Observation of the decay Bs 0 → ηc ϕ and evidence for Bs 0 → ηc π + π −
2017
- Roel Aaij
- Bernardo Adeva
- Ziad Ajaltouni
- Simon Akar
- 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
- F. Archilli
- Philippe d'Argent
- J. Arnau Romeu
- A Artamonov
- Marina Artuso
- Elie Aslanides
- Giulio Auriemma
- Marouen Baalouch
- Igor Babuschkin
- Sebastian Bachmann
- J. J. Back
- Alexey Badalov
- Clarissa Baesso
- Stephen Baker
- V. Balagura
- W Baldini
- Rj Barlow
- Colin Barschel
- Sergey Barsuk
- William Barter
- F. Baryshnikov
- Mateusz Baszczyk
- V. Batozskaya
- Baasansuren Batsukh
- Vincenzo Battista
- A. Bay
- Leo Beaucourt
- John Beddow
- F. Bedeschi
- Ignacio Bediaga
- Lennaert Bel
- Violaine Bellee
- Nicoletta Belloli
- Konstantin Belous
- I. Belyaev
- E. Ben-Haim
- Giovanni Bencivenni
- Sean Benson
- Alexander Berezhnoy
- Roland Bernet
- A. Bertolin
- C. Betancourt
- F. Betti
- M.-O. Bettler
- M van Beuzekom
- Ia. Bezshyiko
- Simone Bifani
- Pierre Billoir
- T. Bird
- Alex Birnkraut
- Alexandre Bitadze
- Andrea Bizzeti
- Thomas Blake
- F. Blanc
- Johan Blouw
- Steven Blusk
- Valerio Bocci
- Thomas Boettcher
- A. Bondar
- Nikolay Bondar
- W. Bonivento
- Igor Bordyuzhin
- Alessio Borgheresi
- Silvia Borghi
- Maxim Borisyak
- Martino Borsato
- Francesco Bossu
- Meriem Boubdir
- T. J. V. Bowcock
- Espen Eie Bowen
- C. Bozzi
- Markward Britsch
- Thomas Britton
- Jolanta Brodzicka
- Emma Buchanan
- C. Burr
- Albert Bursche
- Jan Buytaert
- Sandro Cadeddu
- Roberto Calabrese
- Marta Calvi
- M. Calvo Gomez
- Alessandro Camboni
- P. Campana
- D. Campora Perez
- Lorenzo Capriotti
- Angelo Carbone
- G. Carboni
- Roberta Cardinale
- A. Cardini
- Paolo Carniti
- K Carvalho Akiba
- Gianluigi Casse
- Lorenzo Cassina
- L. Castillo Garcia
- Marco Cattaneo
- Giovanni Cavallero
- R. Cenci
- David Chamont
- M. Charles
- Ph. Charpentier
- Georgios Chatzikonstantinidis
- M. Chefdeville
- Shu Faye Cheung
- Veronika Chobanova
- 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
- Paula Collins
- Albert Comerma Montells
- A. Contu
- A. Cook
- George Coombs
- Samuel Coquereau
- Gloria Corti
- Marco Corvo
- C. M. Costa Sobral
- Benjamin Couturier
- Glen Cowan
- Daniel Charles Craik
- Andrew Crocombe
- M. Cruz Torres
- Samuel Cunliffe
- R Currie
- Carmelo DAmbrosio
- F. Da Cunha Marinho
- Elena Dall'Occo
- Jeremy Dalseno
- P. N. Y. David
- Adam Davis
- K. de Bruyn
- S. De Capua
- M. De Cian
- J.M. de Miranda
- L. De Paula
- M. De Serio
- P De Simone
- C. T. Dean
- D. Decamp
- Mirko Deckenhoff
- L. Del-Buono
- Moritz Demmer
- Adam Dendek
- Denis Derkach
- O. Deschamps
- Francesco Dettori
- B. Dey
- A. Di Canto
- F. Dordei
- Marco Dorigo
- A. Dosil Suárez
- Anatoliy Dovbnya
- Karlis Dreimanis
- Giulio Dujany
- Kevin Dungs
- Paolo Durante
- Rustem Dzhelyadin
- A. Dziurda
- Alexey Dzyuba
- Nicolas Déléage
- S. Easo
- M. Ebert
- Ulrik Egede
- Victor Egorychev
- S.I. Eidelman
- Stephan Eisenhardt
- Ulrich Eitschberger
- Robert Ekelhof
- Lars Eklund
- S. Ely
- Sevda Esen
- H.M. Evans
- Timothy Evans
- Antonio Falabella
- Nathanael Farley
- Stephen Farry
- Robert Fay
- Davide Fazzini
- Dianne Ferguson
- A. Fernandez Prieto
- F. Ferrari
- F. Ferreira Rodrigues
- M Ferro-Luzzi
- Sergey Filippov
- Rosa Anna Fini
- Marco Fiore
- M. Fiorini
- Miroslaw Firlej
- Conor Fitzpatrick
- Tomasz Fiutowski
- F. Fleuret
