Search for $B_c^+$ decays to two charm mesons

TL;DR

This paper reports the first search for specific $B_c^+$ meson decays into two charm mesons using LHCb data, setting limits on twelve decay modes due to no observed signals.

Contribution

It is the first experimental search for these $B_c^+$ decay modes, providing new limits and insights into charm meson decay channels.

Findings

No evidence for the targeted $B_c^+$ decays was observed.

Limits were set on twelve different $B_c^+$ decay modes.

The analysis used 3.0 fb$^{-1}$ of LHCb data at 7 and 8 TeV.

Abstract

A search for decays of $B_c^+$ mesons to two charm mesons is performed for the first time using data corresponding to an integrated luminosity of 3.0 fb$^{-1}$, collected by the LHCb experiment in $pp$ collisions at centre-of-mass energies of 7 and 8 TeV. The decays considered are $B_c^+\to D^{(*)+}_{(s)} \overline{D}^{(*)0}$ and $B_c^+\to D^{(*)+}_{(s)} D^{(*)0}$, which are normalised to high-yield $B^+\to D^+_{(s)} \overline{D}^0$ decays. No evidence for a signal is found and limits are set on twelve $B_c^+$ decay modes.