214 research outputs found
Segmentation of EM showers for neutrino experiments with deep graph neural networks
- Publication venue
- Publication date
- 01/01/2021
- Field of study
We introduce a first-ever algorithm for the reconstruction of multiple
showers from the data collected with electromagnetic (EM) sampling
calorimeters. Such detectors are widely used in High Energy Physics to measure
the energy and kinematics of in-going particles. In this work, we consider the
case when many electrons pass through an Emulsion Cloud Chamber (ECC) brick,
initiating electron-induced electromagnetic showers, which can be the case with
long exposure times or large input particle flux. For example, SHiP experiment
is planning to use emulsion detectors for dark matter search and neutrino
physics investigation. The expected full flux of SHiP experiment is about 10^20
particles over five years. To reduce the cost of the experiment associated with
the replacement of the ECC brick and off-line data taking (emulsion scanning),
it is decided to increase exposure time. Thus, we expect to observe a lot of
overlapping showers, which turn EM showers reconstruction into a challenging
point cloud segmentation problem. Our reconstruction pipeline consists of a
Graph Neural Network that predicts an adjacency matrix and a clustering
algorithm. We propose a new layer type (EmulsionConv) that takes into account
geometrical properties of shower development in ECC brick. For the clustering
of overlapping showers, we use a modified hierarchical density-based clustering
algorithm. Our method does not use any prior information about the incoming
particles and identifies up to 87% of electromagnetic showers in emulsion
detectors. The main test bench for the algorithm for reconstructing
electromagnetic showers is going to be [email protected]: 29 pages, 27 figure
TurboSP and the Topological Trigger
- Author
- Publication venue
- Publication date
- 25/08/2016
- Field of study
TurboSP was originally proposed as an alternative to Full stream in LHCb data flow. TurboSP is a data flow strategy which not only selects events that should be preserved, like in Full stream, but also provides selective persistence. This is achieved by saving candidates and subset of the reconstruction. During this summer project we investigated the physics viability of using TurboSP with the topological lines and found out a possibility to reduce the number of kept tracks per event by two times while keeping a ratio of fully picked up interesting decay modes on âŒ97% level
Measurement of CP-violating and mixing-induced observables in Bs0ââÏÎł decays
- Author
- Aaij Roel
- AbellĂĄn Beteta Carlos
- Adeva Bernardo
- Adinolfi Marco
- Aidala Christine Angela
- Ajaltouni Ziad
- Akar Simon
- Albicocco Pietro
- Albrecht Johannes
- Alessio Federico
- Alexander Michael
- Alfonso Albero Alejandro
- Alkhazov Georgy
- Alvarez Cartelle Paula
- Alves Jr. Antonio Augusto
- Amato Sandra
- Amhis Yasmine
- An Liupan
- Anderlini Lucio
- Andreassi Guido
- Andreotti Mirco
- Andrews Jason
- Archilli Flavio
- Arnau Romeu Joan
- Artamonov Alexander
- Artuso Marina
- Arzymatov Kenenbek
- Aslanides Elie
- Atzeni Michele
- Audurier Benjamin
- Bachmann Sebastian
- Back John
- Baker Sophie
- Balagura Vladislav
- Baldini Wander
- Baranov Alexander
- Barlow Roger
- Barsuk Sergey
- Barter William
- Bartolini Matteo
- Baryshnikov Fedor
- Batozskaya Varvara
- Batsukh Baasansuren
- Battig Alexander
- Battista Vincenzo
- Bay Aurelio
- Bedeschi Franco
- Bediaga Ignacio
- Beiter Andrew
- Bel Lennaert
- Belavin Vladislav
- Belin Samuel
- Beliy Nikita
- Bellee Violaine
- Belloli Nicoletta
- Belous Konstantin
- Belyaev Ivan
- Ben-Haim Eli
- Bencivenni Giovanni
- Benson Sean
- Beranek Sarah
- Berezhnoy Alexander
- Bernet Roland
- Berninghoff Daniel
- Bertholet Emilie
- Bertolin Alessandro
- Betancourt Christopher
- Betti Federico
- Bettler Marc-Olivier
- Bezshyiko Iaroslava
- Bhasin Srishti
- Bhom Jihyun
- Bieker Martin Stefan
- Bifani Simone
- Billoir Pierre
- Birnkraut Alex
- Bizzeti Andrea
- BjĂžrn Mikkel
- Blago Michele Piero
- Blake Thomas
- Blanc Frederic
- Blusk Steven
- Bobulska Dana
- Bocci Valerio
- Boente Garcia Oscar
- Boettcher Thomas
- Bondar Alexander
- Bondar Nikolay
- Borghi Silvia
- Borisyak Maxim
- Borsato Martino
- Boubdir Meriem
- Bowcock Themistocles
- Bozzi Concezio
- Braun Svende
- Brea Rodriguez Alexandre
- Brodski Michael
- Brodzicka Jolanta
- Brossa Gonzalo Arnau
- Brundu Davide
- Buchanan Emma
- Buonaura Annarita
- Burr Christopher
- Bursche Albert
- Butter Jordy Sebastiaan
- Buytaert Jan
- Byczynski Wiktor
- Cadeddu Sandro
- Cai Hao
- Calabrese Roberto
- Cali Stefano
- Calladine Ryan
- Calvi Marta
- Calvo Gomez Miriam
- Camboni Alessandro
- Campana Pierluigi
- Campora Perez Daniel
- Capriotti Lorenzo
- Carbone Angelo
- Carboni Giovanni
- Cardinale Roberta
- Cardini Alessandro
- Carniti Paolo
- Carvalho Akiba Kazuyoshi
- Casais Vidal Adrian
- Casse Gianluigi
- Cattaneo Marco
- Cavallero Giovanni
- Cenci Riccardo
- Chapman Matthew George
- Charles Matthew
- Charpentier Philippe
- Chatzikonstantinidis Georgios
- Chefdeville Maximilien
- Chekalina Viktoriia
- Chen Chen
- Chen Shanzhen
- Chitic Stefan-Gabriel
- Chobanova Veronika
- Chrzaszcz Marcin
- Chubykin Alexsei
- Ciambrone Paolo
- Cid Vidal Xabier
- Ciezarek Gregory
- Cindolo Federico
- Clarke Peter
- Clemencic Marco
- Cliff Harry
- Closier Joel
- Coco Victor
- Coelho Joao A. B.
- Cogan Julien
- Cogneras Eric
- Cojocariu Lucian
- Collins Paula
- Colombo Tommaso
- Comerma-Montells Albert
- Contu Andrea
- Coombs George
- Coquereau Samuel
- Corti Gloria
- Costa Sobral Cayo Mar
- Couturier Benjamin
- Cowan Greig
- Craik Daniel Charles
- Crocombe Andrew
- Cruz Torres Melissa Maria
- Currie Robert
- D'Ambrosio Carmelo
- d'Argent Philippe
- Da Silva Cesar Luiz
- Dall'Occo Elena
- Dalseno Jeremy
- Danilina Anna
- Davis Adam
- De Aguiar Francisco Oscar
- De Bruyn Kristof
- De Capua Stefano
- De Cian Michel
- De Miranda Jussara M.
- De Paula Leandro
- De Serio Marilisa
- De Simone Patrizia
- de Vries Jacco
- Dean Cameron Thomas
- Dean William
- Decamp Daniel
- Del Buono Luigi
- Delaney Blaise
- Dembinski Hans Peter
- Demmer Moritz
- Dendek Adam
- Derkach Denis
- Deschamps Olivier
- Desse Fabrice
- Dettori Francesco
- Dey Biplab
- Di Canto Angelo
- Di Nezza Pasquale
- Didenko Sergey
- Dijkstra Hans
- Dordei Francesca
- Dorigo Mirco
- dos Reis Alberto C.