- Klaus Fohl
- M. Fontana
- Flavio Fontanelli
- Dean Charles Forshaw
- R. Forty
- V. Franco Lima
- M. J. Frank
- Christoph Frei
- Jinlin Fu
- W. Funk
- Emiliano Furfaro
- Christian Färber
- A. Gallas Torreira
- Domenico Galli
- S. Gallorini
- Silvia Gambetta
- Miriam Gandelman
- Paolo Gandini
- Y. S. Gao
- L. M. Garcia Martin
- J. García Pardiñas
- J. Garra Tico
- L. Garrido
- Philip John Garsed
- 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
- Konstantin Gizdov
- Vladimir Gligorov
- D. Golubkov
- A. Golutvin
- A. Gomes
- Igor Vladimirovich Gorelov
- Claudio Gotti
- R. Graciani Diaz
- L. A. Granado Cardoso
- E. Grauges
- Elena Graverini
- G Graziani
- Alexandru Grecu
- Lucia Grillo
- B. R. Gruberg Cazon
- O. Grünberg
- E. Gushchin
- Yu Guz
- T. Gys
- Carla Gobel
- T. Hadavizadeh
- C. Hadjivasiliou
- G. Haefeli
- Christophe Haen
- Susan Haines
- B. Hamilton
- X. Han
- Stephanie Hansmann-Menzemer
- Neville Harnew
- S. T. Harnew
- J. Harrison
- Mark Hatch
- Timothy Head
- Arno Heister
- Karol Hennessy
- Pierre Henrard
- E. van Herwijnen
- Miriam Heß
- Adlène Hicheur
- Donal Hill
- Christoph Hombach
- H. Hopchev
- W.D. Hulsbergen
- Thibaud Humair
- Mikhail Hushchyn
- D. E. Hutchcroft
- Marek Idzik
- Philip Ilten
- R. Jacobsson
- Andreas Jaeger
- J. Jalocha
- Eddy Jans
- A. Jawahery
- Malcolm John
- C. R. Jones
- Christian Joram
- Beat Jost
- N. Jurik
- Sergii Kandybei
- Matthias Karacson
- James Mwangi Kariuki
- Sarah Karodia
- Matthieu Kecke
- Matthew Kelsey
- Matthew Kenzie
- T. Ketel
- Egor Khairullin
- Basem Khanji
- Chitsanu Khurewathanakul
- Thomas Kirn
- Suzanne Klaver
- Konrad Klimaszewski
- Serhii Koliiev
- Michael Kolpin
- Ilya Komarov
- Rose Koopman
- P Koppenburg
- Alena Kosmyntseva
- Anastasiia Kozachuk
- Mohamad Kozeiha
- L. Kravchuk
- K. Kreplin
- Michal Kreps
- Pavel Krokovny
- Florian Kruse
- W. Krzemień
- Wojciech Kucewicz
- Marcin Kucharczyk
- Vasily Kudryavtsev
- Axel Kevin Kuonen
- Krzysztof Kurek
- Tengiz Kvaratskheliya
- Daniel Lacarrere
- G. D. Lafferty
- A. Lai
- G. Lanfranchi
- Christoph Langenbruch
- T. E. Latham
- Cristina Lazzeroni
- R. Le Gac
- J. van Leerdam
- A. Leflat
- Jacques Lefrançois
- R. Lefevre
- Florian Lemaitre
- E. Lemos Cid
- Olivier Leroy
- Tadeusz Lesiak
- Blake Leverington
- Tatiana Likhomanenko
- Rolf Lindner
- Christian Linn
- Federica Lionetto
- David Loh
- Iain Longstaff
- J. H. Lopes
- Donatella Lucchesi
- M. Lucio Martinez
- Haofei Luo
- A. Lupato
- E. Luppi
- Oliver Lupton
- A. Lusiani
- X. R. Lyu
- Frederic Machefert
- F Maciuc
- O. Maev
- Kevin Maguire
- Sneha Malde
- Alexander Malinin
- Timofei Maltsev
- G. Manca
- Giampiero Mancinelli
- Phillip L. Manning
- J Maratas
- Jean François Marchand
- Umberto Marconi
- C. Marin Benito
- M. Marinangeli
- Pietro Marino
- J. Marks
- Giuseppe Martellotti
- Morgan Martin
- Maurizio Martinelli
- D. Martinez Santos
- F. Martinez-Vidal
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- L. M. Massacrier
- Andre Massafferri
- Rosen Matev
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- Zoltan Mathe
- Clara Matteuzzi
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- E. Maurice
- Brice Maurin
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- R. McNulty
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- Frank Meier
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- A. Merli
