Determining tan (beta) at the NLC with SUSY Higgs bosons

摘要

The authors examine the prospects for determining tan (beta) from heavy Higgs scalar production in the minimal supersymmetric standard model at a future e(sup +)e(sup (minus)) collider. Their analysis is independent of assumptions of parameter unification, and they consider general radiative corrections in the Higgs sector. Bounds are presented for (radical)s = 500 GeV and 1 TeV, several Higgs masses, and a variety of integrated luminosities. For all cases considered, it is possible to distinguish low, moderate, and high tan (beta). In addition, the authors find stringent constraints for 3 (approx lt) tan(beta) (approx lt) 10, and, for some scenarios, also interesting bounds on high tan (beta) through tbH(sup (+-)) production. Such measurements may provide strong tests of the Yukawa unifications in grand unified theories and make possible highly precise determinations of soft SUSY breaking mass parameters.