中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Observation of the decay B-0 ->rho(+)rho(-) and measurement of the branching fraction and polarization

文献类型:期刊论文

作者BaBar Collaboration
刊名PHYSICAL REVIEW D
出版日期2004
卷号69期号:3
关键词CP-ASYMMETRIES CHARMLESS SEARCH
通讯作者Aubert, B (reprint author), Lab Annecy Le Vieux Phys Particules, F-74941 Annecy Le Vieux, France.
英文摘要We have observed the rare decay B-0-->rho(+)rho(-) in a sample of 89 million B (b) over bar pairs recorded with the BABAR detector. The number of observed events is 88(-21)(+23)+/-9, with a significance of 5.1 standard deviations with systematic uncertainties included. The branching fraction and the longitudinal polarization are measured to be B(B-0-->rho(+)rho(-))=(25(-6-6)(+7+5))x10(-6) and Gamma(L)/Gamma=0.98(-0.08)(+0.02)+/-0.03, respectively.
学科主题Astronomy & Astrophysics; Physics
类目[WOS]Astronomy & Astrophysics ; Physics, Particles & Fields
收录类别SCI
语种英语
WOS记录号WOS:000220001600002
公开日期2016-02-26
源URL[http://ir.ihep.ac.cn/handle/311005/212363]  
专题高能物理研究所_实验物理中心
作者单位中国科学院高能物理研究所
推荐引用方式
GB/T 7714
BaBar Collaboration. Observation of the decay B-0 ->rho(+)rho(-) and measurement of the branching fraction and polarization[J]. PHYSICAL REVIEW D,2004,69(3).
APA BaBar Collaboration.(2004).Observation of the decay B-0 ->rho(+)rho(-) and measurement of the branching fraction and polarization.PHYSICAL REVIEW D,69(3).
MLA BaBar Collaboration."Observation of the decay B-0 ->rho(+)rho(-) and measurement of the branching fraction and polarization".PHYSICAL REVIEW D 69.3(2004).

入库方式: OAI收割

来源:高能物理研究所

浏览0
下载0
收藏0
其他版本

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。