Chiral cosmic strings in supergravity

Details Chiral cosmic strings in supergravity Chiral cosmic strings in supergravity

2004-11-19

arxiv.org/abs/hep-ph/0411260v2

JHEP0412:043,2004

Physics

High Energy Physics

High Energy Physics - Phenomenology

14 pages, no figures

Scientific paper

10.1088/1126-6708/2004/12/043

We consider F and D-term cosmic strings formed in supersymmetric theories. Supersymmetry is broken inside the string core, but restored outside. In global SUSY, this implies the existence of goldstino zero modes, and the string potentially carries fermionic currents. We show that these zero modes do not survive the coupling to gravity, due to the super Higgs mechanism. Therefore the superconductivity and chirality properties are different in global and local supersymmetry. For example, a string formed at the end of D-term inflation is chiral in supergravity but non-chiral in global SUSY.

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