A new algorithm for identifying the flavour of B-s(0) mesons at LHCb
2016
- Roel Aaij
- C. Abellan Beteta
- Bernardo Adeva
- Marco Adinolfi
- A. A. Affolder
- Ziad Ajaltouni
- Simon Akar
- Johannes Albrecht
- Federico Alessio
- Michael Alexander
- Suvayu Ali
- Georgy Alkhazov
- P. Alvarez Cartelle
- Antonio Augusto Alves Jr
- Sandra Amato
- S. Amerio
- Yasmine Amhis
- Liupan An
- L Anderlini
- Guido Andreassi
- Mirco Andreotti
- J. E. Andrews
- R. B. Appleby
- O. Aquines Gutierrez
- Flavio Archilli
- Philippe d'Argent
- A Artamonov
- Marina Artuso
- Elie Aslanides
- Giulio Auriemma
- Marouen Baalouch
- Sebastian Bachmann
- J. J. Back
- Alexey Badalov
- Clarissa Baesso
- Wander Baldini
- Roger Barlow
- Colin Barschel
- Sergey Barsuk
- William Barter
- V. Batozskaya
- Vincenzo Battista
- A. Bay
- Leo Beaucourt
- John Beddow
- F. Bedeschi
- Ignacio Bediaga
- Lennaert Bel
- Violaine Bellee
- Nicoletta Belloli
- I. Belyaev
- E. Ben Haim
- Giovanni Bencivenni
- Sean Benson
- Jack Benton
- Alexander Berezhnoy
- Roland Bernet
- A. Bertolin
- F. Betti
- M.-O. Bettler
- M van Beuzekom
- Simone Bifani
- P. Billoir
- T. Bird
- Alex Birnkraut
- A Bizzeti
- Thomas Blake
- F. Blanc
- Johan Blouw
- Steven Blusk
- Valerio Bocci
- A. E. Bondar
- Nikolay Bondar
- W. Bonivento
- Alessio Borgheresi
- Silvia Borghi
- Maxim Borisyak
- Martino Borsato
- T. J. V. Bowcock
- Espen Eie Bowen
- C. Bozzi
- Svende Braun
- Markward Britsch
- Thomas Britton
- Jolanta Brodzicka
- N. H. Brook
- Emma Buchanan
- C. Burr
- Albert Bursche
- Jan Buytaert
- Sandro Cadeddu
- Roberto Calabrese
- Marta Calvi
- M. Calvo Gomez
- P. Campana
- D. Campora Perez
- Lorenzo Capriotti
- Angelo Carbone
- G. Carboni
- R. Cardinale
- Alessandro Cardini
- Paolo Carniti
- Laurence Carson
- K. Carvalho Akiba
- Gianluigi Casse
- Lorenzo Cassina
- L. Castillo Garcia
- Marco Cattaneo
- Ch. Cauet
- Giovanni Cavallero
- R. Cenci
- Matthew Charles
- Ph. Charpentier
- Georgios Chatzikonstantinidis
- Maximilien Chefdeville
- Shanzhen Chen
- Shu Faye Cheung
- N. Chiapolini
- M. Chrzaszcz
- X. Cid Vidal
- G. Ciezarek
- P. E. L. Clarke
- Marco Clemencic
- H. V. Cliff
- Joel Closier
- Victor Coco
- Julien Cogan
- Eric Cogneras
- Violetta Cogoni
- Lucian Cojocariu
- Gianmaria Collazuol
- Paula Collins
- Albert Comerma Montells
- A. Contu
- A. Cook
- M. Coombes
- S. Coquereau
- Gloria Corti
- Marco Corvo
- Benjamin Couturier
- Glen Cowan
- Daniel Charles Craik
- Andrew Crocombe
- M. Cruz Torres
- Samuel Cunliffe
- R Currie
- Carmelo DAmbrosio
- Elena Dall'Occo
- Jeremy Dalseno
- P. N. Y. David
- Adam Davis
- O. De Aguiar Francisco
- K. De Bruyn
- S. De Capua
