Radiative Higgs decay to ψ(4230)
Abstract
We calculate the decay rate for the radiative Higgs decay H → ψ(4230) + γ within and beyond the SM. The vector state ψ(4230) is a candidate exotic tetraquark state and has the quantum numbers IG(JPC)=0-(1−−), having a mass mψ(4230)=4221.7 ± 2.5 MeV and a decay width Γψ(4230)=51 ± 7 MeV. We propose a practical parametrization of the so-called {\it direct amplitude}, using the leptonic coupling of the ψ(4230) to estimate the short-distance overlap relevant to the Higgs decay amplitude. We find cal BSM( H → ψ(4230) γ)=4.88+4.71−4.52× 10−7, where the uncertainties are dominated by the experimental uncertainty in the leptonic decay width of the ψ(4230). The branching ratio increases to about 10−6 for $y_c=-3 $, where yc is the Higgs-Yukawa coupling of the charm quark.
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BibTeX
@misc{ali2026radiative,
title = {{Radiative Higgs decay to $ψ\left(4230\right)$}},
author = {Ahmed Ali and Muhammad Jamil Aslam},
howpublished = {arXiv},
year = {2026},
month = oct,
doi = {10.48550/arxiv.2610.34117},
eprint = {2610.34117},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2610.34117},
note = {CC BY 4.0},
}
RIS
TY - UNPB
TI - Radiative Higgs decay to ψ(4230)
AU - Ahmed Ali
AU - Muhammad Jamil Aslam
PY - 2026
DA - 2026/10/25
PB - arXiv
DO - 10.48550/arxiv.2610.34117
UR - https://arxiv.org/abs/2610.34117
AB - We calculate the decay rate for the radiative Higgs decay H → ψ(4230) + γ within and beyond the SM. The vector state ψ(4230) is a candidate exotic tetraquark state and has the quantum numbers I^G(J^PC)=0^-(1^−−), having a mass m_ψ(4230)=4221.7 ± 2.5 MeV and a decay width Γ_ψ(4230)=51 ± 7 MeV. We propose a practical parametrization of the so-called {\it direct amplitude}, using the leptonic coupling of the ψ(4230) to estimate the short-distance overlap relevant to the Higgs decay amplitude. We find cal B_SM( H → ψ(4230) γ)=4.88^+4.71_−4.52× 10^−7, where the uncertainties are dominated by the experimental uncertainty in the leptonic decay width of the ψ(4230). The branching ratio increases to about 10^−6 for $y_c=-3 $, where y_c is the Higgs-Yukawa coupling of the charm quark.
ER -