- Dosil SuĂĄrez Alvaro
- Douglas Lauren
- Dovbnya Anatoliy
- Dreimanis Karlis
- Dufour Laurent
- Dujany Giulio
- Durante Paolo
- Durham John Matthew
- Dutta Deepanwita
- Dzhelyadin Rustem
- Dziewiecki Michal
- Dziurda Agnieszka
- Dzyuba Alexey
- Easo Sajan
- Egede Ulrik
- Egorychev Victor
- Eidelman Semen
- Eisenhardt Stephan
- Eitschberger Ulrich
- Ek-In Surapat
- Ekelhof Robert
- Eklund Lars
- Ely Scott
- Ene Alexandru
- Escher Stephan
- Esen Sevda
- Evans Timothy
- Falabella Antonio
- Farley Nathanael
- Farry Stephen
- Fazzini Davide
- Fernandez Declara Placido
- Fernandez Prieto Antonio
- Ferrari Fabio
- Ferreira Lopes Lino
- Ferreira Rodrigues Fernando
- Ferreres Sole Silvia
- Ferro-Luzzi Massimiliano
- Filippov Sergey
- Fini Rosa Anna
- Fiorini Massimiliano
- Firlej Miroslaw
- Fitzpatrick Conor
- Fiutowski Tomasz
- Fleuret Frederic
- Fontana Marianna
- Fontanelli Flavio
- Forty Roger
- Franco Lima Vinicius
- Franco Sevilla Manuel
- Frank Markus
- Frei Christoph
- Fu Jinlin
- Funk Wolfgang
- FĂ€rber Christian
- FĂ©o Mauricio
- Gabriel Emmy
- Gallas Torreira Abraham
- Galli Domenico
- Gallorini Stefano
- Gambetta Silvia
- Gan Yuyue
- Gandelman Miriam
- Gandini Paolo
- Gao Yuanning
- Garcia Martin Luis Miguel
- Garcia Plana Beatriz
- GarcĂa Pardiñas JuliĂĄn
- Garra Tico Jordi
- Garrido Lluis
- Gascon David
- Gaspar Clara
- Gazzoni Giulio
- Gerick David
- Gersabeck Evelina
- Gersabeck Marco
- Gershon Timothy
- Gerstel Dawid
- Ghez Philippe
- Gibson Valerie
- Girard Olivier Göran
- Gironella Gironell Pere
- Giubega Lavinia-Helena
- Gizdov Konstantin
- Gligorov Vladimir
- Golubkov Dmitry
- Golutvin Andrey
- Gomes Alvaro
- Gorelov Igor Vladimirovich
- Gotti Claudio
- Govorkova Ekaterina
- Grabowski Jascha Peter
- Graciani Diaz Ricardo
- Granado Cardoso Luis Alberto
- Graugés Eugeni
- Graverini Elena
- Graziani Giacomo
- Grecu Alexandru
- Greim Roman
- Griffith Peter
- Grillo Lucia
- Gruber Lukas
- Gruberg Cazon Barak Raimond
- Gu Chenxi
- Gushchin Evgeny
- Guz Yury
- Gys Thierry
- Göbel Carla
- GĂŒth Andreas
- Hadavizadeh Thomas
- Hadjivasiliou Christos
- Haefeli Guido
- Haen Christophe
- Haines Susan
- Hamilton Brian
- Han Qundong
- Han Xiaoxue
- Hancock Thomas Henry
- Hansmann-Menzemer Stephanie
- Harnew Neville
- Harrison Thomas
- Hasse Christoph
- Hatch Mark
- He Jibo
- Hecker Malte
- Heinicke Kevin
- Heister Arno
- Hennessy Karol
- Henry Louis
- Heuel Johannes
- HeĂ Miriam
- Hicheur AdlĂšne
- Hidalgo Charman Raoul
- Hill Donal
- Hilton Martha
- Hopchev Plamen Hristov
- Hu Jiangqiao
- Hu Wenhua
- Huang Wenqian
- Huard Zachary
- Hulsbergen Wouter
- Humair Thibaud
- Hushchyn Mikhail
- Hutchcroft David
- Hynds Daniel
- Ibis Philipp
- Idzik Marek
- Ilten Philip
- Inglessi Alexander
- Inyakin Alexander
- Ivshin Kuzma
- Jacobsson Richard
- Jakobsen Sune
- Jalocha Pawel
- Jans Eddy
- Jashal Brij Kishor
- Jawahery Abolhassan
- Jiang Feng
- John Malcolm
- Johnson Daniel
- Jones Christopher
- Joram Christian
- Jost Beat
- Jurik Nathan
- Kandybei Sergii
- Karacson Matthias
- Kariuki James Mwangi
- Karodia Sarah
- Kazeev Nikita
- Kecke Matthieu
- Keizer Floris
- Kelsey Matthew
- Kenzie Matthew
- Ketel Tjeerd
- Khanji Basem
- Kharisova Anastasiia
- Khurewathanakul Chitsanu
- Kim Kyung Eun
- Kirn Thomas
- Kirsebom Veronica Soelund
- Klaver Suzanne
- Klimaszewski Konrad
- Koliiev Serhii
- Kolpin Michael
- Kondybayeva Almagul
- Konoplyannikov Anatoly
- Kopecna Renata
- Koppenburg Patrick
- Kostiuk Igor
- Kot Oleksander
- Kotriakhova Sofia
- Kozeiha Mohamad
- Kravchuk Leonid
- Kreps Michal
- Kress Felix Johannes
- Kretzschmar Sophie Katharina
- Krokovny Pavel
- Krupa Wojciech
- Krzemien Wojciech
- Kucewicz Wojciech
- Kucharczyk Marcin
- Kudryavtsev Vasily
- Kunde Gerd Joachim
- Kuonen Axel Kevin
- Kvaratskheliya Tengiz
- Lacarrere Daniel
- Lafferty George
- Lai Adriano
- Lancierini Davide
- Lanfranchi Gaia
- Langenbruch Christoph Michael
- Latham Thomas
- Lazzeroni Cristina
- Le Gac Renaud
- Leflat Alexander
- LefĂšvre Regis
- Lemaitre Florian
- Leroy Olivier
- Lesiak Tadeusz
- Leverington Blake
- LHCb Collaboration
- Li Hengne
- Li Pei-Rong
- Li Xuan
- Li Yiming
- Li Zhuoming
- Liang Xixin
- Likhomanenko Tatiana
- Lindner Rolf
- Lionetto Federica
- Lisovskyi Vitalii
- Liu Guoming
- Liu Xuesong
- Loh David
- Loi Angelo
- Lomba Castro Julian
- Longstaff Iain
- Lopes Jose
- Loustau Guillermo
- Lovell George Holger
- Lucchesi Donatella
- Lucio Martinez Miriam
- Luo Yiheng
- Lupato Anna
