Pei-Sen Su, Wen-Tao Lyu, Wei-Hong Liang, Eulogio Oset
Abstract We study the strong decay of $$D_{s0}^*(2317)^+$$ D s 0 ∗ ( 2317 ) + to $$D_s^+ \pi ^0$$ D s + π 0 considering the coupled channels of $$D^0 K^+, D^+ K^0, D_s^+ \eta $$ D 0 K + , D + K 0 , D s + η and $$D_s^+ \pi ^0$$ D s + π 0 within a picture for the interaction based on the local hidden gauge approach. We also address the problem of the radiative decay to $$D_s^{*+} \gamma $$ D s ∗ + γ , using the same information obtained from the molecular picture. We obtain a strong width of the $$D_{s0}^*(2317)^+$$ D s 0 ∗ ( 2317 ) + of about $$77 \,\mathrm keV$$ 77 k e V from coupled channels interaction and a radiative decay of about $$1.7 \,\mathrm keV$$ 1.7 k e V . We also show that the extra consideration of $$\pi ^0-\eta $$ π 0 - η mixing can double the strong decay width to values around $$140 \,\mathrm keV$$ 140 k e V . The anomalous terms for the radiativ