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	Three-body decays b -> phi(rho)k gamma in perturbative qcd approach
	Wang, Chao1,2; Liu, Jing-Bin1,2; Li, Hsiang-nan3; Lu, Cai-Dian1,2
刊名	Physical review d
	2018-02-27
卷号	97期号:3页码:16
ISSN号	2470-0010
DOI	10.1103/physrevd.97.034033
通讯作者	Wang, chao(wangchao88@ihep.ac.cn) ; Liu, jing-bin(liujb@ihep.ac.cn) ; Li, hsiang-nan(hnli@phys.sinica.edu.tw) ; Lu, cai-dian(lucd@ihep.ac.cn)
英文摘要	We study the three-body radiative decays b -> phi(rho)k gamma induced by a flavor-changing neutral current in the perturbative qcd approach. pseudoscalar-vector (pv) distribution amplitudes (das) are introduced for the final-state phi k (rho k) pair to capture important infrared dynamics in the region with a small pv-pair invariant mass. the dependence of these pv das on the parton momentum fraction is parametrized in terms of the gegenbauer polynomials, and the dependence on the meson momentum fraction is derived through their normalizations to timelike pv form factors. in addition to the dominant electromagnetic penguin, the subleading chromomagnetic penguin, quark-loop and annihilation diagrams are also calculated. after determining the pv das from relevant branching-ratio data, the direct cp asymmetries and decay spectra in the pv-pair invariant mass are predicted for each b -> phi(rho)k gamma mode.
WOS关键词	AXIAL-VECTOR MESONS ; EVOLUTION-EQUATIONS ; STANDARD MODEL ; PI-PI ; THRESHOLD
WOS研究方向	Astronomy & Astrophysics ; Physics
WOS类目	Astronomy & Astrophysics ; Physics, Particles & Fields
语种	英语
出版者	AMER PHYSICAL SOC
WOS记录号	WOS:000426170300005
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2177955
专题	高能物理研究所
通讯作者	Wang, Chao; Liu, Jing-Bin; Li, Hsiang-nan; Lu, Cai-Dian
作者单位	1.Chinese Acad Sci, Inst High Energy Phys, POB 918, Beijing 100049, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Acad Sinica, Inst Phys, Taipei 115, Taiwan
推荐引用方式 GB/T 7714	Wang, Chao,Liu, Jing-Bin,Li, Hsiang-nan,et al. Three-body decays b -> phi(rho)k gamma in perturbative qcd approach[J]. Physical review d,2018,97(3):16.
APA	Wang, Chao,Liu, Jing-Bin,Li, Hsiang-nan,&Lu, Cai-Dian.(2018).Three-body decays b -> phi(rho)k gamma in perturbative qcd approach.Physical review d,97(3),16.
MLA	Wang, Chao,et al."Three-body decays b -> phi(rho)k gamma in perturbative qcd approach".Physical review d 97.3(2018):16.

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