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Gianluca Colò, Univ. of Milano, Italy

INSERT CONSTRAINTS FROM COLLECTIVE EXCITED STATES in the fit of the functional. Concrete proposal : K  , S(ρ=0.1 fm -3 ) , g0’.

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Gianluca Colò, Univ. of Milano, Italy

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  1. INSERT CONSTRAINTS FROM COLLECTIVE EXCITED STATES in the fit of the functional. Concrete proposal : K , S(ρ=0.1 fm-3) , g0’. • Giant Monopole Resonance : EGMR constrains K = 240 ± 20 MeV. (a) Allow in the fit this relatively broad range (one can allow 1.5σ, that is, 210 < K < 270 MeV). (b) A smaller range is possible if we have an a priori choice for the density dependence. This constraints comes from a comparative study of Skyrme, Gogny, RMF. • Giant Dipole Resonance : EIVGDR constraints S0.1 S(=0.1 fm-3).The constraint, coming from a study with Skyrme, is 22.3 < S0.1 < 25.8 MeV. • Giant Quadrupole Resonance : it mainly involves m*. • Low-lying collective states : too much dependent on s.p. spectrum. • Giant Gamow-Teller Resonance : imposing that it exhausts about 60% of the 3(N-Z) sum rule constraints the spin-isospin part of the functional.Here the precise constraint depends on the functional. Gianluca Colò, Univ. of Milano, Italy

  2. Right (left) refers to a softer (stiffer) density dependence: α=1/6 (1/3). GMR: G.C., N. Van Giai, J. Meyer, K. Bennaceur, P. Bonche [PRC 70 (2004)]. IVGDR: L. Trippa, G.C., E. Vigezzi (submitted). GTR: S. Fracasso, G.C. [PRC 76 (2007)].

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