Dirac gauginos and kinetic mixing

We present formulae for the calculation of Dirac gaugino masses at leading order in the supersymmetry breaking scale using the methods of analytic continuation in superspace and demonstrate a link with kinetic mixing, even for non-abelian gauginos. We illustrate the result through examples in field...

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Bibliographic Details
Published in:Nuclear physics. B 2010-05, Vol.830 (1), p.315-329
Main Authors: Benakli, K., Goodsell, M.D.
Format: Article
Language:English
Subjects:
High Energy Physics - Phenomenology
High Energy Physics - Theory
Physics
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Summary:We present formulae for the calculation of Dirac gaugino masses at leading order in the supersymmetry breaking scale using the methods of analytic continuation in superspace and demonstrate a link with kinetic mixing, even for non-abelian gauginos. We illustrate the result through examples in field and string theory. We discuss the possibility that the singlet superfield that gives the U ( 1 ) gaugino a Dirac mass may be a modulus, and some consequences of the D-term coupling to the scalar component. We give examples of possible effects in colliders and astroparticle experiments if the modulus scalar constitutes decaying dark matter.
ISSN:0550-3213
1873-1562
DOI:10.1016/j.nuclphysb.2010.01.003