Superspace evaluation of the two-loop effective potential for the O'Raifeartaigh model

Details Superspace evaluation of the two-loop effective potential for the O'Raifeartaigh model Superspace evaluation of the two-loop effective potential for the O'Raifeartaigh model

2010-08-31

arxiv.org/abs/1008.5295v2

Phys.Rev.D82:125029,2010

Physics

High Energy Physics

High Energy Physics - Theory

24 pages, 2 figures, revtex4, 2 pages added, new appendix added

Scientific paper

10.1103/PhysRevD.82.125029

All-order spurion-corrected superpropagators and superfield Feynman rules are employed to systematically compute a two-loop corrected effective potential for the O'Raifeartaigh model, that realizes spontaneous supersymmetry breaking. Though the shifted superpropagators are rather nontrivial, superspace techniques may be suitably extended and confirm their efficacy in computing radiative corrections even when supersymmetry breakdown occurs.

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