(Formula Presented) excesses in ALRSM constrained from B, D decays and (Formula Presented) mixing

Abstract: Recent experimental results from the LHCb, BaBar and Belle collaborations on the semitauonic decays of B meson, (Formula Presented), showing a significant deviation from the Standard Model (SM), hint towards a new physics scenario beyond the SM. In this work, we show that these enhanced decay rates can be explained within the framework of E<inf>6</inf> motivated Alternative Left-Right Symmetric Model (ALRSM), which has been successful in explaining the recent CMS excesses and has the feature of accommodating high scale leptogenesis. The R-parity conserving couplings in ALRSM can contribute universally to both (Formula Presented) and (Formula Presented) via the exchange of scalar leptoquarks. We study the leptonic decays (Formula Presented), (Formula Presented), (Formula Presented) and (Formula Presented) mixing to constrain the couplings involved in explaining the enhanced B decay rates and we find that ALRSM can explain the current experimental data on (Formula Presented) quite well while satisfying these constraints.