Supersymmetric electroweak cosmic strings

Journal Article · Sat Mar 01 04:00:00 EST 1997 · Physical Review, D

DOI:https://doi.org/10.1103/PhysRevD.55.3811· OSTI ID:517025

Edelstein, J D ^[1]; Nunez, C ^[2]

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1. Departament dEstructura i Constituents de la Materia, Facultat de Fisica, Universitat de Barcelona, Diagonal 647, 08028 Barcelona (Spain)
2. Departamento de Fisica, Universidad Nacional de La Plata, C.C. 67, (1900) La Plata (Argentina)

We study the connection between N=2 supersymmetry and a topological bound in a two-Higgs-doublet system with a SU(2){times}U(1){sub Y}{times}U(1){sub Y{sup {prime}}} gauge group. We derive the Bogomol{close_quote}nyi equations from supersymmetry considerations showing that they hold provided certain conditions on the coupling constants, which are a consequence of the huge symmetry of the theory, are satisfied. Their solutions, which can be interpreted as electroweak cosmic strings breaking one-half of the supersymmetries of the theory, are studied. Certain interesting limiting cases of our model which have recently been considered in the literature are finally analyzed. {copyright} {ital 1997} {ital The American Physical Society}

• OSTI ID: 517025
• Journal Information: Physical Review, D, Journal Name: Physical Review, D Journal Issue: 6 Vol. 55; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
COSMOLOGY
COUPLING CONSTANTS
HIGGS BOSONS
STRING MODELS
SU-2 GROUPS
SUPERSYMMETRY
SYMMETRY BREAKING
TOPOLOGY
U-1 GROUPS
gauge field theory
unified field theories