- Polyakov I
- Polycarpo E
- Ponce S
- Popov D
- Poslavskii S
- Prasanth K
- Promberger L
- Prouve C
- Pugatch V
- Puill V
- Punzi G
- Qi HR
- Qian W
- Qin N
- Qu S
- Quagliani R
- Raab NV
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- Wormser G
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- Wu H
- Wu J
- Wyllie K
- Xiang Z
- Xie Y
- Xu A
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- Xu L
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- Xu Z
- Yang D
- Yang S
- Yang X
- Yang Y
- Yang Z
- Yang Z
- Yeomans LE
- Yeroshenko V
- Yeung H
- Yin H
- Yu J
- Yuan X
- Zaffaroni E
- Zavertyaev M
- Zdybal M
- Zeng M
- Zhang C
- Zhang D
- Zhang L
- Zhang S
- Zhang S
- Zhang Y
- Zhang Y
- Zhao Y
- Zharkova A
- Zhelezov A
- Zheng Y
- Zhou T
- Zhou X
- Zhou Y
- Zhovkovska V
- Zhu X
- Zhu X
- Zhu Z
- Zhukov V
- Zou Q
- Zucchelli S
- Zuliani D
- Zunica G
- Publication venue
- American Physical Society
- Publication date
- 01/01/2023
- Field of study
The ratios of branching fractions
R
(
D
∗
)
≡
B
(
¯
B
→
D
∗
τ
−
¯
ν
τ
)
/
B
(
¯
B
→
D
∗
μ
−
¯
ν
μ
)
and
R
(
D
0
)
≡
B
(
B
−
→
D
0
τ
−
¯
ν
τ
)
/
B
(
B
−
→
D
0
μ
−
¯
ν
μ
)
are measured, assuming isospin symmetry, using a sample of proton-proton collision data corresponding to
3.0
fb
−
1
of integrated luminosity recorded by the LHCb experiment during 2011 and 2012. The tau lepton is identified in the decay mode
τ
−
→
μ
−
ν
τ
¯
ν
μ
. The measured values are
R
(
D
∗
)
=
0.281
±
0.018
±
0.024
and
R
(
D
0
)
=
0.441
±
0.060
±
0.066
, where the first uncertainty is statistical and the second is systematic. The correlation between these measurements is
ρ
=
−
0.43
. The results are consistent with the current average of these quantities and are at a combined 1.9 standard deviations from the predictions based on lepton flavor universality in the standard model
Test of lepton universality in b→sℓ+ℓ− decays
- Author
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- Ruf T
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- Ruiz Vidal J
- Ryzhikov A
- Ryzka J
- Saborido Silva JJ
- Sagidova N
- Sahoo N
- Saitta B
- Salomoni M
- Sanchez Gras C
- Sanderswood I
- Santacesaria R
- Santamarina Rios C
- Santimaria M
- Santovetti E
- Saranin D
- Sarpis G
- Sarpis M
- Sarti A
- Satriano C
- Satta A
- Saur M
- Savrina D
- Sazak H
- Scantlebury Smead LG
- Scarabotto A
- Schael S
- Scherl S
- Schiller M
- Schindler H
- Schmelling M
- Schmidt B
- Schmitt S
- Schneider O
- Schopper A
- Schubiger M
- Schulte S
- Schune MH
- Schwemmer R
- Sciascia B
- Sciuccati A
- Sellam S
- Semennikov A
- Senghi Soares M
- Sergi A
- Serra N
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- Shapkin M
- Shchemerov I
- Shchutska L
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- Westhenry BDC
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- Wiederhold AR
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- Wislicki W
- Witek M
- Witola L
- Wong CP
- Wormser G
- Wotton SA
- Wu H
- Wu J
- Wyllie K
- Xiang Z
- Xie Y
- Xu A
- Xu J
- Xu L
- Xu L
- Xu M
- Xu Q
- Xu Z
- Xu Z
- Yang D
- Yang S
- Yang X
- Yang Y
- Yang Z
- Yang Z
- Yeomans LE
- Yeroshenko V
- Yeung H
- Yin H
- Yu J
- Yuan X
- Zaffaroni E
- Zavertyaev M
- Zdybal M
- Zeng M
- Zhang C
- Zhang D
- Zhang L
- Zhang S
- Zhang S
- Zhang Y
- Zhang Y
- Zhao Y
- Zharkova A
- Zhelezov A
- Zheng Y
- Zhou T
- Zhou X
- Zhou Y
- Zhovkovska V
- Zhu X
- Zhu X
- Zhu Z
- Zhukov V
- Zou Q
- Zucchelli S
- Zuliani D
- Zunica G
- Publication venue
- American Physical Society
- Publication date
- 20/12/2022
- Field of study
The first simultaneous test of muon-electron universality using
B
+
→
K
+
ℓ
+
ℓ
−
and
B
0
→
K
*
0
ℓ
+
ℓ
−
decays is performed, in two ranges of the dilepton invariant-mass squared,
q
2
. The analysis uses beauty mesons produced in proton-proton collisions collected with the LHCb detector between 2011 and 2018, corresponding to an integrated luminosity of
9
fb
−
1
. Each of the four lepton universality measurements reported is either the first in the given
q
2
interval or supersedes previous LHCb measurements. The results are compatible with the predictions of the Standard Model
