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题名: Transverse-momentum dependent factorization for gamma(*)pi(0)->gamma
作者: Ma, J. P. ;  Wang, Q.
刊名: PHYSICAL REVIEW D
出版日期: 2007
卷号: 75, 期号:1, 页码:-
关键词: TRANSITION FORM-FACTORS ;  CONE WAVE-FUNCTION ;  B-MESON DECAYS ;  TO-BACK JETS ;  QCD FACTORIZATION ;  PERTURBATIVE QCD ;  EXCLUSIVE PROCESSES ;  AMPLITUDES ;  EXTRACTION ;  BEHAVIOR
学科分类: Physics
通讯作者: Ma, JP , Acad Sinica, Inst Theoret Phys, Beijing 100080, Peoples R China
部门归属: Acad Sinica, Inst Theoret Phys, Beijing 100080, Peoples R China; Nanjing Normal Univ, Dept Phys, Nanjing 210097, Jiangsu, Peoples R China; Nanjing Normal Univ, Inst Theoret Phys, Nanjing 210097, Jiangsu, Peoples R China
英文摘要: With a consistent definition of transverse-momentum dependent (TMD) light-cone wave function, we show that the amplitude for the process gamma(*)pi(0)->gamma can be factorized when the virtuality of the initial photon is large. In contrast to the collinear factorization in which the amplitude is factorized as a convolution of the standard light-cone wave function and a hard part, the TMD factorization yields a convolution of a TMD light-cone wave function, a soft factor and a hard part. We explicitly show that the TMD factorization holds at one-loop level. It is expected that the factorization holds beyond one-loop level because the cancellation of soft divergences is on a diagram-by-diagram basis. We also show that the TMD factorization helps to resum large logarithms of type ln(2)x.
收录类别: SCI
原文出处: 查看原文
WOS记录号: WOS:000243896200044
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/5802
Appears in Collections:理论物理所1978-2010年知识产出_期刊论文

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Recommended Citation:
Ma, J. P.,Wang, Q.. Transverse-momentum dependent factorization for gamma(*)pi(0)->gamma[J]. PHYSICAL REVIEW D,2007,75(1):-.
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