- E. Michielin
- Diego Alejandro Milanes
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- J. Molinâ Rodriguez
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- M. Morandin
- Piotr Morawski
- Alessandro Mordà
- M. J. Morello
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- A. B. Morris
- Raymond Mountain
- F. Muheim
- M Mussini
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- K. Müller
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- D. P. O’Hanlon
- Agnieszka Oblakowska-Mucha
- V. Obraztsov
- Stephen Ogilvy
- R. Oldeman
- C.J.G. Onderwater
- J. M. Otalora Goicochea
- Adam Otto
- Patrick Owen
- A. Oyanguren
- Preema Rennee Pais
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- M. Patel
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- S. Playfer
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- Anton Poluektov
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- Mark Tobin
- Siim Tolk
- Luca Tomassetti
- D. Tonelli
- Stig Topp-Joergensen
- Francis Toriello
- E. Tournefier
- S. Tourneur
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- Murdo Traill
- M. T. Tran
- Marco Tresch
- Ana Trisovic
- Andrei Tsaregorodtsev
- Panagiotis Tsopelas
- Alison Tully
- N Tuning
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- Andrey Ustyuzhanin
- U. Uwer
- Claudia Vacca
- V. Vagnoni
- Andrea Valassi
- Sebastien Valat
- G Valenti
- R Vázquez Gómez
- P. Vazquez Regueiro
- S. Vecchi
- M. Van Veghel
- J. J. Velthuis
- Michele Veltri
- Giovanni Veneziano
- Aravindhan Venkateswaran
- Maxime Vernet
- Mika Vesterinen
- J. V. Viana Barbosa
- Benoit Viaud
- Daniel Vieira
- M. Vieites Diaz
- Harald Viemann
- Xavier Vilasis-Cardona
- Marcela Vitti
- Vladimir Volkov
- Achim Vollhardt
- Balazs Voneki
- A. Vorobyev
- Vitaly Vorobyev
- Christian Voß
- C. Vázquez Sierra
- R. Waldi
- Charlotte Wallace
- Ronan Wallace
- John Walsh
- D.R. Ward
- Heather Mckenzie Wark
- N. K. Watson
- David Websdale
- Andreas Weiden
- Mark Whitehead
- Jean Wicht
- G R Wilkinson
- Michael Wilkinson
- Mark Williams
- M. P. Williams
- Ff Wilson
- Jack Wimberley
- Julian Wishahi
- Wojciech Wislicki
- Mariusz Witek
- G. Wormser
- S.A. Wotton
- Kenneth Wraight
- Kenneth Wyllie
- Y. H. Xie
- Z. Xing
- Z. Yang
- Yuezhe Yao
- Hang Yin
- Xuhao Yuan
- Oleg Yushchenko
- Kristian Alexander Zarebski
- Mikhail Zavertyaev
- Alexey Zhelezov
- V. Zhukov
- S. Zucchelli
A study of Bs 0 → ηcϕ and Bs 0 → ηcπ+π− decays is performed using pp collision data corresponding to an integrated luminosity of 3.0 fb−1, collected with the LHCb detector in Run 1 of the LHC. The observation of the decay Bs 0 → ηcϕ is reported, where the ηc meson is reconstructed in the pp¯ , K+K−π+π−, π+π−π+π− and K+K−K+K− decay modes and the ϕ(1020) in the K+K− decay mode. The decay Bs 0 → J/ψϕ is used as a normalisation channel. Evidence is also reported for the decay Bs 0 → ηcπ+π−, where the ηc meson is reconstructed in the pp¯ decay mode, using the decay Bs 0 → J/ψπ+π− as a normalisation channel. The measured branching fractions are(Formula Presented.)where in each case the first uncertainty is statistical, the second systematic and the third uncertainty is due to the limited knowledge of the external branching fractions.[Figure not available: see fulltext.].
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