Radiative corrections to the Higgs boson mass for a hierarchical stop spectrum
Abstract
An effective theory approach is used to compute analytically the radiative corrections to the mass of the light Higgs boson of the Minimal Supersymmetric Standard Model when there is a hierarchy in the masses of the stops ( M _{t∼1}≫M _{t∼2}≫M _{top}, with moderate stop mixing). The calculation includes up to twoloop leading and nexttoleading logarithmic corrections dependent on the QCD and topYukawa couplings, and is further completed by twoloop nonlogarithmic corrections extracted from the effective potential. The results presented disagree already at twoloopleadinglog level with widely used findings of previous literature. Our formulas can be used as the starting point for a full numerical resummation of logarithmic corrections to all loops, which would be mandatory if the hierarchy between the stop masses is large.
 Publication:

Nuclear Physics B
 Pub Date:
 November 2001
 DOI:
 10.1016/S05503213(01)004291
 arXiv:
 arXiv:hepph/0104047
 Bibcode:
 2001NuPhB.615...82E
 Keywords:

 High Energy Physics  Phenomenology
 EPrint:
 42 pages, LaTeX, 13 figures