e/sup +/-e/sup -/ hadronic multiplicity distributions

Conference · Wed Jan 01 04:00:00 EST 1986

OSTI ID:5412378

Carruthers, P; Shih, C C

The 29 GeV multiplicity data have been analyzed for e/sup +/ -e/sup -/ ..-->.. hadrons using the partially coherent laser distribution (PCLD). The latter interpolates between the negative binomial and Poisson distributions as the ratio S/N of coherent/incoherent multiplcity varies from zero to infinity. The negative binomial gives an excellent fit for rather large values of the cell parameter k. Equally good fits (for full and partial rapidity range, and for the forward/backward 2 jet correlation) are obtained for the mostly coherent (almost Poissonian) PCLD with small values of k (equal to the number of jets). The reasons for the existence of this tradeoff are explained in detail. The existence of the resulting ambiguity is traced to the insensitivity of the probability distribution to phase information in the hadronic density matrix. The study of higher order correlations (intensity interferometry) among like sign-particles is recommended to resolve this question.

• Research Organization: Los Alamos National Lab., NM (USA). Theoretical Div.; Tennessee Univ., Knoxville (USA). Dept. of Physics and Astronomy
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 5412378
• Report Number(s): LA-UR-86-2705; CONF-8606203-4; ON: DE86015335
• Country of Publication: United States
• Language: English

Related Subjects

645201* -- High Energy Physics-- Particle Interactions & Properties-Theoretical-- General & Scattering Theory
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
COHERENT PRODUCTION
ELECTRON-POSITRON INTERACTIONS
ELEMENTARY PARTICLES
HADRONS
INTERACTIONS
JETS
LEPTON-LEPTON INTERACTIONS
MULTIPLE PRODUCTION
MULTIPLICITY
PARTICLE INTERACTIONS
PARTICLE PRODUCTION