The D_s0^*(2317)⁺ decay to D_s⁺π⁰ and D_s^*+γ

2025/12/08 by Su, Pei-Sen, Lyu, Wen-Tao, Liang, Wei-Hong +1
#FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph)

paper · doi:10.48550/arxiv.2512.07421

Abstract

We study the strong decay of D_s0^*(2317)⁺ to D_s⁺ π⁰ considering the coupled channels of D⁰ K⁺, D⁺ K⁰, D_s⁺ η and D_s⁺ π⁰ within a picture for the interaction based on the local hidden gauge approach. We also address the problem of the radiative decay to D_s^*+ γ, using the same information obtained from the molecular picture. We obtain a strong width of the D_s0^*(2317)⁺ of about 71 \rm keV and a radiative decay of 1.3 \rm keV. The anomalous terms for the radiative decay are considered for the first time, but they are found negligible. We make a thorough discussion of this and other results to the light of the recent measurement of Belle for the ratio of these two decay modes, and make a call for the precise measurement of the two decay widths independently to clarify the present situation concerning the nature of of the D_s0^*(2317)⁺ state.

Related

• Observation of the radiative decay D_s (2317)⁺ → D_s^* γ
• Phenomenological description of the D^*_s0(2317)→ D_sπ⁰ decay
• Determining the width of D_s0^*(2317) by using T_cs0^a(2327) in a molecular frame
• Determination of the binding and DK probability of the D^*_s0(2317) from the (D K)^- mass distributions in Λ_b→ Λ_c (D K)^- decays
• The B⁺⁽⁰⁾ → D^0(-) D^*_s0(2317)⁺ decays and the molecular structure of D^*_s0(2317)