IHEP OpenIR  > 实验物理中心
Measurement of CP violation in B-0 -> D*-pi(+) and B-0 -> D-pi(+) decays
Belle Collaboration
2006
发表期刊PHYSICAL REVIEW D
卷号73期号:9
通讯作者Ronga, FJ (reprint author), High Energy Accelerator Res Org KEK, Tsukuba, Ibaraki, Japan.
摘要We report measurements of time-dependent decay rates for B-0 -> D(*)-pi(+) decays and extraction of CP violation parameters that depend on phi(3). Using fully reconstructed D-(*)pi events and partially reconstructed D-*pi events from a data sample that contains 386x10(6) B (B) over bar pairs that was collected near the Upsilon(4S) resonance, with the Belle detector at the KEKB asymmetric energy e(+)e(-) collider, we obtain the CP violation parameters S+(D-(*)pi) and S-(D-(*)pi). We obtain S+(D-*pi)=0.049 +/- 0.020(stat)+/- 0.011(sys), S-(D-*pi)=0.031 +/- 0.019(stat)+/- 0.011(sys), and S+(D pi)=0.031 +/- 0.030(stat)+/- 0.012(sys), S-(D pi)=0.068 +/- 0.029(stat)+/- 0.012(sys). These results are an indication of CP violation in B-0 -> D*-pi(+) and B-0 -> D-pi(+) decays at the 2.5 sigma and 2.2 sigma levels, respectively. If we use the values of R-D((*))pi that are derived using assumptions of factorization and SU(3) symmetry, branching fraction measurements for the B -> D-s((*))pi modes, and lattice QCD calculations, we can restrict the allowed region of \sin(2 phi(1)+phi(3)\ to be above 0.44 and 0.52 at 68% confidence level from the D-*pi and D pi modes, respectively.
关键词B-MESONS INFORMATION MODES
学科领域Astronomy & Astrophysics; Physics
DOI10.1103/PhysRevD.73.092003
收录类别SCI
语种英语
WOS类目Astronomy & Astrophysics ; Physics, Particles & Fields
WOS记录号WOS:000237950900006
引用统计
被引频次:26[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/212664
专题实验物理中心
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
Belle Collaboration. Measurement of CP violation in B-0 -> D*-pi(+) and B-0 -> D-pi(+) decays[J]. PHYSICAL REVIEW D,2006,73(9).
APA Belle Collaboration.(2006).Measurement of CP violation in B-0 -> D*-pi(+) and B-0 -> D-pi(+) decays.PHYSICAL REVIEW D,73(9).
MLA Belle Collaboration."Measurement of CP violation in B-0 -> D*-pi(+) and B-0 -> D-pi(+) decays".PHYSICAL REVIEW D 73.9(2006).
条目包含的文件
文件名称/大小 文献类型 版本类型 开放类型 使用许可
911.pdf(777KB)期刊论文作者接受稿限制开放CC BY-NC-SA请求全文
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Belle Collaboration]的文章
百度学术
百度学术中相似的文章
[Belle Collaboration]的文章
必应学术
必应学术中相似的文章
[Belle Collaboration]的文章
相关权益政策
暂无数据
收藏/分享
所有评论 (0)
暂无评论
 

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。