Production of X_b via radiative transition of Υ(10753)
arxiv(2024)
Abstract
We studied the radiative transitions between the Υ(10753), the
S-D mixed state of the Υ(4S) and Υ_1(3 ^3D_1), 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 B_1^(') mesons as well
as the S-wave B^(*) ones. The consideration of the B_1^(')
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)→γ X_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^-→γ X_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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