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

Yiqi Geng (Department of Physics and Institute of Theoretical Physics, Nanjing Normal University, Nanjing, Jiangsu 210023, China) ; Mingqi Cao (Department of Physics and Institute of Theoretical Physics, Nanjing Normal University, Nanjing, Jiangsu 210023, China) ; Ruilin Zhu (Department of Physics and Institute of Theoretical Physics, Nanjing Normal University, Nanjing, Jiangsu 210023, China; Peng Huanwu Innovation Research Center, Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing 100190, China; CAS Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing 100190, China)

To distinguish the low-lying vector beauty-charm meson, we systematically study the Bc*Bc+γ, Bc*+ν, 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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      "value": "To distinguish the low-lying vector beauty-charm meson, we systematically study the <math><msubsup><mi>B</mi><mi>c</mi><mo>*</mo></msubsup><mo>\u2192</mo><msub><mi>B</mi><mi>c</mi></msub><mo>+</mo><mi>\u03b3</mi></math>, <math><msubsup><mi>B</mi><mi>c</mi><mo>*</mo></msubsup><mo>\u2192</mo><mo>\u2113</mo><mo>+</mo><msub><mi>\u03bd</mi><mo>\u2113</mo></msub></math>, and <math><msubsup><mi>B</mi><mi>c</mi><mrow><mo>(</mo><mo>*</mo><mo>)</mo></mrow></msubsup><mo>\u2192</mo><mi>J</mi><mo>/</mo><mi>\u03c8</mi><mo>+</mo><mi>n</mi><mi>h</mi></math> processes within effective theory by the helicity decomposition method. The significant difference of polarization asymmetry in <math><msubsup><mi>B</mi><mi>c</mi><mrow><mo>(</mo><mo>*</mo><mo>)</mo></mrow></msubsup><mo>\u2192</mo><mi>J</mi><mo>/</mo><mi>\u03c8</mi><mo>+</mo><mi>n</mi><mi>h</mi></math> 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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Published on:
25 April 2024
Publisher:
APS
Published in:
Physical Review D , Volume 109 (2024)
Issue 7
DOI:
https://doi.org/10.1103/PhysRevD.109.L071301
arXiv:
2310.03425
Copyrights:
Published by the American Physical Society
Licence:
CC-BY-4.0

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