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Charmless B-(s) -> VV decays in factorization-assisted topological-amplitude approach
Wang C(王超); Zhang QA(张其安); Wang, C; Zhang, QA; Li, Y; Lu, CD; Lv CD(吕才典)
2017
Source PublicationEUROPEAN PHYSICAL JOURNAL C
ISSN1434-6044
EISSN1434-6052
Volume77Issue:5Pages:333
SubtypeArticle
AbstractWithin the factorization-assisted topological-amplitude approach, we studied the 33 charmless B-(s) -> VV decays, where V stands for a light vector meson. According to the flavor flows, the amplitude of each process can be decomposed into eight different topologies. In contrast to the conventional flavor diagrammatic approach, we further factorize each topological amplitude into decay constant, form factors and unknown universal parameters. By chi(2) fitting 46 experimental observables, we extracted 10 theoretical parameters with chi(2) per degree of freedom around 2. Using the fitted parameters, we calculated the branching fractions, polarization fractions, CP asymmetries and relative phases between polarization amplitudes of each decay mode. The decay channels dominated by tree diagram have large branching fractions and large longitudinal polarization fraction. The branching fractions and longitudinal polarization fractions of color-suppressed decays become smaller. Current experimental data of large transverse polarization fractions in the penguin dominant decay channels can be explained by only one transverse amplitude of penguin annihilation diagram. Our predictions of the not yet measured channels can be tested in the ongoing LHCb experiment and the Belle-II experiment in the future.
DOI10.1140/epjc/s10052-017-4889-3
WOS KeywordCOLLINEAR EFFECTIVE THEORY ; B-MESONS ; QCD FACTORIZATION ; QUARK ; POLARIZATION
Indexed BySCI ; SCOPUS ; ADS ; INSPIREHEP
Language英语
WOS Research AreaPhysics
WOS SubjectPhysics, Particles & Fields
WOS IDWOS:000411292800001
ADS Bibcode2017EPJC...77..333W
ADS URLhttps://ui.adsabs.harvard.edu/abs/2017EPJC...77..333W
ADS CITATIONShttps://ui.adsabs.harvard.edu/abs/2017EPJC...77..333W/citations
AXRIV CODE171
inspireid1507890
inspireURLhttps://inspirehep.net/record/1507890
Citation statistics
Cited Times:21 [INSPIRE]
Cited Times:33 [ADS]
Document Type期刊论文
Identifierhttp://ir.ihep.ac.cn/handle/311005/284440
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,Zhang QA,Wang, C,et al. Charmless B-(s) -> VV decays in factorization-assisted topological-amplitude approach[J]. EUROPEAN PHYSICAL JOURNAL C,2017,77(5):333.
APA 王超.,张其安.,Wang, C.,Zhang, QA.,Li, Y.,...&吕才典.(2017).Charmless B-(s) -> VV decays in factorization-assisted topological-amplitude approach.EUROPEAN PHYSICAL JOURNAL C,77(5),333.
MLA 王超,et al."Charmless B-(s) -> VV decays in factorization-assisted topological-amplitude approach".EUROPEAN PHYSICAL JOURNAL C 77.5(2017):333.
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