Observation of new charmless decays of bottom hadrons.

نویسندگان

  • T Aaltonen
  • J Adelman
  • T Akimoto
  • B Alvarez González
  • S Amerio
  • D Amidei
  • A Anastassov
  • A Annovi
  • J Antos
  • G Apollinari
  • A Apresyan
  • T Arisawa
  • A Artikov
  • W Ashmanskas
  • A Attal
  • A Aurisano
  • F Azfar
  • P Azzurri
  • W Badgett
  • A Barbaro-Galtieri
  • V E Barnes
  • B A Barnett
  • V Bartsch
  • G Bauer
  • P-H Beauchemin
  • F Bedeschi
  • D Beecher
  • S Behari
  • G Bellettini
  • J Bellinger
  • D Benjamin
  • A Beretvas
  • J Beringer
  • A Bhatti
  • M Binkley
  • D Bisello
  • I Bizjak
  • R E Blair
  • C Blocker
  • B Blumenfeld
  • A Bocci
  • A Bodek
  • V Boisvert
  • G Bolla
  • D Bortoletto
  • J Boudreau
  • A Boveia
  • B Brau
  • A Bridgeman
  • L Brigliadori
  • C Bromberg
  • E Brubaker
  • J Budagov
  • H S Budd
  • S Budd
  • S Burke
  • K Burkett
  • G Busetto
  • P Bussey
  • A Buzatu
  • K L Byrum
  • S Cabrera
  • C Calancha
  • M Campanelli
  • M Campbell
  • F Canelli
  • A Canepa
  • B Carls
  • D Carlsmith
  • R Carosi
  • S Carrillo
  • S Carron
  • B Casal
  • M Casarsa
  • A Castro
  • P Catastini
  • D Cauz
  • V Cavaliere
  • M Cavalli-Sforza
  • A Cerri
  • L Cerrito
  • S H Chang
  • Y C Chen
  • M Chertok
  • G Chiarelli
  • G Chlachidze
  • F Chlebana
  • K Cho
  • D Chokheli
  • J P Chou
  • G Choudalakis
  • S H Chuang
  • K Chung
  • W H Chung
  • Y S Chung
  • T Chwalek
  • C I Ciobanu
  • M A Ciocci
  • A Clark
  • D Clark
  • G Compostella
  • M E Convery
  • J Conway
  • M Cordelli
  • G Cortiana
  • C A Cox
  • D J Cox
  • F Crescioli
  • C Cuenca Almenar
  • J Cuevas
  • R Culbertson
  • J C Cully
  • D Dagenhart
  • M Datta
  • T Davies
  • P de Barbaro
  • S De Cecco
  • A Deisher
  • G De Lorenzo
  • M Dell'Orso
  • C Deluca
  • L Demortier
  • J Deng
  • M Deninno
  • P F Derwent
  • G P di Giovanni
  • C Dionisi
  • B Di Ruzza
  • J R Dittmann
  • M D'Onofrio
  • S Donati
  • P Dong
  • J Donini
  • T Dorigo
  • S Dube
  • J Efron
  • A Elagin
  • R Erbacher
  • D Errede
  • S Errede
  • R Eusebi
  • H C Fang
  • S Farrington
  • W T Fedorko
  • R G Feild
  • M Feindt
  • J P Fernandez
  • C Ferrazza
  • R Field
  • G Flanagan
  • R Forrest
  • M J Frank
  • M Franklin
  • J C Freeman
  • I Furic
  • M Gallinaro
  • J Galyardt
  • F Garberson
  • J E Garcia
  • A F Garfinkel
  • K Genser
  • H Gerberich
  • D Gerdes
  • A Gessler
  • S Giagu
  • V Giakoumopoulou
  • P Giannetti
  • K Gibson
  • J L Gimmell
  • C M Ginsburg
  • N Giokaris
  • M Giordani
  • P Giromini
  • M Giunta
  • G Giurgiu
  • V Glagolev
  • D Glenzinski
  • M Gold
  • N Goldschmidt
  • A Golossanov
  • G Gomez
  • G Gomez-Ceballos
  • M Goncharov
  • O González
  • I Gorelov
  • A T Goshaw
  • K Goulianos
  • A Gresele
  • S Grinstein
  • C Grosso-Pilcher
  • U Grundler
  • J Guimaraes da Costa
  • Z Gunay-Unalan
  • C Haber
  • K Hahn
  • S R Hahn
  • E Halkiadakis
  • B-Y Han
  • J Y Han
  • F Happacher
  • K Hara
  • D Hare
  • M Hare
  • S Harper
  • R F Harr
  • R M Harris
  • M Hartz
  • K Hatakeyama
  • C Hays
  • M Heck
  • A Heijboer
  • J Heinrich
  • C Henderson
  • M Herndon
  • J Heuser
  • S Hewamanage
  • D Hidas
  • C S Hill
  • D Hirschbuehl
  • A Hocker
  • S Hou
  • M Houlden
  • S-C Hsu
  • B T Huffman
  • R E Hughes
  • U Husemann
  • M Hussein
  • J Huston
  • J Incandela
  • G Introzzi
  • M Iori
  • A Ivanov
  • E James
  • D Jang
  • B Jayatilaka
  • E J Jeon
  • M K Jha
  • S Jindariani
  • W Johnson
  • M Jones
  • K K Joo
  • S Y Jun
  • J E Jung
  • T R Junk