- M. De Cian
- J.M. de Miranda
- L. De Paula
- P De Simone
- C. T. Dean
- D. Decamp
- Mirko Deckenhoff
- L. Del Buono
- Nicolas Déléage
- Moritz Demmer
- Denis Derkach
- Olivier Deschamps
- Francesco Dettori
- B. Dey
- A. Di Canto
- F. Di Ruscio
- Hans Dijkstra
- S. Donleavy
- F. Dordei
- Marco Dorigo
- A. Dosil Suárez
- Anatoliy Dovbnya
- Karlis Dreimanis
- Laurent Dufour
- Giulio Dujany
- Kevin Dungs
- Paolo Durante
- Rustem Dzhelyadin
- Agnieszka Dziurda
- Alexey Dzyuba
- Sajan Easo
- Ulrik Egede
- Victor Egorychev
- S. Eidelman
- Stephan Eisenhardt
- Ulrich Eitschberger
- Robert Ekelhof
- Lars Eklund
- I. El Rifai
- Ch. Elsasser
- S. Ely
- Sevda Esen
- H.M. Evans
- Timothy Evans
- Antonio Falabella
- Christian Färber
- Nathanael Farley
- Stephen Farry
- Robert Fay
- Davide Fazzini
- Dianne Ferguson
- V. Fernandez Albor
- F. Ferrari
- F Ferreira Rodrigues
- M. Ferro-Luzzi
- Sergey Filippov
- Marco Fiore
- M. Fiorini
- Miroslaw Firlej
- Conor Fitzpatrick
- Tomasz Fiutowski
- F. Fleuret
- Klaus Fohl
- Philip Fol
- Marianna Fontana
- F. Fontanelli
- Dean Charles Forshaw
- R. Forty
- M. J. Frank
- Christoph Frei
- M. Frosini
- Jinlin Fu
- Emiliano Furfaro
- A. Gallas Torreira
- Domenico Galli
- S. Gallorini
- Silvia Gambetta
- Miriam Gandelman
- Paolo Gandini
- Y. S. Gao
- J. García Pardiñas
- J. Garra Tico
- L. Garrido
- David Gascon
- C. Gaspar
- Laura Gavardi
- Giulio Gazzoni
- David Gerick
- Evelina Gersabeck
- Marco Gersabeck
- T. J. Gershon
- Ph. Ghez
- Sebastiana Gianì
- Valerie Gibson
- Olivier Göran Girard
- Lavinia-Helena Giubega
- V. V. Gligorov
- Carla Göbel
- D. Golubkov
- A. Golutvin
- A. Gomes
- Claudio Gotti
- M. Grabalosa Gándara
- R. Graciani Diaz
- L. A. Granado Cardoso
- E. Grauges
- Elena Graverini
- G Graziani
- Alexandru Grecu
- Peter Griffith
- Lucia Grillo
- O. Grünberg
- B. Gui
- Evgeny Gushchin
- Yu. Guz
- T. Gys
- T. Hadavizadeh
- Christos Hadjivasiliou
- G. Haefeli
- Christophe Haen
- Susan Haines
- Samuel Hall
- B. Hamilton
- X. Han
- Stephanie Hansmann-Menzemer
- Neville Harnew
- S. T. Harnew
- J. Harrison
- J. He
- Timothy Head
- V. Heijne
- Arno Heister
- Karol Hennessy
- Pierre Henrard
- L. Henry
- J. A. Hernando Morata
- E. van Herwijnen
- M. Heß
- Adlène Hicheur
- Donal Hill
- M. Hoballah
- Christoph Hombach
- W.D. Hulsbergen
- Thibaud Humair
- Mikhail Hushchyn
- Nazim Hussain
- D. E. Hutchcroft
- Daniel Hynds
- Marek Idzik
- Philip Ilten
- R. Jacobsson
- Andreas Jaeger
- J. Jalocha
- Eddy Jans
- A. Jawahery
- Malcolm John
- Daniel Johnson
- C. R. Jones
- Christian Joram
- Beat Jost
- Nathan Jurik
- Sergii Kandybei
- Walaa Kanso
- Matthias Karacson
