Stringy cosmic strings in matter coupled N=2, d=4 supergravity

Details Stringy cosmic strings in matter coupled N=2, d=4 supergravity Stringy cosmic strings in matter coupled N=2, d=4 supergravity

2007-11-06

arxiv.org/abs/0711.0857v2

JHEP 0805:033,2008

Physics

High Energy Physics

High Energy Physics - Theory

36 pages, added references, corrected typos, modificated Appendix C

Scientific paper

10.1088/1126-6708/2008/05/033

We extend the system of ungauged N=2, d=4 supergravity coupled to vector multiplets and hypermultiplets with 2-form potentials. The maximal number of 2-form potentials that one may introduce is equal to the number of isometries of either the special Kaehler or quaternionic Kaehler sigma model. We show that the local supersymmetry algebra can be realized on the 2-form potentials. These 2-forms couple electrically to strings which we refer to as stringy cosmic strings. The 1/2 BPS bosonic world-sheet actions for these strings are constructed and we discuss the properties of the 1/2 BPS stringy cosmic string solutions.

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