  • T Kamon
  • D Kar
  • P E Karchin
  • Y Kato
  • R Kephart
  • J Keung
  • V Khotilovich
  • B Kilminster
  • D H Kim
  • H S Kim
  • H W Kim
  • J E Kim
  • M J Kim
  • S B Kim
  • S H Kim
  • Y K Kim
  • N Kimura
  • L Kirsch
  • S Klimenko
  • B Knuteson
  • B R Ko
  • K Kondo
  • D J Kong
  • J Konigsberg
  • A Korytov
  • A V Kotwal
  • M Kreps
  • J Kroll
  • D Krop
  • N Krumnack
  • M Kruse
  • V Krutelyov
  • T Kubo
  • T Kuhr
  • N P Kulkarni
  • M Kurata
  • S Kwang
  • A T Laasanen
  • S Lami
  • S Lammel
  • M Lancaster
  • R L Lander
  • K Lannon
  • A Lath
  • G Latino
  • I Lazzizzera
  • T LeCompte
  • E Lee
  • H S Lee
  • S W Lee
  • S Leone
  • J D Lewis
  • C-S Lin
  • J Linacre
  • M Lindgren
  • E Lipeles
  • A Lister
  • D O Litvintsev
  • C Liu
  • T Liu
  • N S Lockyer
  • A Loginov
  • M Loreti
  • L Lovas
  • D Lucchesi
  • C Luci
  • J Lueck
  • P Lujan
  • P Lukens
  • G Lungu
  • L Lyons
  • J Lys
  • R Lysak
  • D Macqueen
  • R Madrak
  • K Maeshima
  • K Makhoul
  • T Maki
  • P Maksimovic
  • S Malde
  • S Malik
  • G Manca
  • A Manousakis-Katsikakis
  • F Margaroli
  • C Marino
  • C P Marino
  • A Martin
  • V Martin
  • M Martínez
  • R Martínez-Ballarín
  • T Maruyama
  • P Mastrandrea
  • T Masubuchi
  • M Mathis
  • M E Mattson
  • P Mazzanti
  • K S McFarland
  • P McIntyre
  • R McNulty
  • A Mehta
  • P Mehtala
  • A Menzione
  • P Merkel
  • C Mesropian
  • T Miao
  • N Miladinovic
  • R Miller
  • C Mills
  • M Milnik
  • A Mitra
  • G Mitselmakher
  • H Miyake
  • N Moggi
  • C S Moon
  • R Moore
  • M J Morello
  • J Morlock
  • P Movilla Fernandez
  • J Mülmenstädt
  • A Mukherjee
  • Th Muller
  • R Mumford
  • P Murat
  • M Mussini
  • J Nachtman
  • Y Nagai
  • A Nagano
  • J Naganoma
  • K Nakamura
  • I Nakano
  • A Napier
  • V Necula
  • J Nett
  • C Neu
  • M S Neubauer
  • S Neubauer
  • J Nielsen
  • L Nodulman
  • M Norman
  • O Norniella
  • E Nurse
  • L Oakes
  • S H Oh
  • Y D Oh
  • I Oksuzian
  • T Okusawa
  • R Orava
  • K Osterberg
  • S Pagan Griso
  • E Palencia
  • V Papadimitriou
  • A Papaikonomou
  • A A Paramonov
  • B Parks
  • S Pashapour
  • J Patrick
  • G Pauletta
  • M Paulini
  • C Paus
  • T Peiffer
  • D E Pellett
  • A Penzo
  • T J Phillips
  • G Piacentino
  • E Pianori
  • L Pinera
  • K Pitts
  • C Plager
  • L Pondrom
  • O Poukhov
  • N Pounder
  • F Prakoshyn
  • A Pronko
  • J Proudfoot
  • F Ptohos
  • E Pueschel
  • G Punzi
  • J Pursley
  • J Rademacker
  • A Rahaman
  • V Ramakrishnan
  • N Ranjan
  • I Redondo
  • P Renton
  • M Renz
  • M Rescigno
  • S Richter
  • F Rimondi
  • L Ristori
  • A Robson
  • T Rodrigo
  • T Rodriguez
  • E Rogers
  • S Rolli
  • R Roser
  • M Rossi
  • R Rossin
  • P Roy
  • A Ruiz
  • J Russ
  • V Rusu
  • H Saarikko
  • A Safonov
  • W K Sakumoto
  • O Saltó
  • L Santi
  • S Sarkar
  • L Sartori
  • K Sato
  • A Savoy-Navarro
  • P Schlabach
  • A Schmidt
  • E E Schmidt
  • M A Schmidt
  • M P Schmidt
  • M Schmitt
  • T Schwarz
  • L Scodellaro
  • A Scribano
  • F Scuri
  • A Sedov
  • S Seidel
  • Y Seiya
  • A Semenov
  • L Sexton-Kennedy
  • F Sforza
  • A Sfyrla
  • S Z Shalhout
  • T Shears
  • P F Shepard
  • M Shimojima
  • S Shiraishi
  • M Shochet
  • Y Shon
  • I Shreyber
  • A Sidoti
  • P Sinervo
  • A Sisakyan
  • A J Slaughter
  • J Slaunwhite
  • K Sliwa
  • J R Smith
  • F D Snider
  • R Snihur
  • A Soha
  • S Somalwar
  • V Sorin
  • J Spalding
  • T Spreitzer
  • P Squillacioti
  • M Stanitzki
  • R St Denis
  • B Stelzer
  • O Stelzer-Chilton
  • D Stentz
  • J Strologas
چکیده

