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Three-body decays B -> phi(rho)K gamma in perturbative QCD approach
Wang C(王超); Liu JB(刘景斌); Lv CD(吕才典); Wang, C; Liu, JB; Li, HN; Lu, CD
2018
Source PublicationPHYSICAL REVIEW D
ISSN2470-0010
EISSN2470-0029
Volume97Issue:3Pages:34033
SubtypeArticle
AbstractWe 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.
DOI10.1103/PhysRevD.97.034033
WOS KeywordAXIAL-VECTOR MESONS ; EVOLUTION-EQUATIONS ; STANDARD MODEL ; PI-PI ; THRESHOLD
Indexed BySCI
Language英语
WOS Research AreaAstronomy & Astrophysics ; Physics
WOS SubjectAstronomy & Astrophysics ; Physics, Particles & Fields
WOS IDWOS:000426170300005
ADS Bibcode2018PhRvD..97c4033W
AXRIV CODE1711
inspireid1639472
Citation statistics
Cited Times:17 [ADS]
Document Type期刊论文
Identifierhttp://ir.ihep.ac.cn/handle/311005/285674
Collection理论物理室
Affiliation中国科学院高能物理研究所
First Author AffilicationInstitute of High Energy
Recommended Citation
GB/T 7714
Wang C,Liu JB,Lv CD,et al. Three-body decays B -> phi(rho)K gamma in perturbative QCD approach[J]. PHYSICAL REVIEW D,2018,97(3):34033.
APA 王超.,刘景斌.,吕才典.,Wang, C.,Liu, JB.,...&Lu, CD.(2018).Three-body decays B -> phi(rho)K gamma in perturbative QCD approach.PHYSICAL REVIEW D,97(3),34033.
MLA 王超,et al."Three-body decays B -> phi(rho)K gamma in perturbative QCD approach".PHYSICAL REVIEW D 97.3(2018):34033.
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