Probing Higgs sector {ital CP} violation with top quarks at a photon linear collider

Journal Article · Sun Oct 01 04:00:00 EDT 1995 · Physical Review, D

DOI:https://doi.org/10.1103/PhysRevD.52.3803· OSTI ID:249518

Anlauf, H ^[1]; Bernreuther, W; Brandenburg, A ^[2]

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1. Institut fuer Kernphysik, TH Darmstadt, D-64289 Darmstadt (Germany)
2. Institut fuer Theoretische Physik, Physikzentrum, Rheinisch-Westfaelische Technische Hochschule Aachen, D-52056 Aachen (Germany)

We investigate for two Higgs-doublet models with intrinsic {ital CP} violation in the scalar potential {ital CP}-nonconserving effects in unpolarized {gamma}{gamma}{r_arrow}{ital t{bar t}} for a range of neutral Higgs boson masses which includes resonant {ital cphi} production and the subsequent decay of {ital cphi}{r_arrow}{ital t{bar t}}. The importance of taking into account, even in the resonant case, the interference with the nonresonant background is shown. Further, we propose and calculate three asymmetries which efficiently trace {ital CP}-violating effects in {gamma}{gamma}{r_arrow}{ital t{bar t}} using semileptonic {ital t{bar t}} decays.

• OSTI ID: 249518
• Journal Information: Physical Review, D, Journal Name: Physical Review, D Journal Issue: 7 Vol. 52; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
ASYMMETRY
CP INVARIANCE
HIGGS BOSONS
HIGGS MODEL
LINEAR COLLIDERS
MASS
PARTICLE PRODUCTION
PHOTON-PHOTON INTERACTIONS
QUARKS
SEMILEPTONIC DECAY
TOP PARTICLES
TOPONIUM
VIOLATIONS