[ital CP] violation in the bosonic sector of the SM with two Higgs doublets

Journal Article · Wed Dec 01 00:00:00 EST 1993 · Physical Review, D (Particles Fields); (United States)

DOI:https://doi.org/10.1103/PhysRevD.48.5280· OSTI ID:5585996

Cvetic, G ^[1]

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1. Institut fuer Physik, Universitaet Dortmund, 44221 Dortmund (Germany)

We investigate [ital CP]-violation effects in the bosonic sector of the standard model (SM) with two Higgs doublets. First we calculate the mass eigenstates of the physical neutral Higgs bosons for the small but nonzero [ital CP]-violation parameter [xi][sub *], and then a forward-backward'' asymmetry [ital scrA][sub FB] for the decay [ital H][r arrow][ital W][sup +][ital W[minus]][ital Z] that would be a signal of [ital CP] violation. Although the effects are in general small ([ital scrA][sub FB]=[Gamma][sub FB]/[Gamma][similar to]10[sup [minus]3]), [ital scrA][sub FB] turns out to be a rather clean signal of [ital CP] violation, since neither the [ital CP]-conserving final state interactions nor the direct production background events contribute to [Gamma][sub FB]. The CKM-type [ital CP]-violation effects that could in principle also contribute to [ital scrA][sub FB] are negligible. The nonzero [ital scrA][sub FB], or related quantities, could possibly be detected at some later stage at the CERN LHC or SSC.

• OSTI ID: 5585996
• Journal Information: Physical Review, D (Particles Fields); (United States), Vol. 48:11; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
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INTERMEDIATE VECTOR BOSONS
CP INVARIANCE
STANDARD MODEL
HIGGS BOSONS
ASYMMETRY
EIGENSTATES
FINAL-STATE INTERACTIONS
MASS
PARTICLE DECAY
VIOLATIONS
BOSONS
DECAY
ELEMENTARY PARTICLES
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INTERMEDIATE BOSONS
INVARIANCE PRINCIPLES
MATHEMATICAL MODELS
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POSTULATED PARTICLES
UNIFIED GAUGE MODELS
662120* - General Theory of Particles & Fields- Symmetry
Conservation Laws
Currents & Their Properties- (1992-)
662210 - Specific Theories & Interaction Models
Particle Systematics- Unified Theories & Models- (1992-)
662440 - Properties of Other Particles Including Hypothetical Particles- (1992-)