- Luppi Eleonora
- Lupton Oliver
- Lusiani Alberto
- Lyu Xiao-Rui
- Machefert Frederic
- Maciuc Florin
- Macko Vladimir
- Mackowiak Patrick
- Maddrell-Mander Samuel
- Maev Oleg
- Maguire Kevin
- Maisuzenko Dmitrii
- Majewski Maciej Witold
- Malde Sneha
- Malecki Bartosz
- Malinin Alexander
- Maltsev Timofei
- Malygina Hanna
- Manca Giulia
- Mancinelli Giampiero
- Marangotto Daniele
- Maratas Jan
- Marchand Jean François
- Marconi Umberto
- Marin Benito Carla
- Marinangeli Matthieu
- Marino Pietro
- Marks Jörg
- Marshall Phillip John
- Martellotti Giuseppe
- Martinazzoli Loris
- Martinelli Maurizio
- Martinez Santos Diego
- Martinez Vidal Fernando
- Massafferri André
- Materok Marcel
- Matev Rosen
- Mathad Abhijit
- Mathe Zoltan
- Matiunin Viacheslav
- Matteuzzi Clara
- Mattioli Kara Renee
- Mauri Andrea
- Maurice Emilie
- Maurin Brice
- McCann Michael
- McNab Andrew
- McNulty Ronan
- Mead James Vincent
- Meadows Brian
- Meaux Cedric
- Meinert Nis
- Melnychuk Dmytro
- Merk Marcel
- Merli Andrea
- Michielin Emanuele
- Milanes Diego Alejandro
- Millard Edward James
- Minard Marie-Noelle
- Mineev Oleg
- Minzoni Luca
- Mitzel Dominik Stefan
- Mogini Andrea
- Moise Razvan Daniel
- MombÀcher Titus
- Monroy Igancio Alberto
- Monteil Stephane
- Morandin Mauro
- Morello Gianfranco
- Morello Michael Joseph
- Moron Jakub
- Morris Adam Benjamin
- Mountain Raymond
- Mu Hongjie
- Muheim Franz
- Mukherjee Maitreyee
- Mulder Mick
- Murphy Colm Harold
- Murray Donal
- Mödden Antje
- MĂŒller Dominik
- MĂŒller Janine
- MĂŒller Katharina
- MĂŒller Vanessa
- Naik Paras
- Nakada Tatsuya
- Nandakumar Raja
- Nandi Anita
- Nanut Tara
- Nasteva Irina
- Needham Matthew
- Neri Nicola
- Neubert Sebastian
- Neufeld Niko
- Newcombe Ryan
- Nguyen Thi Dung
- Nguyen-Mau Chung
- Nieswand Simon
- Niet Ramon
- Nikitin Nikolay
- Nolte Niklas Stefan
- O'Hanlon Daniel Patrick
- Oblakowska-Mucha Agnieszka
- Obraztsov Vladimir
- Ogilvy Stephen
- Oldeman Rudolf
- Onderwater Gerco
- Osborn Joseph Daniel
- Ossowska Anna
- Otalora Goicochea Juan Martin
- Ovsiannikova Tatiana
- Owen Patrick
- Oyanguren Maria Aranzazu
- Pais Preema Rennee
- Pajero Tommaso
- Palano Antimo
- Palutan Matteo
- Panshin Gennady
- Papanestis Antonios
- Pappagallo Marco
- Pappalardo Luciano
- Parker William
- Parkes Christopher
- Passaleva Giovanni
- Pastore Alessandra
- Patel Mitesh
- Patrignani Claudia
- Pearce Alex
- Pellegrino Antonio
- Penso Gianni
- Pepe Altarelli Monica
- Perazzini Stefano
- Pereima Dmitrii
- Perret Pascal
- Pescatore Luca
- Petridis Konstantinos
- Petrolini Alessandro
- Petrov Aleksandr
- Petrucci Stefano
- Petruzzo Marco
- Pietrzyk Boleslaw
- Pietrzyk Guillaume
- Pikies Malgorzata
- Pili Martina
- Pinci Davide
- Pinzino Jacopo
- Pisani Flavio
- Piucci Alessio
- Placinta Vlad-Mihai
- Playfer Stephen
- Plews Jonathan
- Plo Casasus Maximo
- Polci Francesco
- Poli Lener Marco
- Poliakova Mariia
- Poluektov Anton
- Polukhina Natalia
- Polyakov Ivan
- Polycarpo Erica
- Pomery Gabriela Johanna
- Ponce Sebastien
- Popov Alexander
- Popov Dmitry
- Poslavskii Stanislav
- Price Eugenia
- Prouve Claire
- Pugatch Valery
- Puig Navarro Albert
- Pullen Hannah Louise
- Punzi Giovanni
- Qian Wenbin
- Qin Jia-Jia
- Quagliani Renato
- Quintana Boris
- Raab Naomi Veronika
- Rachwal Bartlomiej
- Rademacker Jonas
- Rama Matteo
- Ramos Pernas Miguel
- Rangel Murilo
- Ratnikov Fedor
- Raven Gerhard
- Ravonel Salzgeber Melody
- Reboud Meril
- Redi Federico
- Reichert Stefanie
- Reiss Florian
- Remon Alepuz Clara
- Ren Zan
- Renaudin Victor
- Ricciardi Stefania
- Richards Sophie
- Rinnert Kurt
- Robbe Patrick
- Robert Arnaud
- Rodrigues Ana Barbara
- Rodrigues Eduardo
- Rodriguez Lopez Jairo Alexis
- Roehrken Markus
- Roiser Stefan
- Rollings Alexandra Paige
- Romanovskiy Vladimir
- Romero Vidal Antonio
- Roth Jordan Daniel
- Rotondo Marcello
- Rudolph Matthew Scott
- Ruf Thomas
- Ruiz Vidal Joan
- Saborido Silva Juan Jose
- Sagidova Naylya
- Saitta Biagio
- Salustino Guimaraes Valdir
- Sanchez Gras Cristina
- Sanchez Mayordomo Carlos
- Sanmartin Sedes Brais
- Santacesaria Roberta
- Santamarina Rios Cibran
- Santimaria Marco
- Santovetti Emanuele
- Sarpis Gediminas
- Sarti Alessio
- Satriano Celestina
- Satta Alessia
- Saur Miroslav
- Savrina Darya
- Schael Stefan
- Schellenberg Margarete
- Schiller Manuel
- Schindler Heinrich
- Schmelling Michael
- Schmelzer Timon
- Schmidt Burkhard
- Schneider Olivier
- Schopper Andreas
- Schreiner H. F.
