Hadronic multiplicity distributions: the negative binomial and its alternatives

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

OSTI ID:5572056

Carruthers, P

We review properties of the negative binomial distribution, along with its many possible statistical or dynamical origins. Considering the relation of the multiplicity distribution to the density matrix for boson systems, we re-introduce the partially coherent laser distribution, which allows for coherent as well as incoherent hadronic emission from the k fundamental cells, and provides equally good phenomenological fits to existing data. The broadening of non-single diffractive hadron-hadron distributions can be equally well due to the decrease of coherence with increasing energy as to the large (and rapidly decreasing) values of k deduced from negative binomial fits. Similarly the narrowness of e/sup +/-e/sup -/ multiplicity distribution is due to nearly coherent (therefore nearly Poissonian) emission from a small number of jets, in contrast to the negative binomial with enormous values of k. 31 refs.

• Research Organization: Los Alamos National Lab., NM (USA)
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 5572056
• Report Number(s): LA-UR-86-1540; CONF-8603119-2; ON: DE86011266
• 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
BARYON-BARYON INTERACTIONS
BOSONS
DISTRIBUTION FUNCTIONS
ELECTROMAGNETIC RADIATION
ELECTRON-POSITRON INTERACTIONS
FUNCTIONS
HADRON-HADRON INTERACTIONS
INTERACTIONS
LASER RADIATION
LEPTON-LEPTON INTERACTIONS
MULTIPLICITY
NUCLEON-ANTINUCLEON INTERACTIONS
PARTICLE INTERACTIONS
PROTON-ANTIPROTON INTERACTIONS
RADIATIONS