XXVI DAE-BRNS High Energy Physics Symposium 2024

Dark $Z$ and dark photon effects on $B_c \to D_s^{(*)} \mu^+ \mu^- (\nu_\ell \bar \nu_\ell)$ decay modes

Not scheduled

20m

Swatantrata Bhavan, Banaras Hindu University, Varanasi

Oral Quark and lepton flavour physics

Speaker

Suchismita Sahoo

Description

We explore the role of dark matter in connection with flavor physics by using the dark force carriers, dark $Z$ and dark photon. We perform a global fit to the new parameters using existing data on $b \to s \mu^+ \mu^-$ transitions. With these constrained parameters, we examine the improvements in the branching ratios and angular observables of the semileptonic $B_c \to D_{s}^{(*)} \mu^+ \mu^- (\nu_\ell \bar \nu_\ell) $ decay modes relative to Standard Model predictions.