Measurements of branching fractions and CP-violating asymmetries in B meson decays to charmless two-body states containing a K(0).

نویسندگان

  • B Aubert
  • R Barate
  • D Boutigny
  • F Couderc
  • J-M Gaillard
  • A Hicheur
  • Y Karyotakis
  • J P Lees
  • P Robbe
  • V Tisserand
  • A Zghiche
  • A Palano
  • A Pompili
  • J C Chen
  • N D Qi
  • G Rong
  • P Wang
  • Y S Zhu
  • G Eigen
  • I Ofte
  • B Stugu
  • G S Abrams
  • A W Borgland
  • A B Breon
  • D N Brown
  • J Button-Shafer
  • R N Cahn
  • E Charles
  • C T Day
  • M S Gill
  • A V Gritsan
  • Y Groysman
  • R G Jacobsen
  • R W Kadel
  • J Kadyk
  • L T Kerth
  • Yu G Kolomensky
  • G Kukartsev
  • C LeClerc
  • M E Levi
  • G Lynch
  • L M Mir
  • P J Oddone
  • T J Orimoto
  • M Pripstein
  • N A Roe
  • A Romosan
  • M T Ronan
  • V G Shelkov
  • A V Telnov
  • W A Wenzel
  • K Ford
  • T J Harrison
  • C M Hawkes
  • D J Knowles
  • S E Morgan
  • R C Penny
  • A T Watson
  • N K Watson
  • K Goetzen
  • T Held
  • H Koch
  • B Lewandowski
  • M Pelizaeus
  • K Peters
  • H Schmuecker
  • M Steinke
  • J T Boyd
  • N Chevalier
  • W N Cottingham
  • M P Kelly
  • T E Latham
  • C Mackay
  • F F Wilson
  • K Abe
  • T Cuhadar-Donszelmann
  • C Hearty
  • T S Mattison
  • J A McKenna
  • D Thiessen
  • P Kyberd
  • A K McKemey
  • L Teodorescu
  • V E Blinov
  • A D Bukin
  • V B Golubev
  • V N Ivanchenko
  • E A Kravchenko
  • A P Onuchin
  • S I Serednyakov
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  • E P Solodov
  • A N Yushkov
  • D Best
  • M Bruinsma
  • M Chao
  • I Eschrich
  • D Kirkby
  • A J Lankford
  • M Mandelkern
  • R K Mommsen
  • W Roethel
  • D P Stoker
  • C Buchanan
  • B L Hartfiel
  • J W Gary
  • J Layter
  • B C Shen
  • K Wang
  • D del Re
  • H K Hadavand
  • E J Hill
  • D B MacFarlane
  • H P Paar
  • Sh Rahatlou
  • V Sharma
  • J W Berryhill
  • C Campagnari
  • B Dahmes
  • S L Levy
  • O Long
  • A Lu
  • M A Mazur
  • J D Richman
  • W Verkerke
  • T W Beck
  • J Beringer
  • A M Eisner
  • C A Heusch
  • W S Lockman
  • T Schalk
  • R E Schmitz
  • B A Schumm
  • A Seiden
  • P Spradlin
  • M Turri
  • W Walkowiak
  • D C Williams
  • M G Wilson
  • J Albert
  • E Chen
  • G P Dubois-Felsmann
  • A Dvoretskii
  • R J Erwin
  • D G Hitlin
  • I Narsky
  • T Piatenko
  • F C Porter
  • A Ryd
  • A Samuel
  • S Yang
  • S Jayatilleke
  • G Mancinelli
  • B T Meadows
  • M D Sokoloff
  • T Abe
  • F Blanc
  • P Bloom
  • S Chen
  • P J Clark
  • W T Ford
  • U Nauenberg
  • A Olivas
  • P Rankin
  • J Roy
  • J G Smith
  • W C van Hoek
  • L Zhang
  • J L Harton
  • T Hu
  • A Soffer
  • W H Toki
  • R J Wilson
  • J Zhang
  • R Aleksan
  • S Emery
  • A Gaidot
  • S F Ganzhur
  • P-F Giraud
  • G Hamelde Monchenault
  • W Kozanecki
  • M Langer
  • M Legendre
