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Setting Limits on Supersymmetry Using Simplified Models
Published on: November 15, 2013
Effective nucleon masses in symmetric and asymmetric nuclear matter
E N E van Dalen1, C Fuchs, Amand Faessler
1Institut für Theoretische Physik, Universität Tübingen, Auf der Morgenstelle 14, D-72076 Tübingen, Germany.
Abstract:
The momentum and isospin dependence of the in-medium nucleon mass are studied. Two definitions of the effective mass, i.e., the Dirac mass m*D and the nonrelativistic mass m*NR which parametrizes the energy spectrum, are compared. Both masses are determined from relativistic Dirac-Brueckner-Hartree-Fock calculations. The nonrelativistic mass shows a distinct peak around the Fermi momentum. The proton-neutron mass splitting in isospin asymmetric matter is m*D,n
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