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New models of gauge and gravity mediated supersymmetry breaking

Journal Article · · Physical Review. D, Particles Fields
 [1];  [2]
  1. Enrico Fermi Institute, Univ. of Chicago, IL (United States)
  2. Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)
We show that supersymmetry breaking in a class of theories with SU(N) x SU(N-2) gauge symmetry can be studied in a calculable sigma model. We use the sigma 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.
Research Organization:
Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)
Sponsoring Organization:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
DOE Contract Number:
AC02-07CH11359
OSTI ID:
1155604
Report Number(s):
EFI-96-35; FERMILAB-PUB-96-338-T; arXiv:hep-ph/9609529; oai:inspirehep.net:423978
Journal Information:
Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 9 Vol. 55; ISSN PRVDAQ; ISSN 0556-2821
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English

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