Placing of the recently observed bottom strange state $B_{sJ}(6063)$ and $B_{sJ}(6114)$ in bottom spectra

Abstract

We have employed HQET to give the spin-parity quantum numbers for recently observed bottom strange states $B_{sJ}(6063)$ and $B_{sJ}(6114)$ by LHCb collaborations. By exploring flavour independent parameters ${\Delta }_F^{(c)}={\Delta }_F^{(b)}$ and ${\lambda }_F^{(c)}={\lambda }_F^{(b)}$, we calculated masses of experimentally missing bottom strange meson states $2S,1P,1D$. We have also analyzed these bottom strange masses by taking $1/m_Q$ corrections which lead modifications of parameter terms as ${\Delta }_F^{(b)}={\Delta }_F^{(c)}+\delta {\Delta }_F$ and ${\lambda }_F^{(b)}={\lambda }_F^{(c)}\delta {\lambda }_F$. Further, we have analyzed their two-body decays, couplings, and branching ratios via the emission of light pseudoscalar mesons. Based on predicted masses and decay widths, we tentatively identified the states $B_{sJ}(6063)$ as $2^3{S}_1$ and $B_{sJ}(6114)$ as $1^3{D}_1$. Our predictions provide crucial information for future experimental studies.