Probing the Effects of New Physics in B¯⁎→Plν¯l Decays
Joint Authors
Wang, Na
Chang, Qin
Wang, Rumin
Zhu, Jie
Source
Advances in High Energy Physics
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-13, 13 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-09-27
Country of Publication
Egypt
No. of Pages
13
Main Subjects
Abstract EN
The significant divergence between the SM predictions and experimental measurements for the ratios, RD(⁎)≡B(B¯→D(⁎)τ-ν¯τ)/B(B¯→D(⁎)l′-ν¯l′) with (l′=e,μ), implies possible hint of new physics in the flavor sector.
In this paper, motivated by the “RD(⁎) puzzle” and abundant B⁎ data samples at high-luminosity heavy-flavor experiments in the future, we try to probe possible effects of new physics in the semileptonic B¯u,d,s⁎→Pl-ν¯l (P=D,Ds,π,K) decays induced by b→(u,c)l-ν¯l transitions in the model-independent vector and scalar scenarios.
Using the spaces of NP parameters obtained by fitting to the data of RD and RD⁎, the NP effects on the observables including branching fraction, ratio RP⁎, lepton spin asymmetry, and lepton forward-backward asymmetry are studied in detail.
We find that the vector type couplings have large effects on the branching fraction and ratio RP⁎.
Meanwhile, the scalar type couplings provide significant contributions to all of the observables.
The future measurements of these observables in the B¯⁎→Pl-ν¯l decays at the LHCb and Belle-II could provide a way to crosscheck the various NP solutions to the “RD(⁎) puzzle”.
American Psychological Association (APA)
Chang, Qin& Zhu, Jie& Wang, Na& Wang, Rumin. 2018. Probing the Effects of New Physics in B¯⁎→Plν¯l Decays. Advances in High Energy Physics،Vol. 2018, no. 2018, pp.1-13.
https://search.emarefa.net/detail/BIM-1118205
Modern Language Association (MLA)
Chang, Qin…[et al.]. Probing the Effects of New Physics in B¯⁎→Plν¯l Decays. Advances in High Energy Physics No. 2018 (2018), pp.1-13.
https://search.emarefa.net/detail/BIM-1118205
American Medical Association (AMA)
Chang, Qin& Zhu, Jie& Wang, Na& Wang, Rumin. Probing the Effects of New Physics in B¯⁎→Plν¯l Decays. Advances in High Energy Physics. 2018. Vol. 2018, no. 2018, pp.1-13.
https://search.emarefa.net/detail/BIM-1118205
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1118205