Probing the Effects of New Physics in B¯⁎→Plν¯l Decays
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-lu...
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2018-01-01
|
| Series: | Advances in High Energy Physics |
| Online Access: | http://dx.doi.org/10.1155/2018/7231354 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850158314115039232 |
|---|---|
| author | Qin Chang Jie Zhu Na Wang Ru-Min Wang |
| author_facet | Qin Chang Jie Zhu Na Wang Ru-Min Wang |
| author_sort | Qin Chang |
| collection | DOAJ |
| description | 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”. |
| format | Article |
| id | doaj-art-697027308a3d4b37b1f0cd26e5bc5c73 |
| institution | OA Journals |
| issn | 1687-7357 1687-7365 |
| language | English |
| publishDate | 2018-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in High Energy Physics |
| spelling | doaj-art-697027308a3d4b37b1f0cd26e5bc5c732025-08-20T02:23:55ZengWileyAdvances in High Energy Physics1687-73571687-73652018-01-01201810.1155/2018/72313547231354Probing the Effects of New Physics in B¯⁎→Plν¯l DecaysQin Chang0Jie Zhu1Na Wang2Ru-Min Wang3Institute of Particle and Nuclear Physics, Henan Normal University, Henan 453007, ChinaInstitute of Particle and Nuclear Physics, Henan Normal University, Henan 453007, ChinaInstitute of Particle and Nuclear Physics, Henan Normal University, Henan 453007, ChinaInstitute of Theoretical Physics, Xinyang Normal University, Henan 464000, ChinaThe 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”.http://dx.doi.org/10.1155/2018/7231354 |
| spellingShingle | Qin Chang Jie Zhu Na Wang Ru-Min Wang Probing the Effects of New Physics in B¯⁎→Plν¯l Decays Advances in High Energy Physics |
| title | Probing the Effects of New Physics in B¯⁎→Plν¯l Decays |
| title_full | Probing the Effects of New Physics in B¯⁎→Plν¯l Decays |
| title_fullStr | Probing the Effects of New Physics in B¯⁎→Plν¯l Decays |
| title_full_unstemmed | Probing the Effects of New Physics in B¯⁎→Plν¯l Decays |
| title_short | Probing the Effects of New Physics in B¯⁎→Plν¯l Decays |
| title_sort | probing the effects of new physics in b¯ plν¯l decays |
| url | http://dx.doi.org/10.1155/2018/7231354 |
| work_keys_str_mv | AT qinchang probingtheeffectsofnewphysicsinbplnldecays AT jiezhu probingtheeffectsofnewphysicsinbplnldecays AT nawang probingtheeffectsofnewphysicsinbplnldecays AT ruminwang probingtheeffectsofnewphysicsinbplnldecays |