65 research outputs found
FORMATION OF A PENTAGONAL PARTICLE STRUCTURE FROM COPPER NANOCLUSTERS
- Publication venue
- Publication date
- 05/03/2020
- Field of study
The structure o f pentagonal particles and the processes o f their formation from nanoclusters with the fifthorder symmetry axes are investigated by the methods o f computer modeling and scanning electron-ion microscopy using copper as an example. It is demonstrated that the mechanism o f cluster growth to pentagonal particles can be realized at which the volumetric stress present in noncrystal clusters will be released without breaking o f the fifth-order symmetry o f the growing cluster shape
Measurement of antiproton production from antihyperon decays in p He collisions at âsNN = 110 GeV
- Author
- Aaij R
- Abdelmotteleb ASW
- Abrantes FG
- AbudineÌn F
- Ackernley T
- Adeva B
- Adinolfi M
- Afsharnia H
- Agapopoulou C
- Aidala CA
- Aiola S
- Ajaltouni Z
- Akar S
- Akiba K
- Albero AA
- Albrecht J
- Alepuz CR
- Alessio F
- Alexander M
- Aliouche Z
- Altarelli MP
- Amalric R
- Amato S
- Amey JL
- Amhis Y
- An L
- Anderlini L
- Andersson M
- Andreianov A
- Andreotti M
- Andreou D
- Andres SB
- Ao D
- Archilli F
- Artamonov A
- Artuso M
- Aslanides E
- Atzeni M
- Audurier B
- Bachmann S
- Bachmayer M
- Back JJ
- Bailly-reyre A
- Balagura V
- Baldini W
- Barajas CAC
- 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
- Benito CM
- Berezhnoy A
- Bernet R
- Berninghoff D
- Bernstein HC
- Bertella C
- Bertolin A
- Betancourt C
- Beteta CA
- Betti F
- Bezshyiko I
- Bhasin S
- 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
- Blusk S
- Bobulska D
- Boelhauve JA
- 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
- Brodzicka J
- 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
- Campana P
- Canudas NV
- Capelli S
- Capriotti L
- Carbone A
- Carboni G
- Cardinale R
- Cardini A
- Cardoso LAG
- Carli I
- Carniti P
- Cartelle PA
- Carus L
- Casasus MP
- Caspary R
- Casse G
- Castro AP
- Castro JL
- Cattaneo M
- Cavallero G
- Cavallini V
- Cazon BRG
- Celani S
- Cerasoli J
- Cervenkov D
- Chadwick AJ
- Chapman MG
- Charles M
- Charpentier P
- Chefdeville M
- Chen C
- Chen S
- Chernov A
- Chernyshenko S
- Chobanova V
- Cholak S
- Chrzaszcz M
- Chubykin A
- Chulikov V
- Ciambrone P
- Cicala MF
- 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
- Coutinho RS
- Couturier B
- Craik DC
- CrkovskaÌ J
- Currie R
- D'Ambrosio C
- d'Argent P
- Da Graca UDC
- Da Silva CL
- Dadabaev S
- Dai L
- Dai X
- Dall'Occo E
- Dalseno J
- Daniel J
- Danilina A
- Davies JE
- Davis A
- De Almeida FLS
- de Boer J
- De Bruyn K
- De Capua S
- De Cian M
- De Lucia E
- De Miguel MR
- De Miranda JM
- De Paula BS
- 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 HP
- Denysenko V
- Deschamps O
- Dettori F
- Dey B
- Di Cicco A
- Di Nezza P
- Diachkov I
- Diaz MV
- Didenko S
- Ding S
- Dobishuk V
- Dolmatov A
- Dong C
- Donohoe AM
- Dordei F
- dos Reis AC
- Douglas L
- Downes AG
- Dudek MW
- Dufour L
- Duk V
- Durante P
- Durham JM
- Dutta D
- Dziurda A
- Dzyuba A
- Easo S
- Egede U
- Egorychev V
- Eidelman S
- Eisenhardt S
- Ejopu E
- Ek-In S
- Eklund L
- Elles SJJ
- Ely S
- Ene A
- 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 ER
- Fernandez JN
- Fernandez RAR
- Fernandez SG
- Fernez AD
- Ferrari F
- Ferrillo M
- Ferro-Luzzi M
- Figueras EV
- 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
- Francisco OD
- Franco Lima V
- Frank M
- Franzoso E
- Frau G
- Frei C
- Friday DA
- Fu J
- Fuehring Q
- Fulghesu T
- Gabriel E
- Galati G
- Galati MD
- Galli D
- Gambetta S
- Gan Y
- Gandelman M
- Gandini P
- Gao Y
- Garau M
- Garcia LM
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- Gaspar C
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- Gerken LL
- Gersabeck E
- Gersabeck M
- Gershon T
- Giambastiani L
- Gibson V
- Giemza HK
- Gilman AL
- Giovannetti M
- GioventuÌ A
- Gironell PG
- Giugliano C
- Giza MA
- Gizdov K
- Gkougkousis EL
- Gligorov VV
- Goicochea JMO
- Golobardes E
- Golubkov D
- Golutvin A
- Gomes A
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- Gomez MC
- Gomez MF