- Schubiger Maxime
- Schulte Sebastian
- Schune Marie Helene
- Schwemmer Rainer
- Sciascia Barbara
- Sciubba Adalberto
- Semennikov Alexander
- Sepulveda Eduardo Enrique
- Sergi Antonino
- Serra Nicola
- Serrano Justine
- Sestini Lorenzo
- Seuthe Alex
- Seyfert Paul
- Shapkin Mikhail
- Shears Tara
- Shekhtman Lev
- Shevchenko Vladimir
- Shmanin Evgenii
- Siddi Benedetto Gianluca
- Silva Coutinho Rafael
- Silva de Oliveira Luiz Gustavo
- Simi Gabriele
- Simone Saverio
- Skiba Igor
- Skidmore Nicola
- Skwarnicki Tomasz
- Slater Mark
- Smeaton John Gordon
- Smith Eluned
- Smith Iwan Thomas
- Smith Mark
- Soares Lavra Lais
- Soares Marcelo
- Sokoloff Michael
- Soler Paul
- Souza De Paula Bruno
- Spaan Bernhard
- Spadaro Norella Elisabetta
- Spradlin Patrick
- Stagni Federico
- Stahl Marian
- Stahl Sascha
- Stefko Pavol
- Stefkova Slavomira
- Steinkamp Olaf
- Stemmle Simon
- Stenyakin Oleg
- Stepanova Margarita
- Stevens Holger
- Stocchi Achille
- Stone Sheldon
- Stracka Simone
- Stramaglia Maria Elena
- Straticiuc Mihai
- Straumann Ulrich
- Strokov Sergey
- Sun Jiayin
- Sun Liang
- Sun Yipeng
- Swientek Krzysztof
- Szabelski Adam
- Szumlak Tomasz
- Szymanski Maciej Pawel
- T'Jampens Stephane
- Tang Zhipeng
- Tekampe Tobias
- Tellarini Giulia
- Teubert Frederic
- Thomas Eric
- Tilley Matthew James
- Tisserand Vincent
- Tobin Mark
- Tolk Siim
- Tomassetti Luca
- Tonelli Diego
- Tou Da Yu
- Tournefier Edwige
- Traill Murdo
- Tran Minh TĂąm
- Trisovic Ana
- Tsaregorodtsev Andrei
- Tuci Giulia
- Tully Alison
- Tuning Niels
- Ukleja Artur
- Usachov Andrii
- Ustyuzhanin Andrey
- Uwer Ulrich
- Vagner Alexander
- Vagnoni Vincenzo
- Valassi Andrea
- Valat Sebastien
- Valenti Giovanni
- van Beuzekom Martinus
- Van Hecke Hubert
- van Herwijnen Eric
- Van Hulse Charlotte Barbara
- van Tilburg Jeroen
- van Veghel Maarten
- Vazquez Gomez Ricardo
- Vazquez Regueiro Pablo
- Vecchi Stefania
- Velthuis Jaap
- Veltri Michele
- Venkateswaran Aravindhan
- Vernet Maxime
- Veronesi Michele
- Vesterinen Mika
- Viana Barbosa Joao Vitor
- Vieira Daniel
- Vieites Diaz Maria
- Viemann Harald
- Vilasis-Cardona Xavier
- Vitkovskiy Arseniy
- Vitti Marcela
- Volkov Vladimir
- Vollhardt Achim
- Vom Bruch Dorothea
- Voneki Balazs
- Vorobyev Alexey
- Vorobyev Vitaly
- Voropaev Nikolai
- VĂĄzquez Sierra Carlos
- Waldi Roland
- Walsh John
- Wang Jianchun
- Wang Jianqiao
- Wang Mengzhen
- Wang Yilong
- Wang Zhenzi
- Ward David
- Wark Heather Mckenzie
- Watson Nigel
- Websdale David
- Weiden Andreas
- Weisser Constantin
- Whitehead Mark
- Wilkinson Guy
- Wilkinson Michael
- Williams Ifan
- Williams Mark Richard James
- Williams Mike
- Williams Timothy
- Wilson Fergus
- Winn Michael Andreas
- Wislicki Wojciech
- Witek Mariusz
- Wormser Guy
- Wotton Stephen
- Wyllie Kenneth
- Xiao Dong
- Xie Yuehong
- Xing Hongxi
- Xu Ao
- Xu Li
- Xu Menglin
- Xu Qingnian
- Xu Zehua
- Xu Zhirui
- Yang Zhenwei
- Yang Zishuo
- Yao Yuezhe
- Yeomans Lauren Emma
- Yin Hang
- Yu Jiesheng
- Yuan Xuhao
- Yushchenko Oleg
- Zarebski Kristian Alexander
- Zavertyaev Mikhail
- Zeng Ming
- Zhang Dongliang
- Zhang Liming
- Zhang Shunan
- Zhang Wen Chao
- Zhang Yanxi
- Zhelezov Alexey
- Zheng Yangheng
- Zhu Xianglei
- Zhukov Valery
- Zonneveld Jennifer Brigitta
- Zucchelli Stefano
- Publication venue
- HAL CCSD
- Publication date
- 01/01/2019
- Field of study
International audienceA time-dependent analysis of the Bs0âÏÎł decay rate is performed to determine the CP -violating observables SÏÎł and CÏÎł and the mixing-induced observable AÏÎłÎ. The measurement is based on a sample of pp collision data recorded with the LHCb detector, corresponding to an integrated luminosity of 3ââfb-1 at center-of-mass energies of 7 and 8 TeV. The measured values are SÏÎł=0.43±0.30±0.11, CÏÎł=0.11±0.29±0.11, and AÏÎłÎ=-0.67-0.41+0.37±0.17, where the first uncertainty is statistical and the second systematic. This is the first measurement of the observables S and C in radiative Bs0 decays. The results are consistent with the standard model predictions
Observation of Several Sources of CP Violation in B+âÏ+Ï+Ïâ Decays
- Author
- Aaij Roel
- AbellĂĄn Beteta Carlos
- Adeva Bernardo
- Adinolfi Marco
- Aidala Christine Angela
- Ajaltouni Ziad
- Akar Simon
- Albicocco Pietro
- Albrecht Johannes
- Alessio Federico
- Alexander Michael
- Alfonso Albero Alejandro
- Alkhazov Georgy
- Alvarez Cartelle Paula
- Alves Jr Antonio Augusto
- Amato Sandra
- Amhis Yasmine
- An Liupan
- Anderlini Lucio
- Andreassi Guido
- Andreotti Mirco
- Andrews Jason
- Archilli Flavio
- Arnau Romeu Joan
- Artamonov Alexander
- Artuso Marina
- Arzymatov Kenenbek
- Aslanides Elie
- Atzeni Michele
- Audurier Benjamin
- Bachmann Sebastian
- Back John
- Baker Sophie
- Balagura Vladislav
- Baldini Wander
- Baranov Alexander
- Barlow Roger
- Barsuk Sergey
- Barter William
- Bartolini Matteo
- Baryshnikov Fedor
- Batozskaya Varvara
- Batsukh Baasansuren
- Battig Alexander
- Battista Vincenzo
- Bay Aurelio
- Bedeschi Franco
- Bediaga Ignacio
- Beiter Andrew
- Bel Lennaert
- Belavin Vladislav
- Belin Samuel
- Beliy Nikita
- Bellee Violaine
- Belous Konstantin
- Belyaev Ivan
- Ben-Haim Eli
- Bencivenni Giovanni
- Benson Sean
- Beranek Sarah
- Berezhnoy Alexander
- Bernet Roland
- Berninghoff Daniel
- Bertholet Emilie
- Bertolin Alessandro
- Betancourt Christopher
- Betti Federico
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- Vorobyev Alexey
- Vorobyev Vitaly
- Voropaev Nikolai
- VĂĄzquez Sierra Carlos
- Waldi Roland
- Walsh John
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- Wang Jianqiao
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- Wang Yilong
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- Weiden Andreas
- Weisser Constantin
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- Wilkinson Michael
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- Williams Mark Richard James
- Williams Mike
- Williams Timothy
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- Winn Michael Andreas
- Wislicki Wojciech
- Witek Mariusz
- Wormser Guy
- Wotton Stephen
- Wyllie Kenneth
- Xiang Zhiyu
- Xiao Dong
- Xie Yuehong
- Xing Hongxi
- Xu Ao
- Xu Li
- Xu Menglin
- Xu Qingnian
- Xu Zehua
- Xu Zhirui
- Yang Zhenwei
- Yang Zishuo
- Yao Yuezhe
- Yeomans Lauren Emma
- Yin Hang
- Yu Jiesheng
- Yuan Xuhao
- Yushchenko Oleg
- Zarebski Kristian Alexander
