Chirally symmetric phase of supersymmetric gluodynamics

Journal Article · Fri Aug 01 04:00:00 EDT 1997 · Physical Review, D

DOI:https://doi.org/10.1103/PhysRevD.56.2396· OSTI ID:538676

Kovner, A ^[1]; Shifman, M ^[2]

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1. Theoretical Physics, Oxford University, 1 Keble Road, Oxford OX13NP (United Kingdom)
2. Theoretical Physics Institute, University of Minnesota, Minneapolis, Minnesota 55455 (United States)

We argue that supersymmetric gluodynamics (theory of gluons and gluinos) has a condensate-free phase. Unlike the standard phase, the discrete axial symmetry of the Lagrangian is unbroken in this phase, and the gluino condensate does not develop. Extra unconventional vacua are supersymmetric and are characterized by the presence of (bosonic and fermionic) massless bound states. A set of arguments in favor of the conjecture includes (i) an analysis of the effective Lagrangian of the Veneziano-Yankielowicz-type which we amend to properly incorporate all symmetries of the model, (ii) consideration of an unsolved problem with the Witten index, and (iii) interpretation of a mismatch between the strong-coupling and weak-coupling instanton calculations of the gluino condensate detected previously. The impact on Seiberg{close_quote}s results is briefly discussed. {copyright} {ital 1997} {ital The American Physical Society}

• Research Organization: University of Minnesota
• DOE Contract Number: FG02-94ER40823
• OSTI ID: 538676
• Journal Information: Physical Review, D, Journal Name: Physical Review, D Journal Issue: 4 Vol. 56; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
AXIAL SYMMETRY
BOUND STATE
CHIRAL SYMMETRY
DYNAMICS
GLUONS
INSTANTONS
LAGRANGIAN FIELD THEORY
LAGRANGIAN FUNCTION
MASSLESS PARTICLES
SPARTICLES
STRONG-COUPLING MODEL
SUPERSYMMETRY
WEAK-COUPLING MODEL