CP -violating correlations in electron-positron annihilation into. tau. leptons

Journal Article · Mon Dec 25 04:00:00 EST 1989 · Physical Review Letters; (USA)

DOI:https://doi.org/10.1103/PhysRevLett.63.2787· OSTI ID:7165804

Bernreuther, W ^[1]; Nachtmann, O ^[2]

---

1. Theoretical Physics Group, Physics Division, Lawrence Berkeley Laboratory, Berkeley, California 94720 (USA)
2. Universitaet Heidelberg, Federal Republic of Germany Stanford Linear Accelerator Center, Stanford, California 94309 (USA)

An analysis of {ital CP}-violating effects in {ital e}{sup +}{ital e}{sup {minus}}{r arrow}{tau}{sup +}{tau}{sup {minus}} is outlined. Some tensor observables sensitive to {ital CP}-odd couplings arising from possible electric or weak dipole moments {ital d}{sub {tau}},{tilde {ital d}}{sub {tau}} of the {tau} are presented. For the case where both {tau}'s decay via {tau}{r arrow}{pi}{nu}{sub {tau}} we estimate the accuracies with which {tilde {ital d}}{sub {tau}} and {ital d}{sub {tau}} can be measured at the {ital Z} resonance and at a {tau}-charm or {ital B} factory, respectively.

• DOE Contract Number: AC03-76SF00098
• OSTI ID: 7165804
• Journal Information: Physical Review Letters; (USA), Journal Name: Physical Review Letters; (USA) Vol. 63:26; ISSN PRLTA; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

645203* -- High Energy Physics-- Particle Interactions & Properties-Theoretical-- Weak Interactions & Properties
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANNIHILATION
B MESONS
BARYONS
BASIC INTERACTIONS
BOSONS
CP INVARIANCE
DIPOLE MOMENTS
ELECTRIC DIPOLE MOMENTS
ELECTRIC MOMENTS
ELECTROMAGNETIC INTERACTIONS
ELECTRON-POSITRON INTERACTIONS
ELEMENTARY PARTICLES
FERMIONS
FIELD THEORIES
FORM FACTORS
HADRONS
HEAVY LEPTONS
HYPERONS
INTERACTIONS
INTERMEDIATE BOSONS
INTERMEDIATE VECTOR BOSONS
INVARIANCE PRINCIPLES
LAGRANGIAN FIELD THEORY
LAMBDA BARYONS
LAMBDA PARTICLES
LEPTON-LEPTON INTERACTIONS
LEPTONS
MESONS
PAIR PRODUCTION
PARTICLE INTERACTIONS
PARTICLE PROPERTIES
POSTULATED PARTICLES
PSEUDOSCALAR MESONS
QUANTUM FIELD THEORY
STRANGE PARTICLES
SYMMETRY BREAKING
TAU PARTICLES
Z NEUTRAL BOSONS