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

Autor:	Richard Furnstahl, Manoj K. Banerjee, Thomas D. Cohen
Rok vydání:	1991
Předmět:	Physics Nuclear and High Energy Physics Particle physics Proton Computer Science::Information Retrieval Nuclear Theory Hadron Context (language use) Nuclear physics Baryon Neutron Mirror nuclei Anomaly (physics) Nuclear Experiment Nucleon
Zdroj:	Physical Review C. 43:357-360
ISSN:	1089-490X 0556-2813
DOI:	10.1103/physrevc.43.357
Popis:	We investigate a recent suggestion that the Nolen-Schiffer anomaly can be resolved if the {ital in}{minus}{ital 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 {ital 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.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::096de509f56276e0a78552aca3134329 https://doi.org/10.1103/physrevc.43.357 Zobrazit plný text záznamu