Role of the tensor force in nuclear matter saturation

Autor:	Manoj K. Banerjee, John Tjon
Rok vydání:	1998
Předmět:	Physics Nuclear and High Energy Physics Nuclear Theory Few-body systems Nuclear matter Potential energy Nuclear physics Many-body problem Pion Quantum electrodynamics Nuclear force Nuclear Experiment Ground state Pseudovector
Zdroj:	Physical Review C. 58:2120-2125
ISSN:	1089-490X 0556-2813
DOI:	10.1103/physrevc.58.2120
Popis:	In the fraamework of a relativistic Dirac-Brueckner analysis the pion contribution to the ground state energy of nuclear matter is studied using pseudovector coupling. Evidence is presented that the role of the tensor force in the saturation mechanism is substantially reduced compared to its dominant role in a usual nonrelativistic treatment. The reduction of the pion contribution in nuclear matter is due to many-body effects present in a relativistic treatment. In particular, we show that the damping of the one-pion-exchange potential is actually due to the decrease of M{sup {asterisk}}/M with increasing density. {copyright} {ital 1998} {ital The American Physical Society}
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::b1612ddf4a9b0926a038a5431e87d747 https://doi.org/10.1103/physrevc.58.2120 Zobrazit plný text záznamu