Abstract
If the Higgs boson indeed weighs about 114 to 115 GeV, there must be new physics beyond the Standard Model at some scale ≲ 106 GeV. The most plausible new physics is supersymmetry, which predicts a Higgs boson weighing ≲ 130 GeV. In the CMSSM with R and CP conservation, the existence, production and detection of a 114 or 115 GeV Higgs boson is possible if tan β ≳ 3. However, for the radiatively-corrected Higgs mass to be this large, sparticles should be relatively heavy: m1/2 ≳ 250 GeV, probably not detectable at the Tevatron collider and perhaps not at a low-energy e+e- linear collider. In much of the remaining CMSSM parameter space, neutralino-τ̄ coannihilation is important for calculating the relic neutralino density, and we explore implications for the elastic neutralino-nucleon scattering cross section.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 171-180 |
| Number of pages | 10 |
| Journal | Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics |
| Volume | 502 |
| Issue number | 1-4 |
| DOIs | |
| State | Published - Mar 15 2001 |
Bibliographical note
Funding Information:We would like to thank P. Gambino and especially T. Falk for useful discussions. The work of D.V.N. was partially supported by DOE grant DE-F-G03-95-ER-40917, and that of K.A.O. by DOE grant DE-FG02-94ER-40823.