- Zavertyaev Mikhail
- Zeng Ming
- Zhang Dongliang
- Zhang Liming
- Zhang Shunan
- Zhang Wen Chao
- Zhang Yanxi
- Zhelezov Alexey
- Zheng Yangheng
- Zhou Yixiong
- Zhu Xianglei
- Zhukov Valery
- Zonneveld Jennifer Brigitta
- Zucchelli Stefano
- Publication venue
- 'American Physical Society (APS)'
- Publication date
- 11/09/2019
- Field of study
International audienceObservations are reported of different sources of CP violation from an amplitude analysis of B+âÏ+Ï+Ï- decays, based on a data sample corresponding to an integrated luminosity of 3ââfb-1 of pp collisions recorded with the LHCb detector. A large CP asymmetry is observed in the decay amplitude involving the tensor f2(1270) resonance, and in addition significant CP violation is found in the Ï+Ï-S wave at low invariant mass. The presence of CP violation related to interference between the Ï+Ï-S wave and the P wave B+âÏ(770)0Ï+ amplitude is also established; this causes large local asymmetries but cancels when integrated over the phase space of the decay. The results provide both qualitative and quantitative new insights into CP -violation effects in hadronic B decays
Measurement of CP violation in the Bs0ââÏÏ decay and search for the B0âÏÏ decay
- Author
- Aaij Roel
- AbellĂĄn Beteta Carlos
- Adeva Bernardo
- Adinolfi Marco
- Aidala Christine Angela
- Ajaltouni Ziad
- Akar Simon
- Albicocco Pietro
- Albrecht Johannes
- Alessio Federico
- Alexander Michael
- Alfonso Albero Alejandro
- Alkhazov Georgy
- Alvarez Cartelle Paula
- Alves Jr. Antonio Augusto
- Amato Sandra
- Amhis Yasmine
- An Liupan
- Anderlini Lucio
- Andreassi Guido
- Andreotti Mirco
- Andrews Jason
- Archilli Flavio
- Arnau Romeu Joan
- Artamonov Alexander
- Artuso Marina
- Arzymatov Kenenbek
- Aslanides Elie
- Atzeni Michele
- Audurier Benjamin
- Bachmann Sebastian
- Back John
- Baker Sophie
- Balagura Vladislav
- Baldini Wander
- Baranov Alexander
- Barlow Roger
- Barsuk Sergey
- Barter William
- Bartolini Matteo
- Baryshnikov Fedor
- Batozskaya Varvara
- Batsukh Baasansuren
- Battig Alexander
- Battista Vincenzo
- Bay Aurelio
- Bedeschi Franco
- Bediaga Ignacio
- Beiter Andrew
- Bel Lennaert
- Belavin Vladislav
- Belin Samuel
- Beliy Nikita
- Bellee Violaine
- Belous Konstantin
- Belyaev Ivan
- Ben-Haim Eli
- Bencivenni Giovanni
- Benson Sean
- Beranek Sarah
- Berezhnoy Alexander
- Bernet Roland
- Berninghoff Daniel
- Bertholet Emilie
- Bertolin Alessandro
- Betancourt Christopher
- Betti Federico
- Bettler Marc-Olivier
- Bezshyiko Iaroslava
- Bhasin Srishti
- Bhom Jihyun
- Bieker Martin Stefan
- Bifani Simone
- Billoir Pierre
- Birnkraut Alex
- Bizzeti Andrea
- BjĂžrn Mikkel
- Blago Michele Piero
- Blake Thomas
- Blanc Frederic
- Blusk Steven
- Bobulska Dana
- Bocci Valerio
- Boente Garcia Oscar
- Boettcher Thomas
- Boldyrev Alexey
- Bondar Alexander
- Bondar Nikolay
- Borghi Silvia
- Borisyak Maxim
- Borsato Martino
- Boubdir Meriem
- Bowcock Themistocles
- Bozzi Concezio
- Braun Svende
- Brea Rodriguez Alexandre
- Brodski Michael
- Brodzicka Jolanta
- Brossa Gonzalo Arnau
- Brundu Davide
- Buchanan Emma
- Buonaura Annarita
- Burr Christopher
- Bursche Albert
- Butter Jordy Sebastiaan
- Buytaert Jan
- Byczynski Wiktor
- Cadeddu Sandro
- Cai Hao
- Calabrese Roberto
- Cali Stefano
- Calladine Ryan
- Calvi Marta
- Calvo Gomez Miriam
- Camboni Alessandro
- Campana Pierluigi
- Campora Perez Daniel
- Capriotti Lorenzo
- Carbone Angelo
- Carboni Giovanni
- Cardinale Roberta
- Cardini Alessandro
- Carniti Paolo
- Carvalho Akiba Kazuyoshi
- Casais Vidal Adrian
- Casse Gianluigi
- Cattaneo Marco
- Cavallero Giovanni
- Cenci Riccardo
- Chapman Matthew George
- Charles Matthew
- Charpentier Philippe
- Chatzikonstantinidis Georgios
- Chefdeville Maximilien
- Chekalina Viktoriia
- Chen Chen
- Chen Shanzhen
- Chitic Stefan-Gabriel
- Chobanova Veronika
- Chrzaszcz Marcin
- Chubykin Alexsei
- Ciambrone Paolo
- Cid Vidal Xabier
- Ciezarek Gregory
- Cindolo Federico
- Clarke Peter
- Clemencic Marco
- Cliff Harry
- Closier Joel
- Cobbledick John Leslie
- Coco Victor
- Coelho Joao A. B.
- Cogan Julien
- Cogneras Eric
- Cojocariu Lucian
- Collins Paula
- Colombo Tommaso
- Comerma-Montells Albert
- Contu Andrea
- Coombs George
- Coquereau Samuel
- Corti Gloria
- Costa Sobral Cayo Mar
- Couturier Benjamin
- Cowan Greig
- Craik Daniel Charles
- Crocombe Andrew
- Cruz Torres Melissa Maria
- Currie Robert
- D'Ambrosio Carmelo
- d'Argent Philippe
- Da Silva Cesar Luiz
- Dall'Occo Elena
- Dalseno Jeremy
- Danilina Anna
- Davis Adam
- De Aguiar Francisco Oscar
- De Bruyn Kristof
- De Capua Stefano
- De Cian Michel
- De Miranda Jussara M.
- De Paula Leandro
- De Serio Marilisa
- De Simone Patrizia
- de Vries Jacco
- Dean Cameron Thomas
- Dean William
- Decamp Daniel
- Del Buono Luigi
- Delaney Blaise
- Dembinski Hans Peter
- Demmer Moritz
- Dendek Adam
- Derkach Denis
- Deschamps Olivier
- Desse Fabrice
- Dettori Francesco
- Dey Biplab
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- Vazquez Regueiro Pablo
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- Vorobyev Vitaly
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- Wang Yilong
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- Wark Heather Mckenzie
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- Websdale David
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- Weisser Constantin
- Whitehead Mark
- Wilkinson Guy
- Wilkinson Michael
- Williams Ifan
- Williams Mark Richard James
- Williams Mike
- Williams Timothy
- Wilson Fergus
- Winn Michael Andreas
- Wislicki Wojciech
- Witek Mariusz
- Wormser Guy
- Wotton Stephen
- Wyllie Kenneth
- Xiang Zhiyu
- Xiao Dong
- Xie Yuehong
- Xing Hongxi
- Xu Ao
- Xu Li
- Xu Menglin
- Xu Qingnian
- Xu Zehua
- Xu Zhirui
- Yang Zhenwei
- Yang Zishuo
- Yao Yuezhe
- Yeomans Lauren Emma
- Yin Hang
- Yu Jiesheng
- Yuan Xuhao
- Yushchenko Oleg
- Zarebski Kristian Alexander
- Zavertyaev Mikhail
- Zeng Ming
- Zhang Dongliang
- Zhang Liming
- Zhang Shunan
- Zhang Wen Chao
- Zhang Yanxi
- Zhelezov Alexey
- Zheng Yangheng
- Zhou Yixiong
- Zhu Xianglei
- Zhukov Valery
- Zonneveld Jennifer Brigitta
- Zucchelli Stefano
- Publication venue
- Springer
- Publication date
- 01/01/2019
- Field of study
