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B -> K*gamma in the light-cone QCD sum rule
黄涛(理); Li ZH(李作宏); Huang, T; Li, ZH
Source PublicationPHYSICAL REVIEW D
Corresponding AuthorAcad Sinica, Inst High Energy Phys, Beijing 100039, Peoples R China ; CCAST, World Lab, Beijing 100080, Peoples R China
AbstractA new estimate of the electromagnetic penguin operator contribution to B-->K*gamma is proposed by using the light-cone QCD sum rule. We improve the previous investigation of Ali, Braun and Simma by proper choices of the current operators in the correlator. The reasonable estimates of the b-quark pole mass m(b) and decay constant f(B) are also given. Numerically, we find that the form factor FB-->K*(0) = 0.34 +/- 0.05 and the branching ratio B(B-->K*gamma) = (5.1 +/- 1.7) X 10(-5), with a b-quark pole mass m(b) = 4.7-4.9 GeV. Our results are different from those of Ali et al., but the resulting branching ratio is still comparable with the experimental observation.
Subject AreaAstronomy & Astrophysics; Physics
WOS Research AreaAstronomy & Astrophysics ; Physics
WOS SubjectAstronomy & Astrophysics ; Physics, Particles & Fields
WOS IDWOS:000071834800069
ADS Bibcode1998PhRvD..57.1993H
ADS URLhttps://ui.adsabs.harvard.edu/abs/1998PhRvD..57.1993H
ADS CITATIONShttps://ui.adsabs.harvard.edu/abs/1998PhRvD..57.1993H/citations
Citation statistics
Cited Times:33 [INSPIRE]
Cited Times:32 [ADS]
Document Type期刊论文
First Author AffilicationInstitute of High Energy
Recommended Citation
GB/T 7714
Huang T,Li ZH,Huang, T,et al. B -> K*gamma in the light-cone QCD sum rule[J]. PHYSICAL REVIEW D,1998,57(3):1993-1996.
APA 黄涛,李作宏,Huang, T,&Li, ZH.(1998).B -> K*gamma in the light-cone QCD sum rule.PHYSICAL REVIEW D,57(3),1993-1996.
MLA 黄涛,et al."B -> K*gamma in the light-cone QCD sum rule".PHYSICAL REVIEW D 57.3(1998):1993-1996.
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