We search for new charmless decays of neutral b hadrons to pairs of charged hadrons, using 1 fb(-1) of data collected by the CDF II detector at the Fermilab Tevatron. We report the first observation of the Bs0-->K-pi+ decay and measure B(Bs0-->K-pi+)=(5.0+/-0.7(stat)+/-0.8(syst))x10(-6). We also report the first observation of charmless b-baryon decays, and measure B(Lambdab0-->ppi-)=(3.5+/-0.6(stat)+/-0.9(syst))x10(-6) and B(Lambdab0-->pK-)=(5.6+/-0.8(stat)+/-1.5(syst))x10(-6). No evidence is found for other modes, and we set the limit B(Bs0-->pi+pi;-)<1.2x10(-6) at 90% C.L.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Cdf Hot Topics

We present recent CDF results based on approximately 1 fb −1 of p¯ p collisions at √ s = 1.96 TeV delivered at Fermilab Tevatron. Results shown include the observation of the Bs oscillation frequency, the first observation of bottom baryon Σ (*)± b states, updates on B hadrons lifetimes, and searches for rare decays in the b → sµ + µ − transition and in charmless two-body B decays.

متن کامل

Cdf Hot Topics

We present recent CDF results based on approximately 1 fb −1 of p¯ p collisions at √ s = 1.96 TeV delivered at Fermilab Tevatron. Results shown include the observation of the Bs oscillation frequency, the first observation of bottom baryon Σ (*)± b states, updates on B hadrons lifetimes, and searches for rare decays in the b → sµ + µ − transition and in charmless two-body B decays.

متن کامل

Cdf Hot Topics

We present recent CDF results based on approximately 1 fb −1 of p¯ p collisions at √ s = 1.96 TeV delivered at Fermilab Tevatron. Results shown include the observation of the Bs oscillation frequency, the first observation of bottom baryon Σ (*)± b states, updates on B hadrons lifetimes, and searches for rare decays in the b → sµ + µ − transition and in charmless two-body B decays.

متن کامل

Branching fractions and direct CP asymmetries of charmless decay modes at the Tevatron

We present new CDF results on the branching fractions and time-integrated direct CP asymmetries for B and B s decay modes into pairs of charmless charged hadrons (pion or kaon). The data set for this update amounts to 1 fb of p̄p collisions at √ s = 1.96 TeV. We report the first observation of the B s → K π mode and a measurement of its branching fraction and direct CP asymmetry. We also observe...

متن کامل

Branching fractions and direct CP asymmetries of charmless B decay modes at the Tevatron

We present new CDF results on the branching fractions and time-integrated direct CP asymmetries for B and B s decay modes into pairs of charmless charged hadrons (pions or kaons). The data-set for this update amounts to 1 fb of p̄p collisions at a center of mass energy 1.96 TeV. We report the first observation of the B s → K π mode and a measurement of its branching fraction and direct CP asymme...

متن کامل

European Organization for Nuclear Research Measurement of the Inclusive Charmless Semileptonic Branching Fraction of Beauty Hadrons and a Determination of Jv Ub J at Lep

A measurement of the inclusive charmless semileptonic branching fraction of beauty hadrons, b ! X u ``, has been performed using almost two million hadronic Z decays collected by the L3 experiment at LEP, yielding the result:

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:
  • Physical review letters

دوره 103 3  شماره 

صفحات  -

تاریخ انتشار 2009