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HK: Fachverband Physik der Hadronen und Kerne

HK 47: Hadronenstruktur und -spektroskopie

HK 47.7: Vortrag

Donnerstag, 20. März 2014, 18:30–18:45, HZ 1+2

Phenomenology of a pseudoscalar glueball and charmed mesons in the extended linear sigma model — •Walaa I. Eshraim, Francesco Giacosa, and Dirk Rischke — J. W. Goethe University, Frankfurt am Main, Germany

In the framework of the so-called extended linear sigma model (eLSM), we include a pseudoscalar glueball with a mass of 2.6 GeV (as predicted by Lattice QCD simulations) and we compute the two- and three-body decays into scalar and pseudoscalar mesons. This study is relevant for the future PANDA experiment at the FAIR facility. As a second step, we extend the eLSM by including the charm quark according to the global U(4)_r × U(4)_l chiral symmetry. We compute the masses, weak decay constants and strong decay widths of open and hidden charmed mesons. The results are in good agreement with the experimental data.