International audienceA measurement of the time-dependent CP-violating asymmetry in Bs0ââÏÏ decays is presented. Using a sample of proton-proton collision data corresponding to an integrated luminosity of 5.0 fb^{â}^{1} collected by the LHCb experiment at centre-of-mass energies sâ = 7 TeV in 2011, 8 TeV in 2012 and 13 TeV in 2015 and 2016, a signal yield of around 9000 Bs0ââÏÏ decays is obtained. The CP-violating phase Ïssssâ is measured to be â0.073 ± 0.115(stat) ± 0.027(syst) rad, under the assumption it is independent of the helicity of the ÏÏ decay. In addition, the CP-violating phases of the transverse polarisations under the assumption of CP conservation of the longitudinal phase are measured. The helicity-independent direct CP-violation parameter is also measured, and is found to be |λ| = 0.99 ± 0.05(stat) ± 0.01(syst). In addition, T-odd triple-product asymmetries are measured. The results obtained are consistent with the hypothesis of CP conservation in bâssss transitions. Finally, a limit on the branching fraction of the B0 â ÏÏ decay is determined to be B(B0âÏÏ)<2.7Ă10â8 at 90 % confidence level
Amplitude analysis of the B+âÏ+Ï+Ïâ decay
- Author
- Aaij Roel
- AbellĂĄn Beteta Carlos
- Adeva Bernardo
- Adinolfi Marco
- Aidala Christine Angela
- Ajaltouni Ziad
- Akar Simon
- Albicocco Pietro
- Albrecht Johannes
- Alessio Federico
- Alexander Michael
- Alfonso Albero Alejandro
- Alkhazov Georgy
- Alvarez Cartelle Paula
- Alves Jr Antonio Augusto
- Amato Sandra
- Amhis Yasmine
- An Liupan
- Anderlini Lucio
- Andreassi Guido
- Andreotti Mirco
- Andrews Jason
- Archilli Flavio
- Arnau Romeu Joan
- Artamonov Alexander
- Artuso Marina
- Arzymatov Kenenbek
- Aslanides Elie
- Atzeni Michele
- Audurier Benjamin
- Bachmann Sebastian
- Back John
- Baker Sophie
- Balagura Vladislav
- Baldini Wander
- Baranov Alexander
- Barlow Roger
- Barsuk Sergey
- Barter William
- Bartolini Matteo
- Baryshnikov Fedor
- Batozskaya Varvara
- Batsukh Baasansuren
- Battig Alexander
- Battista Vincenzo
- Bay Aurelio
- Bedeschi Franco
- Bediaga Ignacio
- Beiter Andrew
- Bel Lennaert
- Belavin Vladislav
- Belin Samuel
- Beliy Nikita
- Bellee Violaine
- Belous Konstantin
- Belyaev Ivan
- Ben-Haim Eli
- Bencivenni Giovanni
- Benson Sean
- Beranek Sarah
- Berezhnoy Alexander
- Bernet Roland
- Berninghoff Daniel
- Bertholet Emilie
- Bertolin Alessandro
- Betancourt Christopher
- Betti Federico
- Bettler Marc-Olivier
- Bezshyiko Iaroslava
- Bhasin Srishti
- Bhom Jihyun
- Bieker Martin Stefan
- Bifani Simone
- Billoir Pierre
- Birnkraut Alex
- Bizzeti Andrea
- BjĂžrn Mikkel
- Blago Michele Piero
- Blake Thomas
- Blanc Frederic
- Blusk Steven
- Bobulska Dana
- Bocci Valerio
- Boente Garcia Oscar
- Boettcher Thomas
- Boldyrev Alexey
- Bondar Alexander
- Bondar Nikolay
- Borghi Silvia
- Borisyak Maxim
- Borsato Martino
- Boubdir Meriem
- Bowcock Themistocles
- Bozzi Concezio
- Braun Svende
- Brea Rodriguez Alexandre
- Brodski Michael
- Brodzicka Jolanta
- Brossa Gonzalo Arnau
- Brundu Davide
- Buchanan Emma
- Buonaura Annarita
- Burr Christopher
- Bursche Albert
- Butter Jordy Sebastiaan
- Buytaert Jan
- Byczynski Wiktor
- Cadeddu Sandro
- Cai Hao
- Calabrese Roberto
- Cali Stefano
- Calladine Ryan
- Calvi Marta
- Calvo Gomez Miriam
- Camargo Magalhaes Patricia
- Camboni Alessandro
- Campana Pierluigi
- Campora Perez Daniel Hugo
- Capriotti Lorenzo
- Carbone Angelo
- Carboni Giovanni
- Cardinale Roberta
- Cardini Alessandro
- Carniti Paolo
- Carvalho Akiba Kazuyoshi
- Casais Vidal Adrian
- Casse Gianluigi
- Cattaneo Marco
- Cavallero Giovanni
- Cenci Riccardo
- Chapman Matthew George
- Charles Matthew
- Charpentier Philippe
- Chatzikonstantinidis Georgios
- Chefdeville Maximilien
- Chekalina Viktoriia
- Chen Chen
- Chen Shanzhen
- Chitic Stefan-Gabriel
- Chobanova Veronika
- Chrzaszcz Marcin
- Chubykin Alexsei
- Ciambrone Paolo
- Cid Vidal Xabier
- Ciezarek Gregory
- Cindolo Federico
- Clarke Peter
- Clemencic Marco
- Cliff Harry
- Closier Joel
- Cobbledick John Leslie
- Coco Victor
- Coelho Joao A B
- Cogan Julien
- Cogneras Eric
- Cojocariu Lucian
- Collins Paula
- Colombo Tommaso
- Comerma-Montells Albert
- Contu Andrea
- Coombs George
- Coquereau Samuel
- Corti Gloria
- Costa Sobral Cayo Mar
- Couturier Benjamin
- Cowan Greig
- Craik Daniel Charles
- Crocombe Andrew
- Cruz Torres Melissa Maria
- Currie Robert
- D'Ambrosio Carmelo
- d'Argent Philippe
- Da Silva Cesar Luiz
- Dall'Occo Elena
- Dalseno Jeremy
- Danilina Anna
- Davis Adam
- De Aguiar Francisco Oscar
- De Bruyn Kristof
- De Capua Stefano
- De Cian Michel
- De Miranda Jussara
- De Paula Leandro
- De Serio Marilisa
- De Simone Patrizia
- de Vries Jacco
- Dean Cameron Thomas
- Dean William
- Decamp Daniel
- Del Buono Luigi
- Delaney Blaise
- Dembinski Hans Peter
- Demmer Moritz
- Dendek Adam
- Derkach Denis
- Deschamps Olivier
- Desse Fabrice
- Dettori Francesco
- Dey Biplab
- Di Canto Angelo
- Di Nezza Pasquale
- Didenko Sergey
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- Dordei Francesca
- Dorigo Mirco
- dos Reis Alberto
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- Douglas Lauren
- Dovbnya Anatoliy
- Dreimanis Karlis
- Dufour Laurent
- Dujany Giulio
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- Durham John Matthew
- Dutta Deepanwita
- Dzhelyadin Rustem
- Dziewiecki Michal
- Dziurda Agnieszka
- Dzyuba Alexey
- Easo Sajan
- Egede Ulrik
- Egorychev Victor
- Eidelman Semen
- Eisenhardt Stephan
- Eitschberger Ulrich
- Ek-In Surapat
- Ekelhof Robert
- Eklund Lars
- Ely Scott
- Ene Alexandru
- Escher Stephan
- Esen Sevda
- Evans Timothy
- Falabella Antonio
- Farley Nathanael
- Farry Stephen
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- Fernandez Prieto Antonio
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- Ferreira Rodrigues Fernando
- Ferreres Sole Silvia
- Ferro-Luzzi Massimiliano
- Filippov Sergey
- Fini Rosa Anna
- Fiorini Massimiliano
- Firlej Miroslaw
- Fitzpatrick Conor
- Fiutowski Tomasz
- Fleuret Frederic
- Fontana Marianna
- Fontanelli Flavio
- Forty Roger
- Franco Lima Vinicius
- Franco Sevilla Manuel
- Frank Markus
- Frei Christoph
- Fu Jinlin
- Funk Wolfgang
- FĂ€rber Christian
- FĂ©o Mauricio
- Gabriel Emmy
- Gallas Torreira Abraham
- Galli Domenico
- Gallorini Stefano
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- Gan Yuyue
- Gandelman Miriam
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- Gao Yuanning
- Garcia Martin Luis Miguel
