Collinearity angle distribution in e-. mu. events
Journal Article
·
· Phys. Rev., D; (United States)
We present an analytical formula for the collinearity angle distribution of e and ..mu.. in the process e/sup +/e/sup -/ ..-->.. L/sup +/L/sup -/ followed by heavy-lepton decay L ..-->.. ..nu../sub L/ + l + anti ..nu../sub l/, l = e or ..mu... Both V - A and V + A couplings are included, as is a mass for the ..nu../sub L/. At high energies we find that the collinearity angle distribution in costheta becomes a function of the single scaling variable x = ..beta../sup 2/..gamma../sup 2/(1 - costheta)/2, where ..beta.. and ..gamma.. are heavy-lepton boost parameters from the rest frame to the e/sup +/e/sup -/ laboratory frame. This scaling in x may be compared with the scaling in p/sub T//sup 2/ in hadron physics, and it holds independently of the detailed coupling scheme. A violation of this scaling is a signal of the appearance of heavier leptons. (AIP)
- Research Organization:
- Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany
- OSTI ID:
- 7282172
- Journal Information:
- Phys. Rev., D; (United States), Journal Name: Phys. Rev., D; (United States) Vol. 13:9; ISSN PRVDA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
645202* -- High Energy Physics-- Particle Interactions & Properties-Theoretical-- Electromagnetic Interactions & Properties
645203 -- High Energy Physics-- Particle Interactions & Properties-Theoretical-- Weak Interactions & Properties
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANGULAR CORRELATION
CORRELATIONS
DECAY
ELECTRON-POSITRON INTERACTIONS
ELEMENTARY PARTICLES
FERMIONS
HEAVY LEPTONS
INTERACTIONS
INVARIANCE PRINCIPLES
LEPTON-LEPTON INTERACTIONS
LEPTONS
MUONS
PARTICLE INTERACTIONS
PARTICLE KINEMATICS
PARTICLE PRODUCTION
POSTULATED PARTICLES
SCALE INVARIANCE
V-A THEORY
645203 -- High Energy Physics-- Particle Interactions & Properties-Theoretical-- Weak Interactions & Properties
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANGULAR CORRELATION
CORRELATIONS
DECAY
ELECTRON-POSITRON INTERACTIONS
ELEMENTARY PARTICLES
FERMIONS
HEAVY LEPTONS
INTERACTIONS
INVARIANCE PRINCIPLES
LEPTON-LEPTON INTERACTIONS
LEPTONS
MUONS
PARTICLE INTERACTIONS
PARTICLE KINEMATICS
PARTICLE PRODUCTION
POSTULATED PARTICLES
SCALE INVARIANCE
V-A THEORY