17–21 Jul 2023
University of Southampton Highfield Campus
Europe/London timezone

Right handed sneutrino effect on the $b \to c l \bar\nu_l$ decays anomalies

18 Jul 2023, 17:00
20m
B100/3023

B100/3023

Parallel talks Flavour physics: Theory and Experiment Flavour physics: Theory and Experiment

Speakers

Dr Dris Boubaa (Department of Matter sciences, Faculty of Science and Technology, Abbes Laghrour University Of Khenchela, B.P. 1252 Road of Batna, Khenchela 40004, Algeria) Dris Boubaa (Department of Matter sciences, Faculty of Science and Technology, Abbes Laghrour University Of Khenchela, B.P. 1252 Road of Batna, Khenchela 40004, Algeria)

Description

We investigate the right handed sneutrino effect, in the framework of the $B−L$ extension of Minimal Supersymmetric Standard Model with Inverse Seesaw, on $b \to c l \bar\nu_l$ decays anomalies which has been recently measured in the lepton-universality ratios $\mathcal{R(D^{(*)})}=\mathcal{BR(B \to D^{(*)}\tau \bar\nu_{\tau})/BR(B \to D^{(*)}l \bar\nu_l)}$ ($l=e$ or $\mu$). Taking into account various constraints, we show that a right-handed sneutrino with light chargino and neutralino running in the lepton penguin is able to explain within 1σ the (averaged) measured values of $\mathcal{R(D^{(*)})}$.

Author

Dr Dris Boubaa (Department of Matter sciences, Faculty of Science and Technology, Abbes Laghrour University Of Khenchela, B.P. 1252 Road of Batna, Khenchela 40004, Algeria)

Co-authors

Prof. Shaaban Khalil Ibrahim (Center for Fundamental Physics, Zewail City of Science and Technology, Sheikh Zayed,12588, Giza, Egypt) Stefano Moretti (School of Physics and Astronomy, University of Southampton, Highfield, Southampton SO17 1BJ, United Kingdom) Cem Salih Un (Department of Physics, Bursa Uludağ University, TR16059 Bursa, Turkey)

Presentation materials