Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1995-01-26
Phys.Rev.C52:1368-1379,1995
Physics
High Energy Physics
High Energy Physics - Phenomenology
24 pages, RevTex, 5 figures, uuencoded compressed postscript
Scientific paper
10.1103/PhysRevC.52.1368
A relativistic hadronic model for nuclear matter and finite nuclei, which incorporates nonlinear chiral symmetry and broken scale invariance, is presented and applied at the one-baryon-loop level to finite nuclei. The model contains an effective light scalar field that is responsible for the mid-range nucleon--nucleon attraction and which has anomalous scaling behavior. One-loop vacuum contributions in this background scalar field at finite density are constrained by low-energy theorems that reflect the broken scale invariance of quantum chromodynamics. A mean-field energy functional for nuclear matter and nuclei is derived that contains small powers of the fields and their derivatives, and the validity of this truncation is discussed. Good fits to the bulk properties of finite nuclei and single-particle spectra are obtained.
Furnstahl R. J.
Serot Brian D.
Tang Hua-Bin
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