Decay constants of heavy-light mesons in heavy quark effective theory
黄涛(理); Luo CW(罗传望); Huang, T; Luo, CW
刊名PHYSICAL REVIEW D
1996
卷号53期号:9页码:5042-5050
学科分类Astronomy & Astrophysics; Physics
DOI10.1103/PhysRevD.53.5042
通讯作者CCAST,WORLD LAB,BEIJING 100080,PEOPLES R CHINA
文章类型Article
英文摘要The SU(3)-breaking effects in the leading and subleading parameters appearing in the heavy quark expansion of decay constants of the heavy-light mesons are systematically analyzed to two loop accuracy using QCD sum rules. We find that the SU(3)-breaking effects in the decay constant of the pseudoscalar are, respectively, about 20% for the b-flavored meson, 17% for the charmed meson, i.e., f(Bs)/f(B)=1.20+/-0.04+/-0.03, f(Ds)/f(D)=1.17+/-0.03+/-0.03 (the first error comes from the sum rule uncertainty, the second one from the uncertainty in the strange quark mass) and, in the expansion of f(ps) root(mps)/root m(p), the subleading order is about similar to 3% of the corresponding leading one for the b-flavored meson, about -5.5% for the charmed meson, and depends on the strange quark mass very weakly. In addition, the ratios of the vector to pseudoscalar meson decay constants are found to be f(Bs)*/f(Bs)=fB*/f(B)=1.05+/-0.02+/-0.00, and the SU(3)-breaking effect in the mass is about 102+/-16+/-20 MeV.
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:A1996UJ48700036
引用统计
被引频次:7[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/311005/240007
专题中国科学院高能物理研究所_理论物理室_期刊论文
中国科学院高能物理研究所_理论物理室
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
Huang T,Luo CW,Huang, T,et al. Decay constants of heavy-light mesons in heavy quark effective theory[J]. PHYSICAL REVIEW D,1996,53(9):5042-5050.
APA 黄涛,罗传望,Huang, T,&Luo, CW.(1996).Decay constants of heavy-light mesons in heavy quark effective theory.PHYSICAL REVIEW D,53(9),5042-5050.
MLA 黄涛,et al."Decay constants of heavy-light mesons in heavy quark effective theory".PHYSICAL REVIEW D 53.9(1996):5042-5050.
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
7479.pdf(276KB)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
[黄涛(理)]的文章
[罗传望]的文章
[Huang, T]的文章
百度学术
百度学术中相似的文章
[黄涛(理)]的文章
[罗传望]的文章
[Huang, T]的文章
必应学术
必应学术中相似的文章
[黄涛(理)]的文章
[罗传望]的文章
[Huang, T]的文章
相关权益政策
暂无数据
收藏/分享
文件名: 7479.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。