Weak dipole moment of [tau] in [ital e][sup +][ital e][sup [minus]] collisions with longitudinally polarized electrons
Journal Article
·
· Physical Review Letters; (United States)
- Theory Group, Physical Research Laboratory, Navrangpura, Ahmedabad 380009 (India)
It is pointed out that certain [ital CP]-odd momentum correlations in the production and subsequent decay of tau pairs in [ital e][sup +][ital e][sup [minus]] collisions get enhanced when the [ital e][sup [minus]] is longitudinally polarized. Analytic expressions for these correlations are obtained for the single-pion decay mode of [tau] when [tau][sup +][tau][sup [minus]] have a weak'' dipole form factor (WDFF) coupling to [ital Z]. For [ital e][sup +][ital e][sup [minus]] collisions at the [ital Z] peak, a sensitivity of about (1--5)[times]10[sup [minus]17] [ital e] cm for the [tau] WDFF can be reached using a [ital single] [tau][sup +][tau][sup [minus]] decay channel, with 10[sup 6] [ital Z]'s likely to be available at the Stanford Linear Collider with [ital e][sup [minus]] polarization of 62%--75%.
- OSTI ID:
- 7157897
- Journal Information:
- Physical Review Letters; (United States), Journal Name: Physical Review Letters; (United States) Vol. 73:9; ISSN 0031-9007; ISSN PRLTAO
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
662120* -- General Theory of Particles & Fields-- Symmetry
Conservation Laws
Currents & Their Properties-- (1992-)
662310 -- Weak & Electromagnetic Interactions of Leptons-- (1992-)
662430 -- Properties of Leptons-- (1992-)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ACCELERATOR FACILITIES
ACCELERATORS
ANALYTICAL SOLUTION
BEAMS
CORRELATIONS
CP INVARIANCE
DIPOLE MOMENTS
ELECTRON BEAMS
ELECTRON-POSITRON INTERACTIONS
ELEMENTARY PARTICLES
FERMIONS
HEAVY LEPTONS
INTERACTIONS
INVARIANCE PRINCIPLES
LEPTON BEAMS
LEPTON-LEPTON INTERACTIONS
LEPTONS
LINEAR ACCELERATORS
PARTICLE BEAMS
PARTICLE INTERACTIONS
POLARIZED BEAMS
POSTULATED PARTICLES
STANFORD LINEAR COLLIDER
TAU PARTICLES
Conservation Laws
Currents & Their Properties-- (1992-)
662310 -- Weak & Electromagnetic Interactions of Leptons-- (1992-)
662430 -- Properties of Leptons-- (1992-)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ACCELERATOR FACILITIES
ACCELERATORS
ANALYTICAL SOLUTION
BEAMS
CORRELATIONS
CP INVARIANCE
DIPOLE MOMENTS
ELECTRON BEAMS
ELECTRON-POSITRON INTERACTIONS
ELEMENTARY PARTICLES
FERMIONS
HEAVY LEPTONS
INTERACTIONS
INVARIANCE PRINCIPLES
LEPTON BEAMS
LEPTON-LEPTON INTERACTIONS
LEPTONS
LINEAR ACCELERATORS
PARTICLE BEAMS
PARTICLE INTERACTIONS
POLARIZED BEAMS
POSTULATED PARTICLES
STANFORD LINEAR COLLIDER
TAU PARTICLES