- Gomez RV
- Goncerz M
- Gong G
- Gonzalo AB
- Gorelov IV
- Gotti C
- GoÌbel C
- Grabowski JP
- Grammatico T
- Gras CS
- GraugeÌs E
- Graverini E
- Graziani G
- Grecu AT
- Greeven LM
- Grieser NA
- Grillo L
- Gromov S
- Gu C
- Guarise M
- Guittiere M
- Gushchin E
- Guth A
- Guz Y
- GuÌnther PA
- Gys T
- Hadavizadeh T
- Haefeli G
- Haen C
- Haimberger J
- Haines SC
- Halewood-leagas T
- Halvorsen MM
- Hamilton PM
- Hammerich J
- Han Q
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- Hansen EB
- Hansmann-Menzemer S
- Hao L
- Harnew N
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- Hasse C
- Hatch M
- He J
- Heijhoff K
- Heinicke 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
- Huertas AL
- 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
- Jakobsen S
- Jans E
- Jashal BK
- Jawahery A
- Jevtic V
- Jiang E
- Jiang X
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- 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
- Kucewicz W
- Kucharczyk M
- Kudryavtsev V
- Kunde GJ
- Kupsc A
- Lacarrere D
- Lafferty G
- Lai A
- Lamas MR
- Lampis A
- Lancierini D
- Lane JJ
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- Lanfranchi G
- Langenbruch C
- Langer J
- Lantwin O
- Latham T
- Lavra LS
- Lazzari F
- Lazzaroni M
- Le Gac R
- Lee SH
- LefeÌvre R
- Leflat A
- Legotin S
- Leite JBD
- Lener MP
- Lenisa P
- Leroy O
- Lesiak T
- Leverington B
- Li A
- Li H
- Li K
- Li P
- Li PR
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- Lin C
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- Lindner R
- Lisovskyi V
- Litvinov R
- Liu G
- Liu H
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- Loi A
- Lollini R
- Longstaff I
- Lopes JH
- Lopes LF
- Lopez JAR
- Lovell GH
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- Luchuk S
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- Lupato A
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- Mitreska B
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- Monk M
- Monroy IA
- Monteil S
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- Morello G
- Morello MJ
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- Romanovskiy V
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- Scarabotto A
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- Smeaton JG
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- Ursov E
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- van Beuzekom M
- Van Dijk M
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- Van Hulse CB
- van Veghel M
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- Velthuis JJ
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- Wang J
- Wang M
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- Wang Z
- Ward JA
- Watson NK
- Websdale D
- Wei Y
- Weisser C
- Westhenry BDC
- White DJ
- Whitehead M
- Wiederhold AR
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- Wilkinson G
- Wilkinson MK
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- Williams M
- Williams MRJ
- Williams R
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- Wislicki W
- Witek M
- Witola L
- Wong CP
- Wormser G
- Wotton SA
- Wu H
- Wyllie K
- Xiang Z
- Xiao D
- Xie Y
- Xu A
- Xu J
- Xu L
- Xu M
- Xu Q
- Xu Z
- Xu Z
- Yang D
- Yang S
- Yang Y
- Yang Z
- Yang Z
- Yeomans LE
- Yeroshenko V
- Yeung H
- Yin H
- Yu J
- Yuan X
- Zaffaroni E
- Zavertyaev M
- Zdybal M
- Zenaiev O
- Zeng M
- Zhang C
- Zhang D
- Zhang L
- Zhang S
- Zhang S
- Zhang Y
- Zhang 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
- 'Springer Science and Business Media LLC'
- Publication date
- 18/05/2022
- Field of study
The interpretation of cosmic antiproton flux measurements from space-borne experiments is currently limited by the knowledge of the antiproton production cross-section in collisions between primary cosmic rays and the interstellar medium. Using collisions of protons with an energy of 6.5TeV incident on helium nuclei at rest in the proximity of the interaction region of the LHCb experiment, the ratio of antiprotons originating from antihyperon decays to prompt production is measured for antiproton momenta between 12 and 110GeV. The dominant antihyperon contribution, namely ÎÂŻâpÂŻÏ+ decays from promptly produced ÎÂŻ particles, is also exclusively measured. The results complement the measurement of prompt antiproton production obtained from the same data sample. At the energy scale of this measurement, the antihyperon contributions to antiproton production are observed to be significantly larger than predictions of commonly used hadronic production models
