Order-v(4) relativistic corrections to gamma inclusive decay into a charm pair
桑文龙;Sang, WL; Chen, HT; Chen, YQ
刊名PHYSICAL REVIEW D
2012
卷号86期号:11页码:114004
学科分类Astronomy & Astrophysics; Physics
DOI10.1103/PhysRevD.86.114004
英文摘要In this work, we determine the short-distance coefficients for gamma inclusive decay into a charm pair through relative order v(4) within the framework of nonrelativistic QCD ( NRQCD) factorization formula. The short-distance coefficient of the order-v(4) color-singlet NRQCD matrix element is obtained through matching the decay rate of b (b) over bar(S-3(1)[1])-> c (c) over bar gg in full QCD to that in NRQCD. The double and single IR divergences appearing in the decay rate are exactly canceled through the next-to-next-to-leading-order renormalization of the operator O(S-3(1)[8]) and the next-to-leading-order renormalization of the operators O(P-3(J)[8]). To investigate the convergence of the relativistic expansion arising from the color-singlet contributions, we study the ratios of the order-v(2) and -v(4) color-singlet short-distance coefficients to the leading-order one. Our results indicate that though the order-v(4) color-singlet short-distance coefficient is quite large, the relativistic expansion for the color-singlet contributions in the process gamma -> c (c) over bar + X converges well due to a small value of v. In addition, we extrapolate the value of the mass ratio of the charm quark to the bottom quark, and find the relativistic corrections rise quickly with increase of the mass ratio.
收录类别SCI
WOS记录号WOS:000311807900006
引用统计
被引频次:1[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/311005/224626
专题中国科学院高能物理研究所_理论物理室_期刊论文
推荐引用方式
GB/T 7714
桑文龙;Sang, WL,Chen, HT,Chen, YQ. Order-v(4) relativistic corrections to gamma inclusive decay into a charm pair[J]. PHYSICAL REVIEW D,2012,86(11):114004.
APA 桑文龙;Sang, WL,Chen, HT,&Chen, YQ.(2012).Order-v(4) relativistic corrections to gamma inclusive decay into a charm pair.PHYSICAL REVIEW D,86(11),114004.
MLA 桑文龙;Sang, WL,et al."Order-v(4) relativistic corrections to gamma inclusive decay into a charm pair".PHYSICAL REVIEW D 86.11(2012):114004.
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
9878.pdf(334KB)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
[桑文龙;Sang, WL]的文章
[Chen, HT]的文章
[Chen, YQ]的文章
百度学术
百度学术中相似的文章
[桑文龙;Sang, WL]的文章
[Chen, HT]的文章
[Chen, YQ]的文章
必应学术
必应学术中相似的文章
[桑文龙;Sang, WL]的文章
[Chen, HT]的文章
[Chen, YQ]的文章
相关权益政策
暂无数据
收藏/分享
文件名: 9878.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。