Nielsen-Olesen strings in Supersymmetric models

Details Nielsen-Olesen strings in Supersymmetric models Nielsen-Olesen strings in Supersymmetric models

2002-11-25

arxiv.org/abs/hep-th/0211240v2

JHEP 0301 (2003) 052

Physics

High Energy Physics

High Energy Physics - Theory

7 pages, 2 figues, uses revtex4; minor typos corrected; references added

Scientific paper

10.1088/1126-6708/2003/01/052

We investigate the behaviour of a model with two oppositely charged scalar fields. In the Bogomol'nyi limit this may be seen as the scalar sector of N=1 supersymmetric QED, and it has been shown that cosmic strings form. We examine numerically the model out of the Bogomol'nyi limit, and show that this remains the case. We then add supersymmetry-breaking mass terms to the supersymmetric model, and show that strings still survive. Finally we consider the extension to N=2 supersymmetry with supersymmetry-breaking mass terms, and show that this leads to the formation of stable cosmic strings, unlike in the unbroken case.

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