Are supersymmetric models with large tan(beta) natural ?

Abstract

We point out that, contrary to general belief, generic supersymmetric models are not technically unnatural in the limit of very large values of the parameter tan(beta) when radiative corrections are properly included. Rather, an upper limit on tan(beta) only arises from the requirement that Yukawa couplings remain perturbative up to some high scale. We quantify the relation between this scale and the maximum value of tan(beta). Whereas tan(beta) is limited to lie below 50-70 in the mSUGRA model, models with a much lower scale of new physics (beyond supersymmetry) may have tan(beta) < 150-200.

Revtex, 12 pages, 2 eps figures

References in corpus (3)

• Higgs-mediated leptonic decays of B_s and B_d mesons as probes of supersymmetry
• Warped Supersymmetric Grand Unification
• Relating bottom quark mass in DR-bar and MS-bar regularization schemes

Cited by in corpus (6)

• Reconciling large CP-violating phases with bounds on the electric dipole moments in the MSSM
• Renormalization Group Invariants in the MSSM and Its Extensions
• Squark and slepton masses as probes of supersymmetric SO(10) unification
• Probing SO(10) symmetry breaking patterns through sfermion mass relations
• Charged Higgs boson contribution to ${\nu }_{\tau }\mathcal{N}\to {\tau }^{-}X$ for very large $\tan \beta$ in the two Higgs doublet model with UHE-neutrinos
• Effects of charged Higgs bosons in the deep inelastic process ν_τ {\cal N} \to τ^- X and the possibility of detecting tau-neutrinos at cosmic neutrino detectors