Three-body decays B -> phi(rho)K gamma in perturbative QCD approach

doi:10.1103/PhysRevD.97.034033

	Three-body decays B -> phi(rho)K gamma in perturbative QCD approach
	Liu, JB; Li, HN; Lu, CD; Wang C(王超); Liu JB(刘景斌); Lv CD(吕才典); Wang, C
刊名	PHYSICAL REVIEW D
	2018
卷号	97 期号:3 页码:34033
ISSN号	2470-0010
DOI	10.1103/PhysRevD.97.034033
文献子类	Article
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.
电子版国际标准刊号	2470-0029
WOS关键词	AXIAL-VECTOR MESONS ; EVOLUTION-EQUATIONS ; STANDARD MODEL ; PI-PI ; THRESHOLD
WOS研究方向	Astronomy & Astrophysics ; Physics
语种	英语
WOS记录号	WOS:000426170300005
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/285674]
专题	高能物理研究所_理论物理室
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	Liu, JB,Li, HN,Lu, CD,et al. Three-body decays B -> phi(rho)K gamma in perturbative QCD approach[J]. PHYSICAL REVIEW D,2018,97(3):34033.
APA	Liu, JB.,Li, HN.,Lu, CD.,王超.,刘景斌.,...&Wang, C.(2018).Three-body decays B -> phi(rho)K gamma in perturbative QCD approach.PHYSICAL REVIEW D,97(3),34033.
MLA	Liu, JB,et al."Three-body decays B -> phi(rho)K gamma in perturbative QCD approach".PHYSICAL REVIEW D 97.3(2018):34033.