$T_{\bar{c}\bar{s}1}^0$ production in the $B^+$ decays processes

TL;DR

This paper investigates the production of the cs state as a molecular meson in B+ decays using an effective Lagrangian approach, estimating branching ratios and proposing experimental searches at Belle II and LHCb.

Contribution

It introduces a novel study of cs production in B+ decays via meson loops, providing quantitative predictions for branching ratios and experimental search strategies.

Findings

Branching ratios estimated at 10^{-5} to 10^{-4}.

Proposed detection in B+ to D*+ D*- K+ decay channel.

Estimated fit fractions for cs in various processes.

Abstract

In the present work, we studied the \tcs state production through the meson loop mechanism in the $B^+$ meson decays, where \tcs is considered as a $\bar{D}K^*$ molecular state with $J^P=1^+$. By employing the effective Lagrangian approach, we estimated the branching ratio of the $B^+ \to D^+ T_{\bar{c}\bar{s}1}^0 $ and $B^+ \to D^{*+} T_{\bar{c}\bar{s}1}^0$ processes and found them to be on the order of $10^{-5}\sim 10^{-4}$. The fit fraction of \tcs in different processes was also estimated. We propose to search for \tcs in the $B^+ \to D^{*+}\bar{D}^{*-}K^+$ process, which should be accessible to the Belle II and LHCb Collaborations.