Could Large CP Violation Be Detected at Colliders?

Abstract

We argue that CP--violation effects below a few tenths of a percent are probably undetectable at hadron and electron colliders. Thus only operators whose contributions interfere with tree--level Standard Model amplitudes are detectable. We list these operators for Standard Model external particles and some two and three body final state reactions that could show detectable effects. These could test electroweak baryogenesis scenarios.

11pp, LaTeX, UM--TH--92--27(massaged to make TeX output cleaner), no pictures

References in corpus (3)

• Using Back-Scattered Laser Beams to Detect CP Violation in the Neutral Higgs Sector
• Supersymmtric Baryogenesis
• Final-State-Interaction Simulation of T-Violation in the Top-Quark Semileptonic Decay

Cited by in corpus (10)

• CP violation from new quarks in the chiral limit
• A Probe of New Physics in Top Quark Pair Production at $e^{-}{e}^{+}$ Colliders
• CP-violating asymmetries in top-quark production and decay in $e^{+}{e}^{-}$ annihilation within the MSSM
• A T-odd observable sensitive to CP violating phases in squark decay
• Testing $CP$ in the Bjorken process
• CP violating angular asymmetries of b and bbar quarks in e+e- -> t tbar
• CP violation in e+e- -> t tbar: Energy Asymmetries and Optimal Observables of b and bbar Quarks
• Searching for New Physics by means of Relative Phases and Moduli of Decay Amplitudes
• CP-violation in high-energy collisions of polarized protons
• Perspectives for Direct CP Violation Tests in Hyperon Decays