Transverse momentum dependent factorization for radiative leptonic decay of B-meson
Transverse momentum dependent factorization for radiative leptonic decay of B-meson
复制标题
B 介子辐射轻子衰变的横向动量相关分解
DOI:
10.1088/1126-6708/2006/01/067
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发表时间:
2005-10
影响因子:
5.4
通讯作者:
中科院分区:
文献类型:
--
作者:
With a consistent definition of transverse-momentum-dependent(TMD) light-cone wave function of B-meson, we show that the amplitude of the radiative leptonic B-decay can be factorized at one-loop level as a convolution with the wave function and a perturbative coeffcient function, combined with a soft factor. In this TMD factorization, the transverse momenta of partons in the B-meson are taken into account and all soft divergences are contained in the wave function and the soft factor. The coeffcient function is infrared-safe. The factorization works on a diagram-by-diagram basis and is possible to extend beyond one loop. With the factorization the large logarithms in the perturbative function can be simply resummed. Our work shows that the result of collinear factorization for the decay can be derived from that of TMD factorization. Therefore, the two factorizations for the case here are simply related to each other.
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影响因子:
5
作者:
T. Kurimoto;Hsiang-nan Li;A. Sanda
通讯作者:
T. Kurimoto;Hsiang-nan Li;A. Sanda
影响因子:
5
作者:
M. Nagashima;Hsiang-nan Li
通讯作者:
M. Nagashima;Hsiang-nan Li
影响因子:
5
作者:
C. Bauer;S. Fleming;D. Pirjol;I. Rothstein;I. Stewart
通讯作者:
C. Bauer;S. Fleming;D. Pirjol;I. Rothstein;I. Stewart
DOI:
10.1016/j.nuclphysb.2004.04.025
发表时间:
2003-11
期刊:
Nuclear Physics
影响因子:
--
作者:
B. Lange;M. Neubert
通讯作者:
B. Lange;M. Neubert
DOI:
10.1016/0550-3213(81)90339-4
发表时间:
1981-12
期刊:
Nuclear Physics
影响因子:
--
作者:
J. Collins;D. Soper
通讯作者:
J. Collins;D. Soper