ITP OpenIR  > 理论物理所SCI论文
NRQCD factorization and universality of NRQCD matrix elements
Ma, JP; Si, ZG; Ma, JP , Acad Sinica, Inst Theoret Phys, Beijing 100080, Peoples R China.
2005
发表期刊PHYSICS LETTERS B
ISSN0370-2693
卷号625期号:40910页码:67-75
摘要The approach of nonrelativistic QCD (NRQCD) factorization was proposed to study inclusive production of a quarkonium. It is widely used and successful. However, a recent study of gluon fragmentation into a quarkonium at two-loop level,shows that the factorization is broken. It is suggested that the color-octet NRQCD matrix elements should be modified by adding a gauge link to restore the factorization. The modified matrix elements may have extra soft-divergences at one-loop level which the unmodified cannot have, and this can lead to a violation of the universality of these matrix elements. In this letter, we examine in detail the NRQCD factorization for inclusive quarkonium production in e+e(-) annihilation at one-loop level. Our results show that the factorization can be made without the modification of NRQCD matrix elements and it can also be made for relativistic corrections. It turns out that the suggested gauge link will not lead to nonzero contributions to color-octet NRQCD matrix elements at one-loop level and at any order of v. Therefore the universality holds at least at one-loop level. (c) 2005 Elsevier B.V. All rights reserved.
部门归属Acad Sinica, Inst Theoret Phys, Beijing 100080, Peoples R China; Shandong Univ, Dept Phys, Jinan 250100, Shandong, Peoples R China
关键词To-leading Order Root S=1.8 Tev Heavy Quarkonium p(p)Over-bar Collisions Gluon Fragmentation J/psi Qcd Annihilation Decay
学科领域Physics
URL查看原文
收录类别SCI
WOS记录号WOS:000232169300011
引用统计
被引频次:3[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/13736
专题理论物理所SCI论文
通讯作者Ma, JP , Acad Sinica, Inst Theoret Phys, Beijing 100080, Peoples R China.
推荐引用方式
GB/T 7714
Ma, JP,Si, ZG,Ma, JP , Acad Sinica, Inst Theoret Phys, Beijing 100080, Peoples R China.. NRQCD factorization and universality of NRQCD matrix elements[J]. PHYSICS LETTERS B,2005,625(40910):67-75.
APA Ma, JP,Si, ZG,&Ma, JP , Acad Sinica, Inst Theoret Phys, Beijing 100080, Peoples R China..(2005).NRQCD factorization and universality of NRQCD matrix elements.PHYSICS LETTERS B,625(40910),67-75.
MLA Ma, JP,et al."NRQCD factorization and universality of NRQCD matrix elements".PHYSICS LETTERS B 625.40910(2005):67-75.
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
NRQCD factorization (159KB) 开放获取使用许可请求全文
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
[Ma, JP]的文章
[Si, ZG]的文章
[Ma, JP , Acad Sinica, Inst Theoret Phys, Beijing 100080, Peoples R China.]的文章
百度学术
百度学术中相似的文章
[Ma, JP]的文章
[Si, ZG]的文章
[Ma, JP , Acad Sinica, Inst Theoret Phys, Beijing 100080, Peoples R China.]的文章
必应学术
必应学术中相似的文章
[Ma, JP]的文章
[Si, ZG]的文章
[Ma, JP , Acad Sinica, Inst Theoret Phys, Beijing 100080, Peoples R China.]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。