Neutron-proton mass difference in nuclear matter

Abstract

Isospin-breaking effects in nuclear matter are studied in the framework of a medium-modified Skyrme model. The proposed effective Lagrangian incorporates both the medium influence of the surrounding nuclear environment on the single nucleon properties and an explicit isospin-breaking effect in the mesonic sector. The approach predicts that the neutron-proton mass difference decreases in isospin-symmetric nuclear matter but by a very small amount only.

8 pages, 4 figures, revised version

References in corpus (1)

• Electromagnetic form factors of bound nucleons revisited

Cited by in corpus (3)

• On Th229 and time-dependent fundamental constants
• Neutron-proton mass difference in finite nuclei and the Nolen-Schiffer anomaly
• Neutron-proton mass difference in isospin asymmetric nuclear matter