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SUSY with Non-universal Higgs Masses

ORAL

Abstract

In supersymetric models with gravity-mediated SUSY breaking, universality of soft SUSY breaking scalar masses is motivated by the need to suppress unwanted flavor changing or $CP$ violating processes. The motivation, however, does not apply to soft breaking Higgs masses, which may in general have independent masses from matter scalars at the GUT scale. We explore the consequences of both the one-parameter and two-parameter non-universal Higgs mass models (NUHM1 and NUHM2). In both NUHM1 and NUHM2 models, the A-funnel and higgsino dark matter annihilation regions can be realized for any $\tan\beta$ values, unlike the case with the mSUGRA model. We examine the parameter space of NUHM models with respect to $\Omega_{CDM}h^2$, $BF(b\to s\gamma )$ and $(g-2)_\mu$. The most favored regions tend to have a small, positive Higgs mass parameter $\mu$, and a mixed gaugino/higgsino LSP. These regions of parameter space can give rise to observable trilepton rates at the Fermilab Tevatron collider, and robust signal rates at the CERN LHC and a TeV-scale linear $e^+e^-$ collider.

Authors

  • Azar Mustafayev

    Florida State University

  • Howard Baer

    Florida State University

  • Alexander Belyaev

    Michigan State University

  • Stefano Profumo

    Florida State University

  • Xerxes Tata

    University of Hawaii