Decays of B meson to two charmed mesons
Li RH(李润辉); Lv CD(吕才典); Wang XX(汪晓霞); Li, RH; Lu, CD; Sanda, AI; Wang, XX
刊名PHYSICAL REVIEW D
2010
卷号81期号:3页码:34006
学科分类Astronomy & Astrophysics; Physics
DOI10.1103/PhysRevD.81.034006
通讯作者[Li, Run-Hui ; Lu, Cai-Dian ; Wang, Xiao-Xia] Inst High Energy Phys, Beijing 100049, Peoples R China ; [Li, Run-Hui] Shandong Univ, Sch Phys, Jinan 250100, Peoples R China ; [Sanda, A. I.] Kanagawa Univ, Fac Technol, Yokohama, Kanagawa 221, Japan ; [Lu, Cai-Dian] Theoret Phys Ctr Sci Facil, Beijing 100049, Peoples R China
文章类型Article
英文摘要The factorization theorem in decays of B-(s) mesons to two charmed mesons (both pseudoscalar and vector) can be proved in the leading order in m(D)/m(B) and A(QCD)/m(D) expansion. Working in the perturbative QCD approach, we find that the factorizable emission diagrams are dominant. Most of branching ratios we compute agree with the experimental data well, which means that the factorization theorem seems to be reliable in predicting branching ratios for these decays. In the decays of a B meson to two vector charmed mesons, the transverse polarization states contribute 40%-50% both in the processes with an external W emission and in the pure annihilation decays. This is in agreement with the present experimental data. We also calculate the CP asymmetry parameters. The results show that the direct CP asymmetries are very small. Thus observation of any large direct CP asymmetry will be a signal for new physics. The mixing induced CP asymmetry in the neutral modes is large. This is also in agreement with the current experimental measurements. They can give a cross-check of the sin2 beta measurement from other channels.
类目[WOS]Astronomy & Astrophysics ; Physics, Particles & Fields
研究领域[WOS]Astronomy & Astrophysics ; Physics
原文出处查看原文
语种英语
WOS记录号WOS:000275069000027
引用统计
被引频次:24[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/311005/240542
专题中国科学院高能物理研究所_理论物理室_期刊论文
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
Li RH,Lv CD,Wang XX,et al. Decays of B meson to two charmed mesons[J]. PHYSICAL REVIEW D,2010,81(3):34006.
APA 李润辉.,吕才典.,汪晓霞.,Li, RH.,Lu, CD.,...&Wang, XX.(2010).Decays of B meson to two charmed mesons.PHYSICAL REVIEW D,81(3),34006.
MLA 李润辉,et al."Decays of B meson to two charmed mesons".PHYSICAL REVIEW D 81.3(2010):34006.
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
8890.pdf(364KB)期刊论文作者接受稿开放获取CC BY-NC-SA浏览 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
[李润辉]的文章
[吕才典]的文章
[汪晓霞]的文章
百度学术
百度学术中相似的文章
[李润辉]的文章
[吕才典]的文章
[汪晓霞]的文章
必应学术
必应学术中相似的文章
[李润辉]的文章
[吕才典]的文章
[汪晓霞]的文章
相关权益政策
暂无数据
收藏/分享
文件名: 8890.pdf
格式: Adobe PDF
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。