MORE ON SOFTLY BROKEN N

Citation
L. Alvarezgaume et M. Marino, MORE ON SOFTLY BROKEN N, International journal of modern physics A, 12(5), 1997, pp. 975-1002
Citations number
47
Categorie Soggetti
Physics, Particles & Fields","Physics, Nuclear
ISSN journal
0217751X
Volume
12
Issue
5
Year of publication
1997
Pages
975 - 1002
Database
ISI
SICI code
0217-751X(1997)12:5<975:MOSBN>2.0.ZU;2-0
Abstract
We extend previous work on the soft breaking of N = 2 supersymmetric Q CD. We present the formalism for the breaking due to a dilaton spurion for a general gauge group and obtain the exact effective potential. W e obtain some general features of the vacuum structure in the pure SU( N) Yang-Mills theory and we also derive a general mass formula for thi s class of theories, in particular we present explicit results for the mass spectrum in the SU(2) case. Finally we analyze the vacuum struct ure of the SU(2) theory with one massless hypermultiplet. This theory presents dyon condensation and a first order phase transition in the s upersymmetry breaking parameter driven by nonmutually local BPS states . This could be a hint of Argyres-Douglas-like phases in nonsupersymme tric gauge theories.