$D_s$ decays into $φ$ and $f_0(980)$ mesons

Details $D_s$ decays into $φ$ and $f_0(980)$ mesons $D_s$ decays into $φ$ and $f_0(980)$ mesons

2003-04-21

arxiv.org/abs/hep-ph/0304193v1

Phys.Rev.D68:036001,2003

Physics

High Energy Physics

High Energy Physics - Phenomenology

14 pages, RevTeX4 including 5 figures in ps files

Scientific paper

10.1103/PhysRevD.68.036001

We consider the nonleptonic and semileptonic decays of $D_s$-mesons into $\phi$ and $f_0(980)$ mesons. QCD sum rules are used to calculate the form factors associated with these decays, and the correspondig decay rates. On the basis of data on $D_s^+\to\pi^+\pi^+\pi^-$, which goes dominantly via the transition $D_s^+\to \pi^+f_0(980)$, we conclude that there is space for a sizeable light quark component on $f_0(980)$.

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