- T. M. Karbach
- Sarah Karodia
- Matthieu Kecke
- Matthew Kelsey
- I. R. Kenyon
- Matthew Kenzie
- Tjeerd Ketel
- Egor Khairullin
- Basem Khanji
- Chitsanu Khurewathanakul
- Thomas Kirn
- Suzanne Klaver
- Konrad Klimaszewski
- O. Kochebina
- Michael Kolpin
- Ilya Komarov
- Rose Koopman
- Patrick Koppenburg
- Mohamad Kozeiha
- L. Kravchuk
- K. Kreplin
- Michal Kreps
- G. Krocker
- Pavel Krokovny
- Florian Kruse
- W. Krzemień
- Wojciech Kucewicz
- Marcin Kucharczyk
- Vasily Kudryavtsev
- Axel Kevin Kuonen
- Krzysztof Kurek
- Tengiz Kvaratskheliya
- Daniel Lacarrere
- George Lafferty
- A. Lai
- D. Lambert
- G. Lanfranchi
- Christoph Langenbruch
- Benedikt Langhans
- Thomas Latham
- Cristina Lazzeroni
- R. Le Gac
- J. van Leerdam
- J. P. Lees
- R. Lefevre
- A. Leflat
- Jacques Lefrançois
- E. Lemos Cid
- Olivier Leroy
- Tadeusz Lesiak
- Blake Leverington
- Yongjian Li
- Tatiana Likhomanenko
- M. Liles
- Rolf Lindner
- Christian Linn
- Federica Lionetto
- Bingxuan Liu
- Xia-Ji Liu
- David Loh
- Iain Longstaff
- J. H. Lopes
- Donatella Lucchesi
- M. Lucio Martinez
- Haofei Luo
- A. Lupato
- E. Luppi
- Oliver Lupton
- Nicola Lusardi
- A. Lusiani
- Frederic Machefert
- F Maciuc
- O. Maev
- Kevin Maguire
- Sneha Malde
- Alexander Malinin
- G. Manca
- G. Mancinelli
- Phillip L. Manning
- Alessandro Mapelli
- Jan Maratas
- J. F. Marchand
- Umberto Marconi
- C. Marin Benito
- Pietro Marino
- J. Marks
- Giuseppe Martellotti
- Morgan Martin
- Maurizio Martinelli
- D. Martinez Santos
- F. Martinez Vidal
- D. Martins Tostes
- Laure Marie Massacrier
- Andre Massafferri
- Rosen Matev
- Abhijit Mathad
- Zoltan Mathe
- Clara Matteuzzi
- Andrea Mauri
- Brice Maurin
- A. Mazurov
- Michael McCann
- James McCarthy
- Andrew McNab
- R. McNulty
- B. T. Meadows
- Frank Meier
- M. Meissner
- Dmytro Melnychuk
- Marcel Merk
- A. Merli
- E. Michielin
- Diego Alejandro Milanes
- M.-N. Minard
- D. S. Mitzel
- J. Molina Rodriguez
- I. A. Monroy
- S. Monteil
- M. Morandin
- Piotr Morawski
- Alessandro Mordà
- M. J. Morello
- Jakub Moron
- A. B. Morris
- Raymond Mountain
- F. Muheim
- Dominik Müller
- Janine Müller
- K. Müller
- Vanessa Müller
- M Mussini
- B. Muster
- P. Naik
- Tatsuya Nakada
- Raja Nandakumar
- Anita Nandi
- I. Nasteva
- Matthew Needham
- N. Neri
- Sebastian Neubert
- Niko Neufeld
- Max Neuner
- A. D. Nguyen
- Chung Nguyen-Mau
- V. Niess
- Simon Nieswand
- Ramon Niet
- N. Nikitin
- Thomas Nikodem
- Alexey Novoselov
- D. P. O’Hanlon
- Agnieszka Oblakowska-Mucha
- V. Obraztsov
- Stephen Ogilvy
- O. Okhrimenko
- R. Oldeman
- C. J. G. Onderwater
- B. Osorio Rodrigues
- J. M. Otalora Goicochea
- Adam Otto
- P. Owen
