No-scale supergravity confronts experiment

Details No-scale supergravity confronts experiment No-scale supergravity confronts experiment

Dec 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991phlb..273..423k&link_type=abstract

Physics Letters B, Volume 273, Issue 4, p. 423-430.

Physics

51

Scientific paper

We present a numerical study of the complete parameter space of the minimal supersymmetric unified model when the seed of supersymmetry breaking is a universal gaugino mass (m1/2), as is the case in typical no-scale supergravity models. After imposing all consistency and experimental constraints on the model, we obtain a rather range of the allowed values of m1/2: 100<~m1/2<~300 (400) GeV for μ>0 (μ<0). This scenario predicts all supersymmetric particle masses to be below 1 TeV, with all the sleptons below 290 GeV. In fact, the choice of just three parameters, namely mt, tan β, and m1/2, completely determines all masses and couplings in the model, and hence makes it a highly predictive and testable scenario.
Present address: Department of Physics and Astronomy, University of Alabama, Box 870324, Tuscaloosa, AL 35487, USA.

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