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Dresden 2013 – scientific programme

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HK: Fachverband Physik der Hadronen und Kerne

HK 44: Hadronenstruktur und -spektroskopie

HK 44.2: Talk

Tuesday, March 5, 2013, 17:15–17:30, HSZ-403

Phenomenology of the Scalar-Isoscalar Resonances f0(1370), f0(1500) and f0(1710) — •Stanislaus Janowski1, Denis Parganlija2, Francesco Giacosa1, and Dirk H. Rischke1,31Institut für Theoretische Physik, Goethe-Universität Frankfurt, Max-von-Laue-Straße 1, D-60438 Frankfurt — 2Institute for Theoretical Physics, Vienna University of Technology, Wiedner Hauptstr. 8-10, A-1040 Vienna, Austria — 3Frankfurt Institute for Advanced Studies (FIAS), Ruth-Moufang-Straße 1, D-60438 Frankfurt

In the framework of the U(3)R× U(3)L chirally symmetric extended Linear Sigma Model (eLSM) with three flavors we investigate the phenomenology of the three scalar-isoscalar resonances f0(1370), f0(1500), and f0(1710). The degrees of freedom of the eLSM are (pseudo)scalars and axial(vectors) as well as a scalar glueball. In order to understand which of the scalar-isoscalar states is predominantly a nonstrange, nn=(ūu+dd)/√2, and a strange, ss, quark-antiquark state as well as predominantly a scalar glueball state we study their mixing behavior. This is the continuation of the work arXiv:1103.3238 and aims towards a full determination of the structure of the scalar-isoscalar mesons above 1 GeV.
Supported by the Helmholtz Research School for Quark Matter Studies (H-QM) and HGS-HIRe and GSI.

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