D_s decays into ϕ and f₀(980) mesons

2003/04/21 by Ignacio Bediaga, Marina Nielsen · 1 citation
Physics and Astronomy · #hep-ph #nucl-th

paper · pdf · doi:10.1103/physrevd.68.036001

published as Phys.Rev.D68:036001,2003 · 14 pages, RevTeX4 including 5 figures in ps files

arxiv created 2003/04/21 · arxiv updated 2009/11/30

Abstract

We consider the nonleptonic and semileptonic decays of D_s-mesons into ϕ and f₀(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⁺→π⁺π⁺π^-, which goes dominantly via the transition D_s⁺→ π⁺f₀(980), we conclude that there is space for a sizeable light quark component on f₀(980).

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