Unravelling theoretical challenges in understanding $B_c$ meson decay

TL;DR

This paper reviews the current understanding of $B_c$ meson production and decay, introduces new ratios in decay modes, and discusses CP effects, highlighting the importance of future collider experiments for probing Standard Model predictions.

Contribution

It presents novel ratios in $B_c$ decay modes and explores CP effects, advancing theoretical modeling and understanding of heavy flavor physics.

Findings

New ratios $( ext{R}_{ ext{η}_c/J/ψ}$, $ ext{R}_{D/D^*})$ in semileptonic decays

Ratios $( ext{R}_ ext{μ}^ ext{τ})^{B_c}$ and $( ext{R}_ ext{μ}^ ext{τ})^{B_c^*}$ in leptonic decays

Refined understanding of CP effects in $B_c$ decays

Abstract

The $B_c$ meson, a unique bound state comprising of two open heavy flavors, charm and bottom, offers a rich avenue for probing the predictions of the Next Decade - Standard Model (ND-SM) physics properties due to its heavy mass. With recent observations of its excited states, interest in understanding $B_c$ production mechanisms and decay modes has surged. This article presents the current state of art on $B_c$ mesons, encompassing production mechanisms, properties of different decay modes, and theoretical modeling. We present novel findings on the newly constructed ratios $(\mathcal{R}_{\eta_c/J/\psi}$, $\mathcal{R}_{D/D^*})$ in semileptonic and ($\mathcal{R}_\mu^\tau)^{B_c}$ , ($\mathcal{R}_\mu^\tau)^{B_c^*}$ in leptonic decays, respectively. These results emphasize the importance of $B_c$ studies in the future collider experiments. The article further explores CP effects in $B_c$ meson decays refining our understanding of heavy flavor properties. Finally, potential avenues for future research, and leveraging upcoming collider experiments are outlined.