Excited bottom and bottom-strange mesons in the quark model

Abstract

In order to understand the possible $q\bar{q}$ quark-model assignments of the $B_J(5840)$ and $B_J(5960)$ recently reported by the LHCb Collaboration, we evaluate mass spectra, strong decays, and radiative decays of bottom and bottom-strange mesons in a nonrelativistic quark model. Comparing these predictions with the relevant experimental results, we suggest that the $B_J(5840)$ and $B_J(5960)$ can be identified as the $B(2^1{S}_0)$ and $B(1^3{D}_3)$, respectively, and the $B(5970)$ reported by the CDF Collaboration can be interpreted as the $B(2^3{S}_1)$ or $B(1^3{D}_3)$. Further precise measurements of the width, spin and decay modes of the $B(5970)$ are needed to distinguish these two assignments. These predictions of bottom and bottom-strange mesons can provide useful information to further experimental investigations.

12 pages, 3 figures, version accepted by Phys. Rev. D

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• Threshold effects in P-wave bottom-strange mesons
• Spectroscopy, Decay properties and Regge trajectories of the $B$ and $B_s$ mesons
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• The $\varphi (2170)$ production in the process $\gamma p\to \eta \varphi p$
• Spectroscopic Assignments of the Excited $B$-Mesons
• Study of B, Bs mesons using heavy quark effective theory
• Mass Spectra of One or Two Heavy Quark Mesons and Diquarks within a Nonrelativistic Potential Model
• QCD string in excited heavy-light mesons and heavy-quark hybrids
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