Affordable Access

Publisher Website

Higgs boson masses in no scale supergravity

  • Kelley, S.
  • Lopez, Jorge L.
  • Nanopoulos, Dimitri V.
  • Pois, H.
  • Yuan, Ka-jia
Publication Date
Jan 01, 1992
DOI: 10.1016/0370-2693(92)91300-X
External links


We explore the Higgs sector of the minimal supersymmetric “no-scale” unified model with the inclusion of radiative corrections which modify the usual tree-level Higgs mass relations. In the process, we rederive the complete allowed parameter space of the model using the one-loop effective potential. Our results can be compared with previous, generic analyses, where restrictive assumptions regarding low-energy supersymmetry breaking and squark mixing terms have been made. We find that in this class of models the lightest Higgs boson is always the lightest CP -even mass eigenstate (h), with m h ⪆M w for a large portion of the allowed parameters space, and m h max ≈ 115 GeV an absolute upper bound. For low values of m 1 2 (e.g., m 1 2 ⪅ 150 GeV ), the heavier Higgses (A, H, H + ) lie mostly in the intermediate mass region ( M w −2 M z ), and become increasingly heavier and degenerated as m 1 2 grows. Depending on the sign of μ, we obtained an upper bound on m 1 2 which leads to absolute upper bounds on all Higgs masses. Finally, we discuss the relevant Higgs decay signatures at LEP and hadron colliders which may reveal their existence.

Report this publication


Seen <100 times