Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8184810 | Nuclear Physics B | 2018 | 16 Pages |
Abstract
Motivated by recent RD, RDâ and RJ/Ï anomalies in BâDââν¯â, BâDâââν¯â and BcâJ/Ïââν¯â decays, respectively, we study possible R-parity violating supersymmetric effects in BcâJ/Ïââν¯â,ηcââν¯â and ÎbâÎcââν¯â decays, which are also induced by bâcââν¯â at quark level. We find that (I) the constrained slepton exchange couplings λi33λËi23â²â involving in bâcÏâÎ½Â¯Ï transition from relevant latest experimental data still have quite large effects on all (differential) branching ratios and the normalized forward-backward asymmetries of the exclusive semileptonic bâcÏâÎ½Â¯Ï decays as well as the ratios of the (differential) branching ratios; (II) after satisfying the data of RD and RDâ, the upper limit of RJ/Ï, Rηc and RÎc could be increased by 10%, 112% and 24%, respectively, from their upper limits of the Standard Model predictions by the λi33λËâ²âi23 couplings. The results in this work could be used to probe R-parity violating effects and will correlate with searches for direct supersymmetric signals at the running LHCb and the forthcoming Belle-II.
Related Topics
Physical Sciences and Engineering
Mathematics
Mathematical Physics
Authors
Jie Zhu, Bin Wei, Jin-Huan Sheng, Ru-Min Wang, Yang Gao, Gong-Ru Lu,