More on the tensorial central charges in N=1 supersymmetric gauge theories: BPS wall junctions and strings

Journal Article · Sat Apr 15 04:00:00 EDT 2000 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PhysRevD.61.085001· OSTI ID:20216149

Gorsky, A ^[1]; Shifman, M ^[1]

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1. Theoretical Physics Institute, University of Minnesota, Minneapolis, Minnesota 55455 (United States)

We study the central extensions of the N=1 superalgebras relevant to the soliton solutions with the axial geometry--strings, wall junctions, etc. A general expression valid in any four-dimensional gauge theory is obtained. We prove that the only gauge theory admitting BPS strings at weak coupling is supersymmetric electrodynamics with the Fayet-Iliopoulos term. The problem of the ambiguity of the (1/2,1/2) central charge in the generalized Wess-Zumino models and gauge theories with matter is addressed and solved. A possibility of existence of the BPS strings at strong coupling in N=2 theories is discussed. A representation of different strings within the brane picture is presented. (c) 2000 The American Physical Society.

• OSTI ID: 20216149
• Journal Information: Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 8 Vol. 61; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ALGEBRA
ELECTRODYNAMICS
EXTENDED PARTICLE MODEL
GAUGE INVARIANCE
SOLITONS
STRING MODELS
SUPERSYMMETRY
THEORETICAL DATA