What if the Higgs boson weighs 115 GeV?

What if the Higgs Boson Weighs 115 GeV ?

John Ellis, Gerardo Ganis, D.V. Nanopoulos and Keith A. Olive TH Division, CERN, Geneva, Switzerland Max-Planck-Institut für Physik, Munich, Germany; present address: INFN, Università di Roma II ‘Tor Vergata’, Rome, Italy Department of Physics, Texas A & M University, College Station, TX 77843, USA; Astroparticle Physics Group, Houston Advanced Research Center (HARC), Mitchell Campus, Woodlands...

What Will We Learn If a Higgs Boson Is Found ?

We examine what can be deduced from the discovery of a Higgs boson, focusing on a possible discovery at LEP. The analysis begins with the most general situation where no further constraints can be deduced, and then specializes to include various assumptions. Assuming naturalness, the relatively large mass suggests that one or more of larger tanβ, large phase, or extra singlets is present. We di...

Supersymmetric exotic decays of the 125 GeV Higgs boson.

We reveal a set of novel decay topologies for the 125 GeV Higgs boson in supersymmetry which are initiated by its decay into a pair of neutralinos, and discuss their collider search strategies. This category of exotic Higgs decays is characterized by the collider signature: visible objects+E_{T}, with E_{T} dominantly arising from escaping dark matter particles. Their benchmark arises naturally...

Implications of a possible 115 GeV supersymmetric Higgs boson on detection and cosmological abundance of relic neutralinos

We show that a supersymmetric neutral Higgs boson with a mass of about 115 GeV and with the other prerequisites required by the LEP Higgs events would be compatible with the detection of relic neutralinos in current set–ups for WIMP direct search. Thus this putative Higgs would fit remarkably well in an interpretation in terms of relic neutralinos of the annual–modulation effect recently measur...

WHAT IF THE TOP QUARK HAS MASS M > 19 GeV