Text this: $$D_s \rightarrow f_0(980)$$ D s → f 0 ( 980 ) form factors and the $$D_s^+ \rightarrow (f_0(980) \rightarrow )\left[ \pi \pi \right] _{S}^{\textrm{I} = 0} e^+ \nu _e$$ D s + → ( f 0 ( 980 ) → ) π π S I = 0 e + ν e decay from light-cone sum rules