Cosmic Strings in Supergravity

Details Cosmic Strings in Supergravity Cosmic Strings in Supergravity

1997-06-09

arxiv.org/abs/hep-ph/9706302v1

Phys.Rev. D56 (1997) 2378-2383

Physics

High Energy Physics

High Energy Physics - Phenomenology

13 pages, revtex, no figures; submitted to Phys. Rev. D

Scientific paper

10.1103/PhysRevD.56.2378

It is pointed out that various types of cosmic string solutions that exist in nonsupersymmetric and globally supersymmetric theories, such as D-type gauge strings, F-type global and gauge strings, and superconducting Witten strings, also exist in supergravity models. When the D term and superpotential satisfy some simple conditions allowing the determination of a set of vacuum states with nontrivial topology, the existence of a string embedded within a supersymmetric vacuum with vanishing cosmological constant can be inferred. Supergravity also admits other string solutions, some of which have no counterparts in globally supersymmetric theories.

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