Radiative Transitions for the Ground and Excited Charmonia States

2025/04/21 by Yadav, Anurag, Puhan, Satyajit, Dahiya, Harleen
#FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph)

paper · doi:10.48550/arxiv.2504.14864

Abstract

In this work, we have investigated the physical properties like decay constants, radiative transitions, decay widths, and branching ratios for the ground and radially excited charmonia states. For the numerical calculations, we have adopted the light-front quark model (LFQM). We have studied χ_c0→ J/ψ+γ and ψ(2S)→χ_c0+γ, h_c(1P)→η_c(1S)+γ, and η_c(2S)→ h_c(1P)+γ transitions in this work. We have also demonstrated the behavior of the transition form factors (TFFs) for the h_c(1P)→η_c(1S)+γ and ψ(2S)→χ_c0+γ decays in this model. Using the TFFs results, we have calculated the decay widths and branching ratios for these transitions. Our numerical results of decay constants, decay widths, and branching ratios are overall in good agreement with available experimental, theoretical and lattice simulation data.

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