Work

Self-consistent relativistic random-phase approximation with vacuum polarization

Year: 2005

Type: article

Abstract: We present a theoretical formulation for the description of nuclear excitations within the framework of a relativistic random-phase approximation whereby the vacuum polarization arising from nucleon-antinucleon fields is duly accounted for. The vacuum contribution to the Lagrangian is explicitly described as extra new terms of interacting mesons by means of the derivative expansion of the effective action. It is shown that the self-consistent calculation yields zero eigenvalue for the spurious isoscalar-dipole state and also conserves the vector-current density.

Source: Physical Review C

DOI: 10.1103/physrevc.72.034301

Authors: A. Haga, H. Toki, S. Tamenaga, Y. Horikawa, H. L. Yadav

Institutions: Nagoya Institute of Technology, The University of Osaka, Juntendo University, University of Rajasthan

Language: English

Topic: Nuclear physics research studies

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

OpenAlex ID: W2050413747

FWCI: 0.568

Cites: 42

Cited by: 5

Related to: 10