Direct CP violation in charmless three-body decays of B± mesons
- Author
- Aaij R
- Abdelmotteleb ASW
- Abrantes FG
- AbudineÌn F
- Ackernley T
- Adeva B
- Adinolfi M
- Afsharnia H
- Agapopoulou C
- Aidala CA
- Aiola S
- Ajaltouni Z
- Akar S
- Akiba K
- Albero AA
- Albrecht J
- Alepuz CR
- Alessio F
- Alexander M
- Aliouche Z
- Altarelli MP
- Amalric R
- Amato S
- Amey JL
- Amhis Y
- An L
- Anderlini L
- Andersson M
- Andreianov A
- Andreotti M
- Andreou D
- Andres SB
- Ao D
- Archilli F
- Artamonov A
- Artuso M
- Aslanides E
- Atzeni M
- Audurier B
- Bachmann S
- Bachmayer M
- Back JJ
- Bailly-reyre A
- Balagura V
- Baldini W
- Barajas CAC
- 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
- Benito CM
- Berezhnoy A
- Bernet R
- Berninghoff D
- Bernstein HC
- Bertella C
- Bertolin A
- Betancourt C
- Beteta CA
- Betti F
- Bezshyiko I
- Bhasin S
- 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
- Blusk S
- Bobulska D
- Boelhauve JA
- 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
- Brodzicka J
- Brown J
- Brundu D
- Buonaura A
- Buonincontri L
- Burke AT
- Burr C
- Bursche A
- Butkevich A
- Butter JS
- Buytaert J
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- Cai H
- Calabrese R
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- De Miranda JM
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- De Serio M
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- Swientek K
- Szabelski A
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- Thomson KA
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- Valenti G
- van Beuzekom M
- Van Dijk M
- Van Hecke H
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- Van Hulse CB
- van Veghel M
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- Velthuis JJ
- Veltri M
- Venkateswaran A
- Veronesi M
- Vesterinen M
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- Volle FC
- vom Bruch D
- Vorobyev A
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- Voropaev N
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- Wang C
- 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
- Weisser C
- 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
- Wyllie K
- Xiang Z
- Xiao D
- Xie Y
- Xu A
- Xu J
- Xu L
- Xu M
- Xu Q
- Xu Z
- Xu Z
- Yang D
- Yang S
- Yang Y
- Yang Z
- Yang Z
- Yeomans LE
- Yeroshenko V
- Yeung H
- Yin H
- Yu J
- Yuan X
- Zaffaroni E
- Zavertyaev M
- Zdybal M
- Zenaiev O
- Zeng M
- Zhang C
- Zhang D
- Zhang L
- Zhang S
- Zhang S
- Zhang Y
- Zhang 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
- 17/06/2022
- Field of study
Measurements of
C
P
asymmetries in charmless three-body decays of
B
±
mesons are reported using proton-proton collision data collected by the LHCb detector, corresponding to an integrated luminosity of
5.9
â
â
fb
â
1
. The previously observed
C
P
asymmetry in
B
±
â
Ï
±
K
+
K
â
decays is confirmed, and
C
P
asymmetries are observed with a significance of more than five standard deviations in the
B
±
â
Ï
±
Ï
+
Ï
â
and
B
±
â
K
±
K
+
K
â
decays, while the
C
P
asymmetry of
B
±
â
K
±
Ï
+
Ï
â
decays is confirmed to be compatible with zero. The distributions of these asymmetries are also studied as a function of the three-body phase space and suggest contributions from rescattering and resonance interference processes. An indication of the presence of the decays
B
±
â
Ï
±
Ï
c
0
(
1
P
)
in both
B
±
â
Ï
±
Ï
+
Ï
â
and
B
±
â
Ï
±
K
+
K
â
decays is observed, as is
C
P
violation involving these amplitudes
Measurement of J/Ï -pair production in pp collisions at âs = 13 TeV and study of gluon transverse-momentum dependent PDFs
- Author
- Aaij R
- Abdelmotteleb ASW
- Abrantes FG
- AbudineÌn F
- Ackernley T
- Adeva B
- Adinolfi M
