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Ma, J. P.; Wang, Q.; Ma, JP , Acad Sinica, Inst Theoret Phys, Beijing 100080, Peoples R China
Transverse-momentum dependent factorization for gamma(*)pi(0)->gamma
发表期刊PHYSICAL REVIEW D
关键词Transition Form-factors Cone Wave-function B-meson Decays To-back Jets Qcd Factorization Perturbative Qcd Exclusive Processes Amplitudes Extraction Behavior
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.
2007
ISSN1550-7998
卷号75期号:1页码:-
学科领域Physics
收录类别SCI
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文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/5802
专题理论物理所科研产出_SCI论文
通讯作者Ma, JP , Acad Sinica, Inst Theoret Phys, Beijing 100080, Peoples R China
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GB/T 7714
Ma, J. P.,Wang, Q.,Ma, JP , Acad Sinica, Inst Theoret Phys, Beijing 100080, Peoples R China. Transverse-momentum dependent factorization for gamma(*)pi(0)->gamma[J]. PHYSICAL REVIEW D,2007,75(1):-.
APA Ma, J. P.,Wang, Q.,&Ma, JP , Acad Sinica, Inst Theoret Phys, Beijing 100080, Peoples R China.(2007).Transverse-momentum dependent factorization for gamma(*)pi(0)->gamma.PHYSICAL REVIEW D,75(1),-.
MLA Ma, J. P.,et al."Transverse-momentum dependent factorization for gamma(*)pi(0)->gamma".PHYSICAL REVIEW D 75.1(2007):-.
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