New models of gauge and gravity mediated supersymmetry breaking

Poppitz, Erich ; Trivedi, Sandip P. (1997) New models of gauge and gravity mediated supersymmetry breaking Physical Review D - Particles, Fields, Gravitation and Cosmology, 55 (9). pp. 5508-5519. ISSN 1550-7998

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We show that supersymmetry breaking in a class of theories with SU(N) × SU(N-2) gauge symmetry can be studied in a calculable σ model. We use the s model to show that the supersymmetry-breaking vacuum in these theories leaves a large subgroup of flavor symmetries intact, and to calculate the masses of the low-lying states. By embedding the standard model gauge groups in the unbroken flavor symmetry group we construct a class of models in which supersymmetry breaking is communicated by both gravitational and gauge interactions. One distinguishing feature of these models is that the messenger fields, responsible for the gauge-mediated communication of supersymmetry breaking, are an integral part of the supersymmetry-breaking sector. We also show how, by lowering the scale that suppresses the nonrenormalizable operators, a class of purely gauge-mediated models with a combined supersymmetry-breaking-cum-messenger sector can be built. We briefly discuss the phenomenological features of the models we construct.

Item Type:Article
Source:Copyright of this article belongs to The American Physical Society.
ID Code:57602
Deposited On:27 Aug 2011 15:01
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