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

Journal Article · Sun Feb 01 04:00:00 EST 1987 · Mod. Phys. Lett. A; (United States)

DOI:https://doi.org/10.1142/S0217732387000136· OSTI ID:6021642

Carruthers, P; Shih, C C

The authors have analyzed the 29 GeV multiplicity data 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 multiplicity varies from zero to infinity. The negative binomial gives an excellent fit for rather large values of the cell parameter kappa. 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 kappa (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. They recommend the study of higher order correlations (intensity interferometry) among like-sign particles to resolve this question.

• Research Organization: Theoretical Div., Los Alamos National Lab., Los Alamos, NM 87545
• OSTI ID: 6021642
• Journal Information: Mod. Phys. Lett. A; (United States), Journal Name: Mod. Phys. Lett. A; (United States) Vol. 2:2; ISSN MPLAE
• 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
BASIC INTERACTIONS
CORRELATIONS
DATA ANALYSIS
DENSITY MATRIX
DISTRIBUTION FUNCTIONS
ELECTROMAGNETIC INTERACTIONS
ELECTRON-POSITRON INTERACTIONS
ELEMENTARY PARTICLES
FUNCTIONS
HADRONS
INTERACTIONS
LASL
LEPTON-LEPTON INTERACTIONS
MATRICES
MULTIPLE PRODUCTION
NATIONAL ORGANIZATIONS
PARTICLE INTERACTIONS
PARTICLE PRODUCTION
PARTICLE PROPERTIES
PARTICLE RAPIDITY
US AEC
US DOE
US ERDA
US ORGANIZATIONS