Inclusive hadron production and two particle correlations in e/sup +/e/sup -/ annihilation at 29 GeV center-of-mass energy

Technical Report · Sat Dec 01 00:00:00 EST 1984

DOI:https://doi.org/10.2172/5773982· OSTI ID:5773982

Shapiro, M

We have studied hadron production in e/sup +/e/sup -/ annihilation at 29 GeV center-of-mass energy using the PEP-4 Time Projection Chamber Detector. The inclusive cross sections and mean multiplicities for ..pi../sup + -/, K/sup + -/ and (p + anti p) production have been measured using ionization energy loss to separate particle species. We find on average 10.7 +- 0.6 ..pi../sup + -/, 1.35 +- .13 K/sup + -/ and 0.60 +- 0.08 (p + anti p) per multihadron event. The differential cross section is well described by a number of Monte Carlo hadronization models. In addition, we have observed correlations in rapidity space for identified pions and kaons. Short-range KK correlations provide evidence for local flavor compensation during hadronization. Long-range ..pi pi.. and KK correlations indicate that the initial partons carry flavor. We also observe significant long-range ..pi..K correlations as a result of heavy quark decays. 85 references, 67 figures, 11 tables.

• Research Organization: Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
• DOE Contract Number: AC03-76SF00098
• OSTI ID: 5773982
• Report Number(s): LBL-18820; ON: DE85009956
• Resource Relation: Other Information: Portions of this document are illegible in microfiche products. Thesis
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANTIPROTONS
PAIR PRODUCTION
PARTICLE PRODUCTION
KAONS
INCLUSIVE INTERACTIONS
PIONS
PROTONS
ANNIHILATION
CROSS SECTIONS
DIFFERENTIAL CROSS SECTIONS
ELECTRON-POSITRON INTERACTIONS
ENERGY LOSSES
EXPERIMENTAL DATA
GEV RANGE 10-100
HADRONS
PARTICLE RAPIDITY
ANTIBARYONS
ANTIMATTER
ANTINUCLEI
ANTINUCLEONS
ANTIPARTICLES
BARYONS
BASIC INTERACTIONS
BOSONS
DATA
ELECTROMAGNETIC INTERACTIONS
ELEMENTARY PARTICLES
ENERGY RANGE
FERMIONS
GEV RANGE
INFORMATION
INTERACTIONS
LEPTON-LEPTON INTERACTIONS
LOSSES
MESONS
NUCLEI
NUCLEONS
NUMERICAL DATA
PARTICLE INTERACTIONS
PARTICLE PROPERTIES
PSEUDOSCALAR MESONS
STRANGE PARTICLES
645101* - High Energy Physics- Particle Interactions & Properties-Experimental- Electromagnetic Interactions & Properties