Radiative leptonic decay B -> gamma lv(l) with subleading power corrections

doi:10.1007/JHEP07(2018)154

	Radiative leptonic decay B -> gamma lv(l) with subleading power corrections
	Braun, VM; Beneke, M; Wei YB(魏焰冰); Wei, YB; Ji, Y
刊名	JOURNAL OF HIGH ENERGY PHYSICS
	2018
期号	7 页码:154
关键词	Heavy Quark Physics Perturbative QCD Resummation
ISSN号	1029-8479
DOI	10.1007/JHEP07(2018)154
文献子类	Article
英文摘要	We reconsider the QCD predictions for the radiative decay B -> gamma lv(l) with an energetic photon in the fi nal state by taking into account the 1/E-gamma, 1/m(b) power-suppressed hard-collinear and soft corrections from higher-twist B-meson light-cone distribution amplitudes (LCDAs). The soft contribution is estimated through a dispersion relation and light-cone QCD sum rules. The analysis of theoretical uncertainties and the dependence of the decay form factors on the leading-twist LCDA phi+(omega) shows that the latter dominates. The radiative leptonic decay is therefore well suited to constrain the parameters of phi+(omega), including the fi rst inverse moment, 1/lambda(B), from the expected high-statistics data of the BELLE II experiment.
WOS关键词	MESON DISTRIBUTION AMPLITUDE ; FORM-FACTORS ; SUM-RULES ; HEAVY-QUARK ; QCD ; FACTORIZATION ; SYMMETRY
WOS研究方向	Physics
语种	英语
WOS记录号	WOS:000439661200001
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/286141]
专题	高能物理研究所_理论物理室
通讯作者	Wei YB(魏焰冰)
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	Braun, VM,Beneke, M,Wei YB,et al. Radiative leptonic decay B -> gamma lv(l) with subleading power corrections[J]. JOURNAL OF HIGH ENERGY PHYSICS,2018(7):154.
APA	Braun, VM,Beneke, M,魏焰冰,Wei, YB,&Ji, Y.(2018).Radiative leptonic decay B -> gamma lv(l) with subleading power corrections.JOURNAL OF HIGH ENERGY PHYSICS(7),154.
MLA	Braun, VM,et al."Radiative leptonic decay B -> gamma lv(l) with subleading power corrections".JOURNAL OF HIGH ENERGY PHYSICS .7(2018):154.