- Garcia Plana Beatriz
- GarcĂa Pardiñas JuliĂĄn
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- Gascon David
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- Gerick David
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- Gershon Timothy
- Gerstel Dawid
- Ghez Philippe
- Gibson Valerie
- GioventĂč Alessandra
- Girard Olivier Göran
- Gironella Gironell Pere
- Giubega Lavinia-Helena
- Gizdov Konstantin
- Gligorov Vladimir
- Golubkov Dmitry
- Golutvin Andrey
- Gomes Alvaro
- Gorelov Igor Vladimirovich
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- Govorkova Ekaterina
- Grabowski Jascha Peter
- Graciani Diaz Ricardo
- Granado Cardoso Luis Alberto
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- Graverini Elena
- Graziani Giacomo
- Grecu Alexandru
- Greim Roman
- Griffith Peter
- Grillo Lucia
- Gruber Lukas
- Gruberg Cazon Barak Raimond
- Gu Chenxi
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- Vazquez Regueiro Pablo
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- Williams Mike
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- Winn Michael Andreas
- Wislicki Wojciech
- Witek Mariusz
- Wormser Guy
- Wotton Stephen
- Wyllie Kenneth
- Xiang Zhiyu
- Xiao Dong
- Xie Yuehong
- Xing Hongxi
- Xu Ao
- Xu Li
- Xu Menglin
- Xu Qingnian
- Xu Zehua
- Xu Zhirui
- Yang Zhenwei
- Yang Zishuo
- Yao Yuezhe
- Yeomans Lauren Emma
- Yin Hang
- Yu Jiesheng
- Yuan Xuhao
- Yushchenko Oleg
- Zarebski Kristian Alexander
- Zavertyaev Mikhail
- Zeng Ming
- Zhang Dongliang
- Zhang Liming
- Zhang Shunan
- Zhang Wen Chao
- Zhang Yanxi
- Zhelezov Alexey
- Zheng Yangheng
- Zhou Yixiong
- Zhu Xianglei
- Zhukov Valery
- Zonneveld Jennifer Brigitta
- Zucchelli Stefano
- Publication venue
- 'American Physical Society (APS)'
- Publication date
- 13/09/2019
- Field of study
International audienceThe results of an amplitude analysis of the charmless three-body decay B+âÏ+Ï+Ï-, in which CP-violation effects are taken into account, are reported. The analysis is based on a data sample corresponding to an integrated luminosity of 3ââfb-1 of pp collisions recorded with the LHCb detector. The most challenging aspect of the analysis is the description of the behavior of the Ï+Ï-ââS-wave contribution, which is achieved by using three complementary approaches based on the isobar model, the K-matrix formalism, and a quasi-model-independent procedure. Additional resonant contributions for all three methods are described using a common isobar model, and include the Ï(770)0, Ï(782) and Ï(1450)0 resonances in the Ï+Ï- P-wave, the f2(1270) resonance in the Ï+Ï- D-wave, and the Ï3(1690)0 resonance in the Ï+Ï- F-wave. Significant CP-violation effects are observed in both S- and D-waves, as well as in the interference between the S- and P-waves. The results from all three approaches agree and provide new insight into the dynamics and the origin of CP-violation effects in B+âÏ+Ï+Ï- decays
Search for the lepton-flavour-violating decays Bs0ââϱΌâ and B0âϱΌâ
- Author
- Aaij Roel
- AbellĂĄn Beteta Carlos
- Adeva Bernardo
- Adinolfi Marco
- Aidala Christine Angela
- Ajaltouni Ziad
- Akar Simon
- Albicocco Pietro
- Albrecht Johannes
- Alessio Federico
- Alexander Michael
- Alfonso Albero Alejandro
- Alkhazov Georgy
- Alvarez Cartelle Paula
- Alves Antonio Augusto
- Amato Sandra
- Amhis Yasmine
- An Liupan
- Anderlini Lucio
- Andreassi Guido
- Andreotti Mirco
- Andrews Jason
- Archilli Flavio
- Arnau Romeu Joan
- Artamonov Alexander
- Artuso Marina
- Arzymatov Kenenbek
- Aslanides Elie
- Atzeni Michele
- Audurier Benjamin
- Bachmann Sebastian
- Back John
- Baker Sophie
- Balagura Vladislav
- Baldini Wander
- Baranov Alexander
- Barlow Roger
- Barsuk Sergey
- Barter William
- Bartolini Matteo
- Baryshnikov Fedor
- Batozskaya Varvara
- Batsukh Baasansuren
- Battig Alexander
- Battista Vincenzo
- Bay Aurelio
- Bedeschi Franco
- Bediaga Ignacio
- Beiter Andrew
- Bel Lennaert
- Belavin Vladislav
- Belin Samuel
- Beliy Nikita
- Bellee Violaine
- Belous Konstantin
- Belyaev Ivan
- Ben-Haim Eli
- Bencivenni Giovanni
- Benson Sean
- Beranek Sarah
- Berezhnoy Alexander
- Bernet Roland
- Berninghoff Daniel
- Bernstein Harris Conan
- Bertholet Emilie
- Bertolin Alessandro
- Betancourt Christopher
- Betti Federico
- Bettler Marc-Olivier
- Bezshyiko Iaroslava
- Bhasin Srishti
- Bhom Jihyun
- Bieker Martin Stefan
- Bifani Simone
- Billoir Pierre
- Birnkraut Alex
- Bizzeti Andrea
- BjĂžrn Mikkel
- Blago Michele Piero
- Blake Thomas
- Blanc Frederic
- Blusk Steven
- Bobulska Dana
- Bocci Valerio
- Boente Garcia Oscar
- Boettcher Thomas
- Bondar Alexander
- Bondar Nikolay
- Borghi Silvia
- Borisyak Maxim
- Borsato Martino
- Boubdir Meriem
- Bowcock Themistocles
- Bozzi Concezio
- Braun Svende
- Brea Rodriguez Alexandre
- Brodski Michael
- Brodzicka Jolanta
- Brossa Gonzalo Arnau
- Brundu Davide
- Buchanan Emma
- Buonaura Annarita
- Burr Christopher
- Bursche Albert
- Butter Jordy Sebastiaan
- Buytaert Jan
- Byczynski Wiktor
- Cadeddu Sandro
- Cai Hao
- Calabrese Roberto
- Cali Stefano
- Calladine Ryan
- Calvi Marta
- Calvo Gomez Miriam
- Camboni Alessandro
- Campana Pierluigi
- Campora Perez Daniel Hugo
- Capriotti Lorenzo
- Carbone Angelo
- Carboni Giovanni
- Cardinale Roberta
- Cardini Alessandro
- Carniti Paolo
- Carvalho Akiba Kazuyoshi
- Casais Vidal Adrian
- Casse Gianluigi
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- Chapman Matthew George
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- Chatzikonstantinidis Georgios
- Chefdeville Maximilien
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- Chen Shanzhen
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- Clarke Peter
- Clemencic Marco
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- Cobbledick John Leslie
- Coco Victor
- Coelho Joao a B
- Cogan Julien
- Cogneras Eric
- Cojocariu Lucian
- Collins Paula
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- Coquereau Samuel
- Corti Gloria
- Costa Sobral Cayo Mar
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- Danilina Anna
- Davis Adam
- de Aguiar Francisco Oscar
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- del Buono Luigi
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- Guz Yury
- Gys Thierry
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- Hadavizadeh Thomas
- Hadjivasiliou Christos
