Evidence for CP violation in B+ → ppK+ decays.
نویسندگان
- R Aaij
- B Adeva
- M Adinolfi
- A Affolder
- Z Ajaltouni
- S Akar
- J Albrecht
- F Alessio
- M Alexander
- S Ali
- G Alkhazov
- P Alvarez Cartelle
- A A Alves
- S Amato
- S Amerio
- Y Amhis
- L An
- L Anderlini
- J Anderson
- R Andreassen
- M Andreotti
- J E Andrews
- R B Appleby
- O Aquines Gutierrez
- F Archilli
- A Artamonov
- M Artuso
- E Aslanides
- G Auriemma
- M Baalouch
- S Bachmann
- J J Back
- A Badalov
- W Baldini
- R J Barlow
- C Barschel
- S Barsuk
- W Barter
- V Batozskaya
- V Battista
- A Bay
- L Beaucourt
- J Beddow
- F Bedeschi
- I Bediaga
- S Belogurov
- K Belous
- I Belyaev
- E Ben-Haim
- G Bencivenni
- S Benson
- J Benton
- A Berezhnoy
- R Bernet
- M-O Bettler
- M van Beuzekom
- A Bien
- S Bifani
- T Bird
- A Bizzeti
- P M Bjørnstad
- T Blake
- F Blanc
- J Blouw
- S Blusk
- V Bocci
- A Bondar
- N Bondar
- W Bonivento
- S Borghi
- A Borgia
- M Borsato
- T J V Bowcock
- E Bowen
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- T Britton
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- R Calabrese
- M Calvi
- M Calvo Gomez
- P Campana
- D Campora Perez
- A Carbone
- G Carboni
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- A Cardini
- L Carson
- K Carvalho Akiba
- G Casse
- L Cassina
- L Castillo Garcia
- M Cattaneo
- Ch Cauet
- R Cenci
- M Charles
- Ph Charpentier
- M Chefdeville
- S Chen
- S-F Cheung
- N Chiapolini
- M Chrzaszcz
- K Ciba
- X Cid Vidal
- G Ciezarek
- P E L Clarke
- M Clemencic
- H V Cliff
- J Closier
- V Coco
- J Cogan
- E Cogneras
- P Collins
- A Comerma-Montells
- A Contu
- A Cook
- M Coombes
- S Coquereau
- G Corti
- M Corvo
- I Counts
- B Couturier
- G A Cowan
- D C Craik
- M Cruz Torres
- S Cunliffe
- R Currie
- C D'Ambrosio
- J Dalseno
- P David
- P N Y David
- A Davis
- K De Bruyn
- S De Capua
- M De Cian
- J M De Miranda
- L De Paula
- W De Silva
- P De Simone
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- S Eisenhardt
- U Eitschberger
- R Ekelhof
- L Eklund
- I El Rifai
- Ch Elsasser
- S Ely
- S Esen
- H-M Evans
- T Evans
- A Falabella
- C Färber
- C Farinelli
- N Farley
- S Farry
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- D Ferguson
- V Fernandez Albor
- F Ferreira Rodrigues
- M Ferro-Luzzi
- S Filippov
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- C Fitzpatrick
- T Fiutowski
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- R Forty
- O Francisco
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- A Grecu
- E Greening
- S Gregson
- P Griffith
- L Grillo
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- Yu Guz
- T Gys
- C Hadjivasiliou
- G Haefeli
- C Haen
- S C Haines
- S Hall
- B Hamilton
- T Hampson
- X Han
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- N Harnew
- S T Harnew
- J Harrison
- J He
- T Head
- V Heijne
- K Hennessy
- P Henrard
- L Henry
- J A Hernando Morata
- E van Herwijnen
- M Heß
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- P Jaton
- A Jawahery
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- D Johnson
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- C Joram
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- N Jurik
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- M Karacson
- T M Karbach
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- T Ketel
- B Khanji
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- S Klaver
- K Klimaszewski
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- P Koppenburg
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- M Liles
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- C Linn
- F Lionetto
- B Liu
- S Lohn
- I Longstaff
- J H Lopes
- N Lopez-March
- P Lowdon
- H Lu
- D Lucchesi
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- O Lupton
- F Machefert
- I V Machikhiliyan
- F Maciuc
- O Maev
- S Malde
- A Malinin
- G Manca
- G Mancinelli
- J Maratas
- J F Marchand
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- C Marin Benito
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- A Martín Sánchez
- M Martinelli
- D Martinez Santos
- F Martinez Vidal
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- Z Mathe
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- A McNab
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- M Merk
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- S Monteil
- M Morandin
- P Morawski
- A Mordà
- M J Morello
- J Moron
- A-B Morris
- R Mountain
- F Muheim
- K Müller
- M Mussini
- B Muster
- P Naik
- T Nakada
- R Nandakumar
- I Nasteva
- M Needham
- N Neri
- S Neubert
- N Neufeld
- M Neuner
- A D Nguyen
- T D Nguyen
- C Nguyen-Mau
- M Nicol
- V Niess
- R Niet
- N Nikitin
- T Nikodem
- A Novoselov
- D P O'Hanlon
- A Oblakowska-Mucha
- V Obraztsov
- S Oggero
- S Ogilvy
- O Okhrimenko
- R Oldeman
- G Onderwater
- M Orlandea
- J M Otalora Goicochea
- P Owen
- A Oyanguren
- B K Pal
- A Palano
- F Palombo
- M Palutan
- J Panman
- A Papanestis
- M Pappagallo
- L L Pappalardo
- C Parkes
- C J Parkinson
- G Passaleva
- G D Patel
- M Patel
- C Patrignani
- A Pazos Alvarez
- A Pearce
- A Pellegrino
- M Pepe Altarelli
- S Perazzini
- E Perez Trigo
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- B Rachwal
چکیده
Three-body B+ → ppK+ and B(+) → ppπ(+) decays are studied using a data sample corresponding to an integrated luminosity of 3.0 fb(-1) collected by the LHCb experiment in proton-proton collisions at center-of-mass energies of 7 and 8 TeV. Evidence of CP violation in the B(+) → ppK(+) decay is found in regions of the phase space, representing the first measurement of this kind for a final state containing baryons. Measurements of the forward-backward asymmetry of the light meson in the pp rest frame yield A(FB)(ppK(+),m(pp)<2.85 GeV/c(2)) = 0.495 ± 0.012 (stat) ± 0.007 (syst) and A(FB)(ppπ(+),m(pp) <2.85 GeV/c(2)) = -0.409 ± 0.033 (stat) ± 0.006 (syst). In addition, the branching fraction of the decay B(+) → Λ(1520)p is measured to be B(B(+) → Λ(1520)p) = (3.15 ± 0.48 (stat) ± 0.07 (syst) ± 0.26 (BF)) × 10(-7), where BF denotes the uncertainty on secondary branching fractions.
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ورودعنوان ژورنال:
- Physical review letters
دوره 113 14 شماره
صفحات -
تاریخ انتشار 2014