First observation of the decay Bs0-->Ds-Ds+ and measurement of its branching ratio.
نویسندگان
- T Aaltonen
- J Adelman
- T Akimoto
- M G Albrow
- B Alvarez González
- S Amerio
- D Amidei
- A Anastassov
- A Annovi
- J Antos
- M Aoki
- G Apollinari
- A Apresyan
- T Arisawa
- A Artikov
- W Ashmanskas
- A Attal
- A Aurisano
- F Azfar
- P Azzi-Bacchetta
- P Azzurri
- N Bacchetta
- W Badgett
- A Barbaro-Galtieri
- V E Barnes
- B A Barnett
- S Baroiant
- V Bartsch
- G Bauer
- P-H Beauchemin
- F Bedeschi
- P Bednar
- S Behari
- G Bellettini
- J Bellinger
- A Belloni
- D Benjamin
- A Beretvas
- J Beringer
- T Berry
- A Bhatti
- M Binkley
- D Bisello
- I Bizjak
- R E Blair
- C Blocker
- B Blumenfeld
- A Bocci
- A Bodek
- V Boisvert
- G Bolla
- A Bolshov
- D Bortoletto
- J Boudreau
- A Boveia
- B Brau
- A Bridgeman
- L Brigliadori
- C Bromberg
- E Brubaker
- J Budagov
- H S Budd
- S Budd
- K Burkett
- G Busetto
- P Bussey
- A Buzatu
- K L Byrum
- S Cabrera
- M Campanelli
- M Campbell
- F Canelli
- A Canepa
- D Carlsmith
- R Carosi
- S Carrillo
- S Carron
- B Casal
- M Casarsa
- A Castro
- P Catastini
- D Cauz
- 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
- C I Ciobanu
- M A Ciocci
- A Clark
- D Clark
- G Compostella
- M E Convery
- J Conway
- B Cooper
- K Copic
- M Cordelli
- G Cortiana
- 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 Lentdecker
- G De Lorenzo
- M Dell'Orso
- L Demortier
- J Deng
- M Deninno
- D De Pedis
- 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
- 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
- S Forrester
- M Franklin
- J C Freeman
- I Furic
- M Gallinaro
- J Galyardt
- F Garberson
- J E Garcia
- A F Garfinkel
- H Gerberich
- D Gerdes
- S Giagu
- V Giakoumopolou
- P Giannetti
- K Gibson
- J L Gimmell
- C M Ginsburg
- N Giokaris
- M Giordani
- P Giromini
- M Giunta
- 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
- A Hamilton
- B-Y Han
- J Y Han
- R Handler
- F Happacher
- K Hara
- D Hare
- M Hare
- S Harper
- R F Harr
- R M Harris
- M Hartz
- K Hatakeyama
- J Hauser
- C Hays
- M Heck
- A Heijboer
- B Heinemann
- 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
- J Huston
- J Incandela
- G Introzzi
- M Iori
- A Ivanov
- B Iyutin
- E James
- B Jayatilaka
- D Jeans
- E J Jeon
- 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
- U Kerzel
- V Khotilovich
- B Kilminster
- D H Kim
- H S Kim
- J E Kim
- M J Kim
- S B Kim
- S H Kim
- Y K Kim
- N Kimura
- L Kirsch
- S Klimenko
- M Klute
- B Knuteson
- B R Ko
- S A Koay
- K Kondo
- D J Kong
- J Konigsberg
- A Korytov
- A V Kotwal
- J Kraus
- M Kreps
- J Kroll
- N Krumnack
- M Kruse
- V Krutelyov
- T Kubo
- S E Kuhlmann
- T Kuhr
- N P Kulkarni
- Y Kusakabe
- S Kwang
- A T Laasanen
- S Lai
- S Lami
- S Lammel
- M Lancaster
- R L Lander
- K Lannon
- A Lath
- G Latino
- I Lazzizzera
- T Lecompte
- J Lee
- Y J Lee
- S W Lee
- R Lefèvre
- N Leonardo
- S Leone
- S Levy
- J D Lewis
- C Lin
- C S Lin
- J Linacre
- M Lindgren
- E Lipeles
- A Lister
- D O Litvintsev
- T Liu
- N S Lockyer
- A Loginov
- M Loreti
- L Lovas
- R-S Lu
- D Lucchesi
- J Lueck
- C Luci
- P Lujan
- P Lukens
- G Lungu
- L Lyons
- J Lys
- R Lysak
- E Lytken
- P Mack
- D Macqueen
- R Madrak
- K Maeshima
- K Makhoul
- T Maki
- P Maksimovic
- S Malde
- S Malik
- G Manca
- A Manousakis
- F Margaroli
- C Marino
- C P Marino
- A Martin
- M Martin
- V Martin
- M Martínez
- R Martínez-Ballarín
- T Maruyama
- P Mastrandrea
- T Masubuchi
- M E Mattson
- P Mazzanti
- K S McFarland
- P McIntyre
- R McNulty
- A Mehta
- P Mehtala
- S Menzemer
- A Menzione
- P Merkel
- C Mesropian
- A Messina
- T Miao
- N Miladinovic
- J Miles
- R Miller
- C Mills
- M Milnik
- A Mitra
- G Mitselmakher
- H Miyake
- S Moed
- N Moggi
- C S Moon
- R Moore
- M Morello
- 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
- C Neu
- M S Neubauer
- J Nielsen
- L Nodulman
- M Norman
- O Norniella
- E Nurse
- S H Oh
- Y D Oh
- I Oksuzian
- T Okusawa
