Phys. Rev. C 69, 018801 (2004) - Three-body forces and neutron star structure

Three-body forces and neutron star structure

X. R. Zhou, G. F. Burgio, U. Lombardo, H.-J. Schulze, and W. Zuo

Phys. Rev. C 69, 018801 – Published 5 January 2004

Abstract

We calculate the nucleonic equation of state within the Brueckner-Bethe-Goldstone formalism using the Argonne $υ_{18}$ two-body interaction and a three-body interaction. We adopt two different three-body forces: the phenomenological Urbana IX model and a microscopic meson-exchange force including nucleon virtual excitations and nucleon-antinucleon excitations. We compare their respective predictions regarding the structure of neutron stars, in particular the mass-radius relation.

Received 16 July 2003

DOI:https://doi.org/10.1103/PhysRevC.69.018801

©2004 American Physical Society

Authors & Affiliations

X. R. Zhou^1,2, G. F. Burgio³, U. Lombardo², H.-J. Schulze³, and W. Zuo⁴

¹Department of Physics, Tsinghua University, 100084 Beijing, China
²INFN-LNS, Via Santa Sofia 44, I-95123 Catania, Italy
³INFN Sezione di Catania, Via Santa Sofia 64, I-95123 Catania, Italy
⁴Institute of Modern Physics, 730000 Lanzhou, China

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Issue

Vol. 69, Iss. 1 — January 2004

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