  • G W London
  • B Mayer
  • G Schott
  • G Vasseur
  • Ch Yeche
  • M Zito
  • D Altenburg
  • T Brandt
  • J Brose
  • T Colberg
  • M Dickopp
  • A Hauke
  • H M Lacker
  • E Maly
  • R Müller-Pfefferkorn
  • R Nogowski
  • S Otto
  • J Schubert
  • K R Schubert
  • R Schwierz
  • B Spaan
  • L Wilden
  • D Bernard
  • G R Bonneaud
  • F Brochard
  • J Cohen-Tanugi
  • P Grenier
  • Ch Thiebaux
  • G Vasileiadis
  • M Verderi
  • A Khan
  • D Lavin
  • F Muheim
  • S Playfer
  • J E Swain
  • M Andreotti
  • V Azzolini
  • D Bettoni
  • C Bozzi
  • R Calabrese
  • G Cibinetto
  • E Luppi
  • M Negrini
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  • A Sarti
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  • F Anulli
  • R Baldini-Ferroli
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  • R De Sangro
  • D Falciai
  • G Finocchiaro
  • P Patteri
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  • A Zallo
  • A Buzzo
  • R Capra
  • R Contri
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  • M Lo Vetere
  • M Macri
  • M R Monge
  • S Passaggio
  • C Patrignani
  • E Robutti
  • A Santroni
  • S Tosi
  • S Bailey
  • M Morii
  • E Won
  • R S Dubitzky
  • W Bhimji
  • D A Bowerman
  • P D Dauncey
  • U Egede
  • J R Gaillard
  • G W Morton
  • J A Nash
  • G P Taylor
  • G J Grenier
  • S-J Lee
  • U Mallik
  • J Cochran
  • H B Crawley
  • J Lamsa
  • W T Meyer
  • S Prell
  • E I Rosenberg
  • J Yi
  • M Biasini
  • M Pioppi
  • M Davier
  • G Grosdidier
  • A Höcker
  • S Laplace
  • F Le Diberder
  • V Lepeltier
  • A M Lutz
  • T C Petersen
  • S Plaszczynski
  • M H Schune
  • L Tantot
  • G Wormser
  • V Brigljević
  • C H Cheng
  • D J Lange
  • M C Simani
  • D M Wright
  • A J Bevan
  • J P Coleman
  • J R Fry
  • E Gabathuler
  • R Gamet
  • M Kay
  • R J Parry
  • D J Payne
  • R J Sloane
  • C Touramanis
  • J J Back
  • C M Cormack
  • P F Harrison
  • H W Shorthouse
  • P B Vidal
  • C L Brown
  • G Cowan
  • R L Flack
  • H U Flaecher
  • S George
  • M G Green
  • A Kurup
  • C E Marker
  • T R McMahon
  • S Ricciardi
  • F Salvatore
  • G Vaitsas
  • M A Winter
  • D Brown
  • C L Davis
  • J Allison
  • N R Barlow
  • R J Barlow
  • P A Hart
  • M C Hodgkinson
  • F Jackson
  • G D Lafferty
  • A J Lyon
  • J H Weatherall
  • J C Williams
  • A Farbin
  • W D Hulsbergen
  • A Jawahery
  • D Kovalskyi
  • C K Lae
  • V Lillard
  • D A Roberts
  • G Blaylock
  • C Dallapiccola
  • K T Flood
  • S S Hertzbach
  • R Kofler
  • V B Koptchev
  • T B Moore
  • S Saremi
  • H Staengle
  • S Willocq
  • R Cowan
  • G Sciolla
  • F Taylor
  • R K Yamamoto
  • D J J Mangeol
  • P M Patel
  • S H Robertson
  • A Lazzaro
  • F Palombo
  • J M Bauer
  • L Cremaldi
  • V Eschenburg
  • R Godang
  • R Kroeger
  • J Reidy
  • D A Sanders
