IHEP OpenIR  > 理论物理室
Next-to-leading-order correction to pion form factor in k(T) factorization
Li, HN; Shen, YL; Wang YM(王玉明); Zou H(邹浩); Wang, YM; Zou, H
2011
发表期刊PHYSICAL REVIEW D
卷号83期号:5页码:54029
通讯作者[Li, Hsiang-nan ; Shen, Yue-Long] Acad Sinica, Inst Phys, Taipei 115, Taiwan ; [Li, Hsiang-nan] Natl Cheng Kung Univ, Dept Phys, Tainan 701, Taiwan ; [Li, Hsiang-nan] Natl Tsing Hua Univ, Dept Phys, Hsinchu 300, Taiwan ; [Shen, Yue-Long] Ocean Univ China, Coll Informat Sci & Engn, Qingdao 266100, Shandong, Peoples R China ; [Wang, Yu-Ming] Univ Siegen, Fachbereich Phys, D-57068 Siegen, Germany ; [Wang, Yu-Ming ; Zou, Hao] Ctr Sci Facil, Inst High Energy Phys & Theoret Phys, Beijing 100049, Peoples R China
文章类型Article
摘要We calculate the next-to-leading-order (NLO) correction to the pion electromagnetic form factor at leading twist in the k(T) factorization theorem. Partons off-shell by k(T)(2) are considered in both quark diagrams and effective diagrams for the transverse-momentum-dependent pion wave function. The light-cone singularities in the transverse-momentum-dependent pion wave function are regularized by rotating the Wilson lines away from the light cone. The soft divergences from gluon exchanges among initial-and fal-state partons cancel exactly. We derive the infrared-finite k(T)-dependent NLO hard kernel for the pion electromagnetic form factor by taking the difference of the above two sets of diagrams. Varying the renormalization and factorization scales, we find that the NLO correction is smaller, when both the scales are set to the invariant masses of internal particles: it becomes lower than 40% of the leading-order contribution for momentum transfer squared Q(2) > 7 GeV2. It is observed that the NLO leading-twist correction does not play an essential role in explaining the experimental data, but the leading-order higher-twist contribution does.
学科领域Astronomy & Astrophysics; Physics
DOI10.1103/PhysRevD.83.054029
URL查看原文
语种英语
WOS研究方向Astronomy & Astrophysics ; Physics
WOS类目Astronomy & Astrophysics ; Physics, Particles & Fields
WOS记录号WOS:000288999000001
引用统计
被引频次:33[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/311005/240671
专题理论物理室
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
Li, HN,Shen, YL,Wang YM,et al. Next-to-leading-order correction to pion form factor in k(T) factorization[J]. PHYSICAL REVIEW D,2011,83(5):54029.
APA Li, HN,Shen, YL,王玉明,邹浩,Wang, YM,&Zou, H.(2011).Next-to-leading-order correction to pion form factor in k(T) factorization.PHYSICAL REVIEW D,83(5),54029.
MLA Li, HN,et al."Next-to-leading-order correction to pion form factor in k(T) factorization".PHYSICAL REVIEW D 83.5(2011):54029.
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
9191.pdf(511KB)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
[Li, HN]的文章
[Shen, YL]的文章
[王玉明]的文章
百度学术
百度学术中相似的文章
[Li, HN]的文章
[Shen, YL]的文章
[王玉明]的文章
必应学术
必应学术中相似的文章
[Li, HN]的文章
[Shen, YL]的文章
[王玉明]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。