- Haefeli Guido
- Haen Christophe
- Haines Susan
- Hamilton Phoebe Meredith
- Han Qundong
- Han Xiaoxue
- Hancock Thomas Henry
- Hansmann-Menzemer Stephanie
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- Hatch Mark
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- Hilton Martha
- Hopchev Plamen Hristov
- Hu Jiangqiao
- Hu Wenhua
- Huang Wenqian
- Huard Zachary
- Hulsbergen Wouter
- Humair Thibaud
- Hushchyn Mikhail
- Hutchcroft David
- Hynds Daniel
- Ibis Philipp
- Idzik Marek
- Ilten Philip
- Inglessi Alexander
- Inyakin Alexander
- Ivshin Kuzma
- Jacobsson Richard
- Jakobsen Sune
- Jalocha Pawel
- Jans Eddy
- Jashal Brij Kishor
- Jawahery Abolhassan
- Jiang Feng
- John Malcolm
- Johnson Daniel
- Jones Christopher
- Joram Christian
- Jost Beat
- Jurik Nathan
- Kandybei Sergii
- Karacson Matthias
- Kariuki James Mwangi
- Karodia Sarah
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- Kecke Matthieu
- Keizer Floris
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- Kenzie Matthew
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- Kuonen Axel Kevin
- Kvaratskheliya Tengiz
- Lacarrere Daniel
- Lafferty George
- Lai Adriano
- Lancierini Davide
- Lanfranchi Gaia
- Langenbruch Christoph
- Latham Thomas
- Lazzeroni Cristina
- Le Gac Renaud
- Leflat Alexander
- LefĂšvre Regis
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- Leroy Olivier
- Lesiak Tadeusz
- Leverington Blake
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- Witek Mariusz
- Wormser Guy
- Wotton Stephen
- Wyllie Kenneth
- Xiang Zhiyu
- Xiao Dong
- Xie Yuehong
- Xing Hongxi
- Xu Ao
- Xu Li
- Xu Menglin
- Xu Qingnian
- Xu Zehua
- Xu Zhirui
- Yang Zhenwei
- Yang Zishuo
- Yao Yuezhe
- Yeomans Lauren Emma
- Yin Hang
- Yu Jiesheng
- Yuan Xuhao
- Yushchenko Oleg
- Zarebski Kristian Alexander
- Zavertyaev Mikhail
- Zeng Ming
- Zhang Dongliang
- Zhang Liming
- Zhang Shunan
- Zhang Wen Chao
- Zhang Yanxi
- Zhelezov Alexey
- Zheng Yangheng
- Zhou Yixiong
- Zhu Xianglei
- Zhukov Valery
- Zonneveld Jennifer Brigitta
- Zucchelli Stefano
- Publication venue
- HAL CCSD
- Publication date
- 01/01/2019
- Field of study
International audienceResults are reported from a search for the rare decays Bs0âϱΌâ and B0âϱΌâ, where the Ï lepton is reconstructed in the channel Ï-âÏ-Ï+Ï-ÎœÏ. These processes are effectively forbidden in the standard model, but they can potentially occur at detectable rates in models of new physics that can induce lepton-flavor-violating decays. The search is based on a data sample corresponding to 3ââfb-1 of proton-proton collisions recorded by the LHCb experiment in 2011 and 2012. The event yields observed in the signal regions for both processes are consistent with the expected standard model backgrounds. Because of the limited mass resolution arising from the undetected Ï neutrino, the Bs0 and B0 signal regions are highly overlapping. Assuming no contribution from B0âϱΌâ, the upper limit B(Bs0âϱΌâ)<4.2Ă10-5 is obtained at 95% confidence level. If no contribution from Bs0âϱΌâ is assumed, a limit of B(B0âϱΌâ)<1.4Ă10-5 is obtained at 95% confidence level. These results represent the first limit on B(Bs0âϱΌâ) and the most stringent limit on B(B0âϱΌâ)
Measurement of the Îb0ââJ/ÏÎ angular distribution and the Îb0â polarisation in pp collisions
- Author
- Aaij Roel
- AbellĂĄn Beteta Carlos
- Ackernley Thomas
- Adeva Bernardo
- Adinolfi Marco
- Afsharnia Hossein
- Aidala Christine Angela
- Aiola Salvatore
- Ajaltouni Ziad
- Akar Simon
- Albrecht Johannes
- Alessio Federico
- Alexander Michael
- Alfonso Albero Alejandro
- Alkhazov Georgy
- Alvarez Cartelle Paula
- Alves Jr Antonio Augusto
- Amato Sandra
- Amhis Yasmine
- An Liupan
- Anderlini Lucio
- Andreassi Guido
- Andreianov Aleksei
- Andreotti Mirco
- Archilli Flavio
- Artamonov Alexander
- Artuso Marina
- Arzymatov Kenenbek
- Aslanides Elie
- Atzeni Michele
- Audurier Benjamin
- Bachmann Sebastian
- Back John
- Baker Sophie
- Balagura Vladislav
- Baldini Wander
- Baptista Leite Juan
- Barlow Roger
- Barsuk Sergey
- Barter William
- Bartolini Matteo
- Baryshnikov Fedor
- Basels Jan-Marc
- Bassi Giovanni
- Batozskaya Varvara
- Batsukh Baasansuren
- Battig Alexander
- Bay Aurelio
- Becker Maik
- Bedeschi Franco
- Bediaga Ignacio
- Beiter Andrew
- Belavin Vladislav
- Belin Samuel
- Bellee Violaine
- Belous Konstantin
- Belyaev Ivan
- Ben-Haim Eli
- Bencivenni Giovanni
- Benson Sean
- Berezhnoy Alexander
- Bernet Roland
- Berninghoff Daniel
- Bernstein Harris Conan
- Bertella Claudia
- Bertholet Emilie
- Bertolin Alessandro
- Betancourt Christopher
- Betti Federico
- Bettler Marc-Olivier
- Bezshyiko Iaroslava
- Bhasin Srishti
- Bhom Jihyun
- Bieker Martin Stefan
- Bifani Simone
- Billoir Pierre
- Bizzeti Andrea
- BjĂžrn Mikkel
- Blago Michele Piero
- Blake Thomas
- Blanc Frederic
- Blusk Steven
- Bobulska Dana
- Bocci Valerio
- Boente Garcia Oscar
- Boettcher Thomas
- Boldyrev Alexey
- Bondar Alexander
- Bondar Nikolay
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- Cadeddu Sandro
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- Zavertyaev Mikhail
- Zdybal Milosz
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- Zhang Yanxi
- Zhelezov Alexey
- Zheng Yangheng
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- Zonneveld Jennifer Brigitta
- Zucchelli Stefano
- Zunica Gianluca
- Publication venue
- 'Springer Science and Business Media LLC'
- Publication date
- 01/01/2020
- Field of study
International audienceThis paper presents an analysis of the Îb0ââ J/ÏÎ angular distribution and the transverse production polarisation of Îb0â baryons in proton-proton collisions at centre-of-mass energies of 7, 8 and 13 TeV. The measurements are performed using data corresponding to an integrated luminosity of 4.9 fbâ1, collected with the LHCb experiment. The polarisation is determined in a fiducial region of Îb0â transverse momentum and pseudorapidity of 1 < pTâ< 20 GeV/c and 2 < η < 5, respectively. The data are consistent with Îb0â baryons being produced unpolarised in this region. The parity-violating asymmetry parameter of the Î â pÏâ decay is also determined from the data and its value is found to be consistent with a recent measurement by the BES III collaboration.[graphic not available: see fulltext
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