In-medium proton-neutron mass difference and the systematics of the Nolen-Schiffer anomaly

Thomas D. Cohen, R. J. Furnstahl, and Manoj K. Banerjee
Phys. Rev. C 43, 357 – Published 1 January 1991
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Abstract

We investigate a recent suggestion that the Nolen-Schiffer anomaly can be resolved if the in-medium proton-neutron mass difference is substantially changed from its free space value. In a number of hadronic models, such an effect is a natural consequence of partial chiral restoration in the nuclear medium. This suggestion is meaningful in the context of a local-density approximation, which has strong implications for the systematics of the Nolen-Schiffer anomaly over a range of nuclei. We show that such a mechanism predicts both noticeable shell effects and modest variations in the anomaly as the nuclear size is changed.

  • Received 20 August 1990

DOI:https://doi.org/10.1103/PhysRevC.43.357

©1991 American Physical Society

Authors & Affiliations

Thomas D. Cohen, R. J. Furnstahl, and Manoj K. Banerjee

  • Department of Physics, University of Maryland, College Park, Maryland 20742

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Vol. 43, Iss. 1 — January 1991

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