  • D J Summers
  • H W Zhao
  • S Brunet
  • D Cote-Ahern
  • P Taras
  • H Nicholson
  • G Raven
  • C Cartaro
  • N Cavallo
  • G De Nardo
  • F Fabozzi
  • C Gatto
  • L Lista
  • P Paolucci
  • D Piccolo
  • C Sciacca
  • C P Jessop
  • J M LoSecco
  • T A Gabriel
  • B Brau
  • K K Gan
  • K Honscheid
  • D Hufnagel
  • H Kagan
  • R Kass
  • T Pulliam
  • R Ter-Antonyan
  • Q K Wong
  • J Brau
  • R Frey
  • O Igonkina
  • C T Potter
  • N B Sinev
  • D Strom
  • E Torrence
  • F Colecchia
  • A Dorigo
  • F Galeazzi
  • M Margoni
  • M Morandin
  • M Posocco
  • M Rotondo
  • F Simonetto
  • R Stroili
  • G Tiozzo
  • C Voci
  • M Benayoun
  • H Briand
  • J Chauveau
  • P David
  • Ch De la Vaissière
  • L Del Buono
  • O Hamon
  • M J J John
  • Ph Leruste
  • J Ocariz
  • M Pivk
  • L Roos
  • J Stark
  • S T'Jampens
  • G Therin
  • P F Manfredi
  • V Re
  • P K Behera
  • L Gladney
  • Q H Guo
  • J Panetta
  • C Angelini
  • G Batignani
  • S Bettarini
  • M Bondioli
  • F Bucci
  • G Calderini
  • M Carpinelli
  • V Del Gamba
  • F Forti
  • M A Giorgi
  • A Lusiani
  • G Marchiori
  • F Martinez-Vidal
  • M Morganti
  • N Neri
  • E Paoloni
  • M Rama
  • G Rizzo
  • F Sandrelli
  • J Walsh
  • M Haire
  • D Judd
  • K Paick
  • D E Wagoner
  • G Cavoto
  • N Danielson
  • P Elmer
  • C Lu
  • V Miftakov
  • J Olsen
  • A J S Smith
  • F Bellini
  • R Faccini
  • F Ferrarotto
  • F Ferroni
  • M Gaspero
  • M A Mazzoni
  • S Morganti
  • M Pierini
  • G Piredda
  • F Safai Tehrani
  • C Voena
  • S Christ
  • G Wagner
  • R Waldi
  • T Adye
  • N De Groot
  • B Franek
  • N I Geddes
  • G P Gopal
  • E O Olaiya
  • S M Xella
  • M V Purohit
  • A W Weidemann
  • F X Yumiceva
  • D Aston
  • R Bartoldus
  • N Berger
  • A M Boyarski
  • O L Buchmueller
  • M R Convery
  • M Cristinziani
  • D Dong
  • J Dorfan
  • D Dujmic
  • W Dunwoodie
  • E E Elsen
  • R C Field
چکیده

We present measurements of branching fractions and CP-violating asymmetries in decays of B mesons to two-body final states containing a K0. The results are based on a data sample of approximately 88 x 10(6) Upsilon(4S)-->BB decays collected with the BABAR detector at the PEP-II asymmetric-energy B Factory at SLAC. We measure B(B+-->K(0)pi(+))=(22.3+/-1.7+/-1.1)x10(-6), B(B0-->K(0)pi(0)=(11.4+/-1.7+/-0.8)x10(-6), B(B+-->K(0)K+)<2.5 x 10(-6), and B(B0-->K(0)K(0)<1.8 x 10(-6), where the first uncertainty is statistical and the second is systematic, and the upper limits are at the 90% confidence level. In addition, the following CP-violating asymmetries have been measured: A(CP)(B+-->K(0)pi(+))=-0.05+/-0.08+/-0.01 and A(CP)(B0-->K(0)pi(0)=0.03+/-0.36+/-0.11.

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عنوان ژورنال:
  • Physical review letters

دوره 92 20  شماره 

صفحات  -

تاریخ انتشار 2004