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공공누리This item is licensed Korea Open Government License

Title
First observation of $B_s0\to J/\psi\eta$ and $B_s0\to J/\psi\eta$
Author(s)
J.Li조기현
Publication Year
2012-05-03
Abstract
WereportfirstobservationsofB0s
!J=candB0s
!J=c0.Theresultsareobtainedfrom
121:4fb1ofdatacollectedattheð5SÞresonancewiththeBelledetectorattheKEKBeþecollider.
WeobtainthebranchingfractionsBðB0s
!J=cÞ¼½5:100:50ðstatÞ0:25ðsystÞþ1:14
0:79
ðNB
ðÞ
s
B
ðÞ
s
Þ104,
andBðB0s
!J=c0Þ¼½3:710:61ðstatÞ0:18ðsystÞþ0:83
0:57
ðNB
ðÞ
s
B
ðÞ
s
Þ104.Theratioofthetwo
branchingfractionsismeasuredtobeBðBs!J=c0Þ
BðBs!J=cÞ¼0:730:14ðstatÞ0:02ðsystÞ
Keyword
HighEnergyPhysics; ParticlePhysics; belle
Journal Title
PhysicalReviewLetters
Citation Volume
108
ISSN
0031-9007
Files in This Item:
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Appears in Collections:
7. KISTI 연구성과 > 학술지 발표논문
URI
https://repository.kisti.re.kr/handle/10580/14105
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