Searching for the CP -odd Higgs boson of the minimal supersymmetric model at hadron supercolliders

Journal Article · Thu Oct 01 04:00:00 EDT 1992 · Physical Review, D (Particles Fields); (United States)

DOI:https://doi.org/10.1103/PhysRevD.46.2907· OSTI ID:7261792

Gunion, J F ^[1]; Haber, H E ^[2]; Kao, C ^[3]

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1. Department of Physics, University of California, Davis, California 95616 (United States)
2. Santa Cruz Institute for Particle Physics, University of California, Santa Cruz, California 95064 (United States)
3. Department of Physics, B-159, Florida State University, Tallahassee, Florida 32306 (United States)

The {ital CP}-odd Higgs boson {ital A}{sup 0} of a nonminimal Higgs model possesses no tree-level couplings to vector-boson pairs. As a result, many of the techniques employed to search for the standard model Higgs boson at the Superconducting Super Collider (SSC) and CERN Large Hadron Collider (LHC) are not likely to be useful in searches for the {ital A}{sup 0}. This paper focuses on the phenomenology of {ital A}{sup 0} production and decay in the minimal supersymmetric model. We evaluate a comprehensive set of branching ratios for {ital A}{sup 0} (which includes all two-body tree-level and one-loop decays into nonsupersymmetric final states), including the effects of leading-log radiative corrections. The one-loop decay {ital A}{sup 0}{r arrow}{ital ZZ} leads to the gold-plated'' signature {ital ZZ}{r arrow}{ital l}{sup +}{ital l{minus}}{ital l+}{ital l{minus}} and provides an observable signature for {ital A}{sup 0} production at the SSC and LHC only over a very narrow region of parameter space. More promising signatures for the {ital A}{sup 0} are also discussed.

• OSTI ID: 7261792
• Journal Information: Physical Review, D (Particles Fields); (United States), Journal Name: Physical Review, D (Particles Fields); (United States) Vol. 46:7; ISSN 0556-2821; ISSN PRVDA
• Country of Publication: United States
• Language: English

Related Subjects

662120 -- General Theory of Particles & Fields-- Symmetry
Conservation Laws
Currents & Their Properties-- (1992-)
662340* -- Hadron Interactions-- (1992-)
662380 -- Decays of Intermediate Bosons-- (1992-)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BOSONS
BRANCHING RATIO
CORRECTIONS
CP INVARIANCE
DECAY
ELEMENTARY PARTICLES
FERMIONS
GLUONS
HADRON-HADRON INTERACTIONS
HIGGS BOSONS
HIGGS MODEL
INTERACTIONS
INTERMEDIATE BOSONS
INTERMEDIATE VECTOR BOSONS
INVARIANCE PRINCIPLES
LEPTONS
MATHEMATICAL MODELS
PARTICLE IDENTIFICATION
PARTICLE INTERACTIONS
PARTICLE MODELS
PARTICLE PRODUCTION
POSTULATED PARTICLES
RADIATIVE CORRECTIONS
STORAGE RINGS
SUPERCONDUCTING SUPER COLLIDER
SUPERSYMMETRY
SYMMETRY
Z NEUTRAL BOSONS