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  • Letter
  • Open Access

Distinguishing the low-lying vector beauty-charm meson via polarization analysis

Yiqi Geng1, Mingqi Cao1, and Ruilin Zhu1,2,3,*

  • 1Department of Physics and Institute of Theoretical Physics, Nanjing Normal University, Nanjing, Jiangsu 210023, China
  • 2CAS Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing 100190, China
  • 3Peng Huanwu Innovation Research Center, Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing 100190, China

  • *Corresponding author: rlzhu@njnu.edu.cn
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Phys. Rev. D 109, L071301 – Published 25 April, 2024

DOI: https://doi.org/10.1103/PhysRevD.109.L071301

Abstract

To distinguish the low-lying vector beauty-charm meson, we systematically study the Bc*→Bc+γ, Bc*→ℓ+νℓ, and Bc(*)→J/ψ+nh processes within effective theory by the helicity decomposition method. The significant difference of polarization asymmetry in Bc(*)→J/ψ+nh indicates a general law in vector-to-vector and pseudoscalar-to-vector transition processes, which can be tested in current and future LHC experiments. In the end, we discuss the experiment search and discovery potential for the low-lying vector beauty-charm meson.

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Phys. Rev. D 109, L071301– Published 25 April, 2024
  • Received 5 October 2023
  • Accepted 1 April 2024
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