Observables for the analysis of event shapes in e/sup +/e/sup -/ annihilation and other proceses

Journal Article · Mon Dec 04 04:00:00 EST 1978 · Phys. Rev. Lett.; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.41.1581· OSTI ID:6585427

Fox, G C; Wolfram, S

We present a set of rotationally invariant observables which characterizes the ''shapes'' of events, and is calculable in quantum-chromodynamics perturbation theory for final states consisting of quarks and gluons (G). We include the effects of fragmentation to hadrons in comparing the shapes of events from the processes e/sup +/e/sup -/ ..-->.. qq-bar, e/sup +/e/sup -/ ..-->.. qq-barG, and e/sup +/e/sup -/ ..-->.. heavy resonance ..-->.. GGG, and from heavy-quark and lepton production. We indicate how our analysis may be extended to deep-inelastic lepton-hadron interactions and hadron-hadron collisions involving large transverse momenta.

• Research Organization: California Institute of Technology, Pasadena, California 91125
• OSTI ID: 6585427
• Journal Information: Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 41:23; ISSN PRLTA
• Country of Publication: United States
• Language: English

Related Subjects

645400* -- High Energy Physics-- Field Theory
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANNIHILATION
BASIC INTERACTIONS
CROSS SECTIONS
ELECTROMAGNETIC INTERACTIONS
ELECTRON-POSITRON INTERACTIONS
ELEMENTARY PARTICLES
FIELD THEORIES
FRAGMENTATION
GLUON MODEL
HADRONS
INTERACTIONS
JET MODEL
LEPTON-LEPTON INTERACTIONS
LINEAR MOMENTUM
MATHEMATICAL MODELS
PAIR PRODUCTION
PARTICLE INTERACTIONS
PARTICLE MODELS
PERTURBATION THEORY
QUANTUM CHROMODYNAMICS
QUANTUM FIELD THEORY
TRANSVERSE MOMENTUM