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HK: Fachverband Physik der Hadronen und Kerne
HK 40: Theorie
HK 40.2: Vortrag
Donnerstag, 13. März 2008, 17:00–17:15, 2F
Many-body methods in hadron spectroscopy — •Felipe J. Llanes Estrada1 and Stephen R. Cotanch2 — 1Depto. Fisica Teorica I, Universidad Complutense Madrid, 28040 Madrid Spanien — 2Physics Department, North Carolina State University, 27695 Raleigh, North Carolina, USA
Many-body theory is useful not only in nuclear, but also in hadron spectroscopy. We give a small overview of our work, especially for mesons and meson resonances, in a Coulomb-gauge model approach to QCD. We highlight the use of the BCS, TDA, and RPA approximations, two, three and four-body problems, and how one can employ the Franck-Condon principle to experimentally gain insight into the wavefunction constitution of mesons, with the aim of separating exotica (glueballs, oddballs, hybrid mesons and tetraquarks) from more conventional qqbar mesons. The incorporation of spontaneous chiral symmetry breaking is also highlighted.
References Phys.Lett.B653:216-223,2007, Eur.Phys.J.C51:347-358,2007, Phys.Rev.Lett.96:081601,2006.