- A. Oyanguren
- A. Palano
- F. Palombo
- Matteo Palutan
- J. Panman
- A. Papanestis
- Marco Pappagallo
- Luciano Pappalardo
- Cheryl Pappenheimer
- W. Parker
- Christopher Parkes
- Giovanni Passaleva
- Girish Patel
- M. Patel
- C. Patrignani
- Alex Pearce
- Antonio Pellegrino
- Gianni Penso
- M. Pepe-Altarelli
- Stefano Perazzini
- Pascal Perret
- Luca Pescatore
- K. Petridis
- A Petrolini
- Marco Petruzzo
- E. Picatoste Olloqui
- B. Pietrzyk
- Malgorzata Pikies
- D. Pinci
- Alessandro Pistone
- Alessio Piucci
- S. Playfer
- M. Plo Casasus
- Tuomas Poikela
- Francesco Polci
- Anton Poluektov
- Ivan Polyakov
- Erica Polycarpo
- A. V. Popov
- Dmitry Popov
- Bogdan Popovici
- Cédric Potterat
- Eugenia Price
- J. D. Price
- J. Prisciandaro
- Adrian Pritchard
- Claire Prouve
- Valery Pugatch
- A. Puig Navarro
- G. Punzi
- W. Qian
- Renato Quagliani
- Bartolomiej Rachwal
- J. H. Rademacker
- M. Rama
- M. Ramos Pernas
- Murilo Rangel
- Iurii Raniuk
- G. Raven
- F. Redi
- Stefanie Reichert
- A.C. dos Reis
- Victor Renaudin
- S. Ricciardi
- Sophie Richards
- Mariana Rihl
- K. Rinnert
- V. Rives Molina
- P. Robbe
- Ana Bárbara Rodrigues
- E. Rodrigues
- J. A. Rodriguez Lopez
- P. Rodriguez Perez
- Alexey Rogozhnikov
- Stefan Roiser
- V. Romanovsky
- A. Romero Vidal
- J. W. Ronayne
- M. Rotondo
- T. Ruf
- P. Ruiz Valls
- J. J. Saborido Silva
- Naylya Sagidova
- Biagio Saitta
- V. Salustino Guimaraes
- C. Sanchez Mayordomo
- B. Sanmartin Sedes
- Roberta Santacesaria
- C. Santamarina Rios
- Marco Santimaria
- Emanuele Santovetti
- Alessio Sarti
- C. Satriano
- A. Satta
- D. M. Saunders
- Darya Savrina
- S. Schael
- Manuel Schiller
- Heinrich Schindler
- Maximilian Schlupp
- Michael Schmelling
- Timon Schmelzer
- B. Schmidt
- O. Schneider
- Andreas Schopper
- Maxime Schubiger
- M. H. Schune
- Rainer Schwemmer
- Barbara Sciascia
- Adalberto Sciubba
- Alexander Semennikov
- N. Serra
- Justine Serrano
- Lorenzo Sestini
- Paul Seyfert
- Mikhail Shapkin
- Illya Shapoval
- Yury Shcheglov
- Tara Shears
- Lev Shekhtman
- V. Shevchenko
- Alexander Shires
- Benedetto Gianluca Siddi
- R. Silva Coutinho
- L. Silva de Oliveira
- Gabriele Simi
- Marek Sirendi
- Nicola Skidmore
- Tomasz Skwarnicki
- Eluned Smith
- Iwan Thomas Smith
- James Smith
- M. J. Smith
- H.L. Snoek
- Michael Sokoloff
- F. J. P. Soler
- F. Soomro
- D. Souza
- B. Souza De Paula
- B. Spaan
- P. Spradlin
- Srikanth Sridharan
- Federico Stagni
- Marian Stahl
- S. Stahl
- S. Stefkova
- Olaf Steinkamp
- Oleg Stenyakin
- Scott Stevenson
- Sabin Stoica
- Sheldon Stone
- B. Storaci
- S. Stracka
- Mihai Straticiuc
- Ulrich Straumann
- Liang Sun
