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.

References in corpus (16)

• Observation of new resonances decaying to $D\pi$ and $D^{\ast }\pi$ in inclusive $e^{+}{e}^{-}$ collisions near $\sqrt{s}=$10.58 GeV
• Strong decays of heavy-light mesons in a chiral quark model
• $B$ and $B_s$ Meson Spectroscopy
• Excited bottom and bottom-strange mesons in the quark model
• B_{s1}(5830) and B_{s2}^*(5840)
• Excited state mass spectra, Decay properties and Regge trajectories of charm and charm-strange mesons
• Spectroscopy, Decay properties and Regge trajectories of the $B$ and $B_s$ mesons
• Observation of a new excited $D_s^{+}$ meson in $B^0\to D^{-}{D}^{+}{K}^{+}{\pi }^{-}$ decays
• Towards establishing an abundant $B$ and $B_s$ spectrum up to the second orbital excitations
• Near Mass Degeneracy in the Scalar Meson Sector: Implications for $B_{(s)0}^{\ast }$ and $B_{(s)1}^{\prime }$ Mesons
• Analysis of strong decays of charmed mesons $D_2^{\ast }(2460)$, $D_0(2560)$, $D_2(2740)$, $D_1(3000)$, $D_2^{\ast }(3000)$ and their spin partners $D_1^{\ast }(2680)$, $D_3^{\ast }(2760)$ and $D_0^{\ast }(3000)$
• Strong decay of the heavy tensor mesons with QCD sum rules
• $b$-hadron spectroscopy study based on the similarity of double bottom baryon and bottom meson
• Observation of new excited $B_s^0$ states
• Spectroscopic Assignments of the Excited $B$-Mesons
• Study of B, Bs mesons using heavy quark effective theory