München 2006 – wissenschaftliches Programm

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HK: Physik der Hadronen und Kerne

HK 5: Theorie

HK 5.7: Gruppenbericht

Montag, 20. März 2006, 15:30–16:00, B

Relativistic nuclear energy density functional constrained by low-energy QCD — •Paolo Finelli¹, Norbert Kaiser², Dario Vretenar³, and Wolfram Weise² — ¹Physics Department, University of Bologna and INFN — ²Physics Department, Technical University of Muenchen — ³Physics Department, University of Zagreb

A relativistic nuclear energy density functional is developed, guided by two important features that establish connections with chiral dynamics and the symmetry breaking pattern of low-energy QCD: a) strong scalar and vector fields related to in-medium changes of QCD vacuum condensates; b) the long- and intermediate-range interactions generated by one-and two-pion exchange, derived from in-medium chiral perturbation theory, with explicit inclusion of Δ(1232) excitations. Applications are presented for ground-state properties and collective excitations, in particular Gamow-Teller and IAS resonances.

Work supported in part by BMBF, GSI, MURST and INFN.