- William Sutcliffe
- Krzysztof Swientek
- S. Swientek
- Vasileios Syropoulos
- M. Szczekowski
- Tomasz Szumlak
- S. T’Jampens
- Andrey Tayduganov
- Tobias Tekampe
- Giulia Tellarini
- Frederic Teubert
- C. Thomas
- E. Thomas
- J. van Tilburg
- V. Tisserand
- Mark Tobin
- Jacob Todd
- Siim Tolk
- Luca Tomassetti
- D. Tonelli
- Stig Topp-Joergensen
- Edwige Tournefier
- S. Tourneur
- Karim Trabelsi
- Murdo Traill
- M. T. Tran
- Marco Tresch
- Ana Trisovic
- Andrei Tsaregorodtsev
- Panagiotis Tsopelas
- Niels Tuning
- Artur Ukleja
- Andrey Ustyuzhanin
- U. Uwer
- Claudia Vacca
- V. Vagnoni
- G Valenti
- Alexis Vallier
- R Vázquez Gómez
- P. Vazquez Regueiro
- C. Vázquez Sierra
- S. Vecchi
- M. Van Veghel
- J. J. Velthuis
- Michele Veltri
- Giovanni Veneziano
- Mika Vesterinen
- Benoit Viaud
- D. Vieira
- M. Vieites Diaz
- Xavier Vilasis-Cardona
- Vladimir Volkov
- Achim Vollhardt
- D. Voong
- A. Vorobyev
- Vitaly Vorobyev
- Christian Voß
- J. A. De Vries
- R. Waldi
- Charlotte Wallace
- Ronan Wallace
- John Walsh
- J. C. Wang
- D.R. Ward
- N. K. Watson
- David Websdale
- Andreas Weiden
- Mark Whitehead
- Jean Wicht
- G R Wilkinson
- Michael Wilkinson
- Mark Richard James Williams
- M. P. Williams
- T. Williams
- Ff Wilson
- Jack Wimberley
- Julian Wishahi
- Wojciech Wislicki
- Mariusz Witek
- G. Wormser
- S.A. Wotton
- Kenneth Wraight
- S. Wright
- Kenneth Wyllie
- Y. H. Xie
- Zhirui Xu
- Z. Yang
- Jiesheng Yu
- Xuhao Yuan
- Oleg Yushchenko
- M. Zangoli
- Mikhail Zavertyaev
- Lei Zhang
- Yan Zhang
- Alexey Zhelezov
- Anatoly Zhokhov
- L. Zhong
- V. Zhukov
- S. Zucchelli
A new algorithm for the determination of the initial flavour of B0s mesons is presented. The algorithm is based on two neural networks and exploits the b hadron production mechanism at a hadron collider. The first network is trained to select charged kaons produced in association with the B0s meson. The second network combines the kaon charges to assign the B0s flavour and estimates the probability of a wrong assignment. The algorithm is calibrated using data corresponding to an integrated luminosity of 3 fb−1 collected by the LHCb experiment in proton-proton collisions at 7 and 8 TeV centre-of-mass energies. The calibration is performed in two ways: by resolving the B0s-B¯0s flavour oscillations in B0s→D−sπ+ decays, and by analysing flavour-specific B∗s2(5840)0→B+K− decays. The tagging power measured in B0s→D−sπ+ decays is found to be (1.80±0.19(stat)±0.18(syst))\%, which is an improvement of about 50\% compared to a similar algorithm previously used in the LHCb experiment.
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