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Nucleon-nucleon effective potential in dense matter including rho-meson exchange

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Nucleon-nucleon effective potential in dense matter including rho-meson exchange

dc.contributor.author	Mornas, L.
dc.contributor.author	Gallego, E.
dc.contributor.author	Pérez Cañellas, Armando
dc.date.accessioned	2014-02-17T13:18:01Z
dc.date.available	2014-02-17T13:18:01Z
dc.date.issued	2002
dc.identifier.uri	http://dx.doi.org/10.1016/S0375-9474(01)01282-9
dc.identifier.uri	http://hdl.handle.net/10550/32985
dc.description.abstract	We obtain the RPA summed one-meson exchange potential between nucleons in symmetric nuclear matter at zero temperature, from a model which includes rho, sigma, omega and pi mesons. The behavior of rho mesons inside the medium is first discussed using different schemes to extract a finite contribution from the vacuum polarization. These schemes give qualitatively different results for the in-medium rho mass. The results are discussed in connection with the nourenormalizability of the model. We next study the modified potential as density increases. In the intermediate-distance range, it is qualitatively modified by matter and vacuum effects. In the long-distance range (r > 2 fm), one observes the presence of oscillations, which are not present in free space. Features on this distance range arc insensitive to the renormalization scheme.
dc.relation.ispartof	Nuclear Physics A, 2002, vol. 699, num. 3-4, p. 579-623
dc.rights.uri	info:eu-repo/semantics/openAccess
dc.source	Mornas, L. Gallego, E. Pérez Cañellas, Armando 2002 Nucleon-nucleon effective potential in dense matter including rho-meson exchange Nuclear Physics A 699 3-4 579 623
dc.subject	Física
dc.title	Nucleon-nucleon effective potential in dense matter including rho-meson exchange
dc.type	info:eu-repo/semantics/article
dc.date.updated	2014-02-17T13:18:01Z
dc.identifier.doi	http://dx.doi.org/10.1016/S0375-9474(01)01282-9
dc.identifier.idgrec	093316