- Adlarson P
- Afsharnia H
- Agapopoulou C
- Aidala CA
- Ajaltouni Z
- Akar S
- Akiba K
- Albero AA
- Albicocco P
- Albrecht J
- Alessio F
- Alexander M
- Aliouche Z
- Altarelli MP
- Amalric R
- Amato S
- Amey JL
- Amhis Y
- An L
- Anderlini L
- Andersson M
- Andreianov A
- Andreola P
- Andreotti M
- Andreou D
- Andres SB
- Anelli A
- Ao D
- Archilli F
- Artamonov A
- Artuso M
- Aslanides E
- Atzeni M
- Audurier B
- Bacher D
- Bachmann S
- Bachmayer M
- Back JJ
- Bailly-reyre A
- Balagura V
- Baldini W
- Barajas CAC
- Barbetti M
- Barbosa IR
- 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 R
- Bernstein HC
- Bertella C
- Bertolin A
- Betancourt C
- Beteta CA
- Betti F
- Bex J
- Bezshyiko I
- Bhom J
- 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 V
- Boelhauve JA
- Boettcher T
- Bohare A
- Boldyrev A
- Bolognani CS
- Bolzonella R
- Bondar N
- Borgato F
- Borghi S
- Borsato M
- Borsuk JT
- Bouchiba SA
- Bouzas JC
- Bowcock TJV
- Boyer A
- Bozzi C
- Bradley MJ
- Braun S
- 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
- Campana P
- Campora Perez DH
- Canudas NV
- Capelli S
- Capriotti L
- Carbone A
- Cardinale R
- Cardini A
- Cardoso LAG
- Carniti P
- Cartelle PA
- Carus L
- Caspary R
- Casse G
- Castro AP
- Castro JC
- Cattaneo M
- Cavallero G
- Cavallini V
- Celani S
- Cerasoli J
- Cervenkov D
- Cesare S
- Chadwick AJ
- Chahrour I
- Charles M
- Charpentier P
- Chefdeville M
- Chen C
- Chen S
- Chernov A
- Chernyshenko S
- Chobanova V
- Cholak S
- Chrzaszcz M
- Chubykin A
- Chulikov V
- Ciambrone P
- Cicala MF
- 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
- Comerma-Montells A
- Congedo L
- Contu A
- Cooke N
- Corredoira I
- Correia A
- Corti G
- Coutinho RS
- Couturier B
- Craik DC
- Cuendis SA
- Currie R
- D'Ambrosio C
- d'Argent P
- Da Graca UDC
- Da Silva CL
- Dadabaev S
- Dai L
- Dai X
- Dall'Occo E
- Dalseno J
- Daniel J
- Danilina A
- Davidson A
- Davies JE
- Davis A
- De Almeida FLS
- De Angelis C
- de Boer J
- De Bruyn K
- De Capua S
- De Cian M
- De Lucia E
- De Miguel MR
- De Miranda JM
- De Paula BS
- De Paula L
- De Serio M
- De Simone D
- De Simone P
- De Vellis F
- de Vries JA
- Debernardis F
- Decamp D
- Dedu V
- Del Buono L
- Delaney B
- Dembinski H-P
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- Wislicki W
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- Wyllie K
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- Yeroshenko V
- Yeung H
- Yin H
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- Zaffaroni E
- Zavertyaev M
- Zdybal M
- Zeng M
- Zhang C
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- Zhao Y
- Zharkova A
- Zhelezov A
- Zheng XZ
- Zheng Y
- Zhou T
- Zhou X
- Zhou Y
- Zhovkovska V
- Zhu LZ
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- Zhukov V
- Zhuo J
- Zou Q
- Zuliani D
- Zunica G
- Publication venue
- Springer
- Publication date
- 01/01/2024
- Field of study
The production cross-section of J/Ï pairs in proton-proton collisions at a centre-of-mass energy of âs = 13 TeV is measured using a data sample corresponding to an integrated luminosity of 4.2 fbâ1 collected by the LHCb experiment. The measurement is performed with both J/Ï mesons in the transverse momentum range 0 < pT< 14 GeV/c and rapidity range 2.0 < y < 4.5. The cross-section of this process is measured to be 16.36 ± 0.28 (stat) ± 0.88 (syst) nb. The contributions from single-parton scattering and double-parton scattering are separated based on the dependence of the cross-section on the absolute rapidity difference ây between the two J/Ï mesons. The effective cross-section of double-parton scattering is measured to be Ïeff = 13.1 ± 1.8 (stat) ± 2.3 (syst) mb. The distribution of the azimuthal angle ÏCS of one of the J/Ï mesons in the Collins-Soper frame and the pT-spectrum of the J/Ï pairs are also measured for the study of the gluon transverse-momentum dependent distributions inside protons. The extracted values of âšcos 2ÏCSâ© and âšcos 4ÏCSâ© are consistent with zero, but the presence of azimuthal asymmetry at a few percent level is allowed
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