Search for the decay $B_s^0 \to \overline{D}^{0} f_{0}(980)$

TL;DR

This study searches for the decay $B_s^0 o ar{D}^0 f_0(980)$ using LHCb data, finds no significant signal, and sets the first upper limits on its branching fraction.

Contribution

First search for the decay $B_s^0 o ar{D}^0 f_0(980)$ and establishment of upper limits on its branching fraction.

Findings

No significant signal observed.

Upper limits on branching fraction set at 90% and 95% confidence levels.

Abstract

A search for $B_s^0 \to \overline{D}^{0} f_{0}(980)$ decays is performed using $3.0\, {\rm fb}^{-1}$ of $pp$ collision data recorded by the LHCb experiment during 2011 and 2012. The $f_{0}(980)$ meson is reconstructed through its decay to the $\pi^{+}\pi^{-}$ final state in the mass window $900\, {\rm MeV}/c^{2} < m(\pi^{+}\pi^{-}) < 1080\, {\rm MeV}/c^{2}$. No significant signal is observed. The first upper limits on the branching fraction of $\mathcal{B}(B_s^0 \to \overline{D}^{0} f_{0}(980)) < 3.1\,(3.4) \times 10^{-6}$ are set at $90\,\%$ ($95\,\%$) confidence level.