Supersymmetric Higgs Bosons at the Limit
/ Abstract
W e obtain an im proved upper bound on the lightest neutralCP-even H iggs boson m assfrom a low energy renorm alisation-group analysisoftheH iggssectorofthenext-to-m inim alsupersym m etric standard m odel. W e (cid:12) nd m h < 145 G eV for m t = 90 G eV ,decreasing to m h < 123 G eV for m t = 180 G eV .W ealso discussthelightH iggs spectrum in the region ofparam eterspace close to the upperbound.