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Title: A symmetric approach to the massive nonlinear sigma model

In the present study we extend to the massive case the procedure of divergences subtraction, previously introduced for the massless nonlinear sigma model (D = 4). Perturbative expansion in the number of loops is successfully constructed. The resulting theory depends on the Spontaneous Symmetry Breaking parameter v, on the mass m and on the radiative correction parameter Λ. Fermions are not considered in the present work. SU(2) Ⓧ SU(2) is the group used.
Authors:
 [1]
  1. Univ. degli Studi di Milano, Milano (Italy); INFN, Milano (Italy)
Publication Date:
OSTI Identifier:
1076489
Grant/Contract Number:
FG02-05ER41360
Type:
Accepted Manuscript
Journal Name:
Journal of Mathematical Physics
Additional Journal Information:
Journal Volume: 52; Journal Issue: 9; Journal ID: ISSN 0022-2488
Publisher:
American Institute of Physics (AIP)
Research Org:
Massachusetts Institute of Technology, Cambridge, MA (United States); Univ. degli Studi di Milano, Milano (Italy); INFN, Milano (Italy)
Sponsoring Org:
USDOE Office of Science (SC)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS SU2 group; lattice fermion models; chiral symmetries; Gauge field theory; renormalization