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B -> K pi decays with 1/m(b) corrections in QCD factorization
黄涛(理); Li L(李林); Huang, T; Li, L; Li, XQ; Li, ZH; Wu, XY
Source PublicationPHYSICAL REVIEW D
Corresponding AuthorCCAST, World Lab, Beijing 100080, Peoples R China ; Inst High Energy Phys, Beijing 100039, Peoples R China ; Nankai Univ, Dept Phys, Tianjin 300071, Peoples R China ; Yantai Univ, Dept Phys, Yantai 264005, Peoples R China
AbstractA careful investigation of 1/m(b) power-suppressed effects is crucial for enhancing predictive power of the QCD factorization approach to charmless B decays. It is instructive to systematically investigate the 1/m(b) effects from soft- and hard-gluon exchanges, in addition to annihilation topology in the charmless B decays. In this work we try to give a systematic discussion on impact of such soft and hard exchanges on the penguin-dominated B-->Kpi decays within the framework of the light-cone QCD sum rules (LCSR). For the weak phase gamma(=ImV(ub)(*)) ranging from 40degrees to 80degrees, we find that because of the annihilation and soft and hard exchanges a numerical increase of 20-30% is expected in the branching ratios up to O(1/m(b)(2)) corrections; the resultant soft and hard corrections are less important than the annihilation contributions and amount only to a level of 10%. Possible sources of uncertainties are discussed in some details.
Subject AreaAstronomy & Astrophysics; Physics
WOS Research AreaAstronomy & Astrophysics ; Physics
WOS SubjectAstronomy & Astrophysics ; Physics, Particles & Fields
WOS IDWOS:000225440600049
ADS Bibcode2004PhRvD..70i4013H
ADS URLhttps://ui.adsabs.harvard.edu/abs/2004PhRvD..70i4013H
ADS CITATIONShttps://ui.adsabs.harvard.edu/abs/2004PhRvD..70i4013H/citations
Citation statistics
Cited Times:4 [INSPIRE]
Cited Times:4 [ADS]
Document Type期刊论文
First Author AffilicationInstitute of High Energy
Recommended Citation
GB/T 7714
Huang T,Li L,Huang, T,et al. B -> K pi decays with 1/m(b) corrections in QCD factorization[J]. PHYSICAL REVIEW D,2004,70(9):94013.
APA 黄涛.,李林.,Huang, T.,Li, L.,Li, XQ.,...&Wu, XY.(2004).B -> K pi decays with 1/m(b) corrections in QCD factorization.PHYSICAL REVIEW D,70(9),94013.
MLA 黄涛,et al."B -> K pi decays with 1/m(b) corrections in QCD factorization".PHYSICAL REVIEW D 70.9(2004):94013.
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