Production of X_b via radiative transition of Υ(10753)

2024/03/04 by Shi-Dong Liu, Hao-Dong Cai, Liu, Shi-Dong +11
Physics and Astronomy · #Cosmology and Gravitation Theories #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions

paper · pdf · doi:10.48550/arxiv.2403.01676

openalex publication_date 2024/03/04 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We studied the radiative transitions between the Υ(10753), the S-D mixed state of the Υ(4S) and Υ₁(3 ³D₁), and the X_b, 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)→γX_b 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 X_b in the e⁺e^-→γX_b with X_b→ππχ_b1 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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