- R Oldeman
- R Orava
- K Osterberg
- S Pagan Griso
- C Pagliarone
- E Palencia
- V Papadimitriou
- A Papaikonomou
- A A Paramonov
- B Parks
- S Pashapour
- J Patrick
- G Pauletta
- M Paulini
- C Paus
- D E Pellett
- A Penzo
- T J Phillips
- G Piacentino
- J Piedra
- L Pinera
- K Pitts
- C Plager
- L Pondrom
- X Portell
- O Poukhov
- N Pounder
- F Prakoshyn
- A Pronko
- J Proudfoot
- F Ptohos
- G Punzi
- J Pursley
- J Rademacker
- A Rahaman
- V Ramakrishnan
- N Ranjan
- I Redondo
- B Reisert
- V Rekovic
- P Renton
- M Rescigno
- S Richter
- F Rimondi
- L Ristori
- A Robson
- T Rodrigo
- 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
- G Salamanna
- O Saltó
- L Santi
- S Sarkar
- L Sartori
- K Sato
- A Savoy-Navarro
- T Scheidle
- P Schlabach
- E E Schmidt
- M A Schmidt
- M P Schmidt
- M Schmitt
- T Schwarz
- L Scodellaro
- A L Scott
- A Scribano
- F Scuri
- A Sedov
- S Seidel
- Y Seiya
- A Semenov
- L Sexton-Kennedy
- A Sfyria
- S Z Shalhout
- M D Shapiro
- T Shears
- P F Shepard
- D Sherman
- M Shimojima
- M Shochet
- Y Shon
- I Shreyber
- A Sidoti
- P Sinervo
- A Sisakyan
- A J Slaughter
- J Slaunwhite
- K Sliwa
چکیده
We report the observation of the exclusive decay Bs0-->Ds-Ds+ at the 7.5 standard deviation level using 355 pb(-1) of data collected by the CDF II detector in pp collisions at sqrt[s]=1.96 TeV at the Fermilab Tevatron. We measure the relative branching ratio B(Bs0-->Ds-Ds+)/B(B0-->D-Ds+)=1.44(-0.44)(+0.48). Using the world average value for B(B0-->D-Ds+), we find B(Bs0-->Ds-Ds+)=(9.4(-4.2)(+4.4))x10(-3). This provides a lower bound DeltaGammasCP/Gammas>or=2B(Bs0-->Ds-Ds+)>1.2x10(-2) at 95% C.L.
منابع مشابه
Ds with Radiative Corrections
The radiative corrections to the pure leptonic decay Ds−→lνl up-to one-loop order is presented. We find the virtual photon loop corrections to Ds−→τντ is negative and the corresponding branching ratio is larger than 3.51×10−3 . Considering the possible experimental resolutions, our prediction of the radiative decay Ds−→τντγ is not so large as others, and the best radiative channel to determine ...
متن کاملAbsolute determination of Ds branching ratios and fDs extraction at a neutrino factory
A method for a direct measurement of the exclusive Ds branching ratios and of the decay constant fDs with a systematical error better than 5% is presented. The approach is based on the peculiar vertex topology of the anti-neutrino induced diffractive charm events. The statistical accuracy achievable with a neutrino factory is estimated.
متن کاملExperimental Status of Leptonic Ds Decays
The measurements of the leptonic branching ratios BR(Ds → τν) and BR(Ds → μν) are reviewed. The values of the Ds decay constant fDs derived from the measurements are updated and a world average is calculated taking into account the large correlations between the measurements.
متن کاملFinal State Interaction Effects in B+→J/ψ π+ Decay
In this research the exclusive decay of is calculated by QCD factorization (QCDF) method and final state interaction (FSI). First, the decay is calculated via QCDF method. The result that is found by using the QCDF method is less than the experimental result. So FSI is considered to solve the decay. For this decay, via the exchange of mesons are chosen for the intermedi...
متن کاملEffects of final state interaction in B^+_c to D^0 K^+ decay
In this paper, the decay of Bc+ meson, which consists of two b and c heavy quarks, into the Do and K+ mesons was studied. Given that the experimental branching ratio for this decay was within the range of 3.75*10-5 to 11.16*10-5; it was decided to calculate the theoretical branching ratio by applying the final state interaction (FSI) through the T and cross-section channels. In this process, b...
متن کاملذخیره 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 ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- Physical review letters
دوره 100 2 شماره
صفحات -
تاریخ انتشار 2008