Improved measurement of CP violation parameters in Bs0→J/ψK+K− decays in the vicinity of the ϕ(1020) resonance
- Author
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- Abdelmotteleb ASW
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- Serra N
- Sestini L
- Seuthe A
- Shang Y
- Shangase DM
- Shapkin M
- Shchemerov I
- Shchutska L
- Shears T
- Shekhtman L
- Shen Z
- Sheng S
- Shevchenko V
- Shi B
- Shields EB
- Shimizu Y
- Shmanin E
- Shorkin R
- Shupperd JD
- Siddi BG
- Silva Coutinho R
- Simi G
- Simone S
- Singla M
- Skidmore N
- Skuza R
- Skwarnicki T
- Slater MW
- Smallwood JC
- Smeaton JG
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- Smith M
- Snoch A
- Soares Lavra L
- Sokoloff MD
- Soler FJP
- Solomin A
- Solovev A
- Solovyev I
- Song R
- Song Y
- Song Y
- Song YS
- Souza De Almeida FL
- Souza De Paula B
- Spadaro Norella E
- Spedicato E
- Speer JG
- Spiridenkov E
- Spradlin P
- Sriskaran V
- Stagni F
- Stahl M
- Stahl S
- Stanislaus S
- Stein EN
- Steinkamp O
- Stenyakin O
- Stevens H
- Strekalina D
- Su Y
- Suljik F
- Sun J
- Sun L
- Sun Y
- Swallow PN
- Swientek K
- Swystun F
- Szabelski A
- Szumlak T
- Szymanski M
- T'Jampens S
- Tan Y
- Taneja S
- Tat MD
- Terentev A
- Teubert F
- Thomas E
- Thompson DJD
- Tilquin H
- Tisserand V
- Tobin M
- Tomassetti L
- Tonani G
- Tong X
- Torres Machado D
- Toscano L
- Tou DY
- Trippl C
- Tuci G
- Tuning N
- Ukleja A
- Unverzagt DJ
- Ursov E
- Usachov A
- Ustyuzhanin A
- Uwer U
- Vagnoni V
- Valassi A
- Valenti G
- Valls Canudas N
- Van Dijk M
- Van Hecke H
- van Herwijnen E
- Van Hulse CB
- Van Laak R
- van Veghel M
- Vazquez Gomez R
- Vazquez Regueiro P
- Vecchi S
- Velthuis JJ
- Veltri M
- Venkateswaran A
- Vesterinen M
- Vieira D
- Vieites Diaz M
- Vilasis-Cardona X
- Vilella Figueras E
- Villa A
- Vincent P
- Volle FC
- Vom Bruch D
- Vorobyev V
- Voropaev N
- Vos K
- Vrahas C
- Vázquez Sierra C
- Walsh J
- Walton EJ
- Wan G
- Wang C
- Wang G
- Wang J
- Wang J
- Wang J
- Wang J
- Wang M
- Wang NW
- Wang R
- Wang X
- Wang Y
- Wang Z
- Wang Z
- Wang Z
- Ward JA
- Watson NK
- Websdale D
- Wei Y
- Westhenry BDC
- White DJ
- Whitehead M
- Wiederhold AR
- Wiedner D
- Wilkinson G
- Wilkinson MK
- Williams I
- Williams M
- Williams MRJ
- Williams R
- Wilson FF
- Wislicki W
- Witek M
- Witola L
- Wong CP
- Wormser G
- Wotton SA
- Wu H
- Wu J
- Wu Y
- Wyllie K
- Xian S
- Xiang Z
- Xie Y
- Xu A
- Xu J
- Xu L
- Xu L
- Xu M
- Xu Z
- Xu Z
- Xu Z
- Yang D
- Yang S
- Yang X
- Yang Y
- Yang Z
- Yang Z
- Yeroshenko V
- Yeung H
- Yin H
- Yu CY
- Yu J
- Yuan X
- Zaffaroni E
- Zavertyaev M
- Zdybal M
- Zeng M
- Zhang C
- Zhang D
- Zhang J
- Zhang L
- Zhang S
- Zhang S
- Zhang Y
- Zhang Y
- Zhao Y
- Zharkova A
- Zhelezov A
- Zheng Y
- Zhou T
- Zhou X
- Zhou Y
- Zhovkovska V
- Zhu LZ
- Zhu X
- Zhu X
- Zhu Z
- Zhukov V
- Zhuo J
- Zou Q
- Zucchelli S
- Zuliani D
- Zunica G
- Publication venue
- American Physical Society
- Publication date
- 01/02/2024
- Field of study
The decay-time-dependent
C
P
asymmetry in
B
0
s
→
J
/
ψ
(
→
μ
+
μ
−
)
K
+
K
−
decays is measured using proton-proton collision data, corresponding to an integrated luminosity of
6
fb
−
1
, collected with the LHCb detector at a center-of-mass energy of 13 TeV. Using a sample of approximately 349 000
B
0
s
signal decays with an invariant
K
+
K
−
mass in the vicinity of the
ϕ
(
1020
)
resonance, the
C
P
-violating phase
ϕ
s
is measured, along with the difference in decay widths of the light and heavy mass eigenstates of the
B
0
s
−
¯
B
0
s
system,
Δ
Γ
s
, and the difference of the average
B
0
s
and
B
0
meson decay widths,
Γ
s
−
Γ
d
. The values obtained are
ϕ
s
=
−
0.039
±
0.022
±
0.006
rad
,
Δ
Γ
s
=
0.0845
±
0.0044
±
0.0024
ps
−
1
, and
Γ
s
−
Γ
d
=
−
0.005
6
+
0.0013
−
0.0015
±
0.0014
ps
−
1
, where the first uncertainty is statistical and the second systematic. These are the most precise single measurements to date and are consistent with expectations based on the Standard Model and with the previous LHCb analyses of this decay. These results are combined with previous independent LHCb measurements. The phase
ϕ
s
is also measured independently for each polarization state of the
K
+
K
−
system and shows no evidence for polarization dependence
- …