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HK: Fachverband Physik der Hadronen und Kerne

HK 59: Hadronenstruktur und -spektroskopie

HK 59.4: Talk

Friday, March 21, 2014, 15:00–15:15, HZ 1+2

The resonances f0(1370), f0(1500) and f0(1710) in the extended Linera Sigma Model — •Stanislaus Janowski, Francesco Giacosa, and Dirk H. Rischke — Goethe-University, Frankfurt am Main, Germany

In order to study the vacuum properties of the scalar-isoscalar states f0(1370), f0(1500) and f0(1710) we use the extended Linear Sigma Model (eLSM) with globel chiral symmetry and dilatation invariance. Our effective Lagrangian contains (pseudo)scalar and (axial)vector quark-antiquark states and a scalar glueball. We investigate mixing, masses, and decays. We find that a scenario in which f0(1710) is predominantely a scalar glueball is in agreement with the vacuum's phenomenology.