Open AccessBREAKING OF SUPERSYMMETRY AND WITTEN INDEX IN TWO-DIMENSIONAL SUPERSYMMETRIC MODELS
Author(s) -
Yu Yang-Zheng,
Chen Xiong-Xiong
Publication year - 1993
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.42.214
Subject(s) - supersymmetry , physics , supersymmetry breaking , particle physics , class (philosophy) , theoretical physics , computer science , artificial intelligence
We construct a wider class of O(N) supersymmetric (SUSY) models with so-perpotential W = (l/n)gφn in two-dimensions. The witten index △ of the models is evaluated in detail. It is shown that SUSY breaking does not occur when n is even, and can occur when n is odd. By using large-N expansion, a mechanism for spontaneous SUSY breaking is investigated. Finally, we present the particle spectra.