The analysis of the excited bottom and bottom strange states $B_{1}(5721)$, $B_{2}^{*}(5747)$, $B_{s1}(5830)$, $B_{s2}^{*}(5840)$, $B_{J}(5840)$ and $B_{J}(5970)$ in B meson family

TL;DR

This paper analyzes the excited bottom and bottom strange mesons using the $^{3}P_{0}$ decay model to confirm their quantum state assignments and identify new states, providing theoretical support for experimental observations.

Contribution

It offers a detailed theoretical analysis of bottom meson states, confirming some assignments and proposing new identifications for recently observed states based on decay patterns.

Findings

$B_{1}(5721)$ and $B_{2}^{*}(5747)$ are $1P_{1}'$ and $1^{3}P_{2}$ states

$B_{s1}(5830)$ and $B_{s2}^{*}(5840)$ are strange partners of the above states

$B_{J}(5840)$ and $B_{J}(5970)$ are tentatively identified as $2^{3}S_{1}$ and $1^{3}D_{3}$ states

Abstract

In order to make a further confirmation about the assignments of the excited bottom and bottom strange mesons $B_{1}(5721)$, $B_{2}^{*}(5747)$, $B_{s1}(5830)$, $B_{s2}^{*}(5840)$ and meanwhile identify the possible assignments of $B_{J}(5840)$, $B_{J}(5970)$, we study the strong decays of these states with the $^{3}P_{0}$ decay model. Our analysis support $B_{1}(5721)$ and $B_{2}^{*}(5747)$ to be the $1P_{1}'$ and $1^{3}P_{2}$ assignments and the $B_{s1}(5830)$, $B_{s2}^{*}(5840)$ to be the strange partner of $B_{1}(5721)$ and $B_{2}^{*}(5747)$. Besides, we tentatively identify the recently observed $B_{J}(5840)$, $B_{J}(5970)$ as the $2^{3}S_{1}$ and $1^{3}D_{3}$ states, respectively. It is noticed that this conclusion needs further confirmation by measuring the decay channel to $B\pi$ of $B_{J}(5840)$ and $B_{J}(5970)$ in experiments.