Particle-width effect on [ital CP]-violating asymmetries

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

DOI:https://doi.org/10.1103/PhysRevD.47.R1741· OSTI ID:7017352

Liu, J ^[1]

---

1. Department of Physics, University of Pennsylvania, Philadelphia, Pennsylvania 19104 (United States)

[ital CP]-violating asymmetries calculated from the Breit-Wigner approximation for unstable particle propagators violate [ital CPT] invariance. A formalism satisfying [ital CPT] invariance and unitarity is presented. Applications are given to [ital t] decays. For the decay [ital t][r arrow][ital b][nu][sub [tau]][bar [tau]] in a class of [ital CP]-violating Higgs models the [ital CP]-violating asymmetry turns out to be 10[sup [minus]4] times smaller than the previously reported results.

• DOE Contract Number: AC02-76ER03071
• OSTI ID: 7017352
• Journal Information: Physical Review, D (Particles Fields); (United States), Vol. 47:5; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
QUANTUM FIELD THEORY
CPT THEOREM
TOP PARTICLES
HADRONIC PARTICLE DECAY
CP INVARIANCE
HIGGS MODEL
MASS
PROPAGATOR
RENORMALIZATION
SELF-ENERGY
DECAY
ELEMENTARY PARTICLES
ENERGY
FIELD THEORIES
INVARIANCE PRINCIPLES
MATHEMATICAL MODELS
PARTICLE DECAY
PARTICLE MODELS
POSTULATED PARTICLES
662120* - General Theory of Particles & Fields- Symmetry
Conservation Laws
Currents & Their Properties- (1992-)