Charged hadron composition of the final state in e/sup + -/ annihilation up to 1. 9 GeV/c at E/sub cm/ = 29 GeV

Thesis/Dissertation · Sat Jan 01 04:00:00 EST 1983

OSTI ID:6496025

Ong, P P

The momentum distributions of hadrons produced in e/sup +/e/sup -/ collisions at a center of mass energy of 29 GeV have been measured. The data used in this analysis were collected by the High Resolution Spectrometer (HRS) at the Positron Electron Project (PEP) in the Spring of 1982. The HRS is a general purpose particle detector consisting of a 16.2 kgauss solenoidal magnet, 17 layers of tracking chambers and multiple layers of lead-scintillator shower counters. The data consist of 8200 hadronic events, corresponding to an integrated luminosity of 19.6 pbarn/sup -1/ at E/sub cm/ = 29 GeV. Using the barrel shower counters' time-of-flight (TOF) measurements, charged particles in the momentum range 0.5-1.9 GeV/c are separated statistically. Measurements of differential cross sections, scaled cross sections, and charged particle fractions are presented and compared with measurements made by the TASSO and the JADE groups.

• Research Organization: Purdue Univ., Lafayette, IN (USA)
• OSTI ID: 6496025
• Country of Publication: United States
• Language: English

Related Subjects

645101* -- High Energy Physics-- Particle Interactions & Properties-Experimental-- Electromagnetic Interactions & Properties
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANNIHILATION
BASIC INTERACTIONS
CHARGED PARTICLES
CROSS SECTIONS
DATA
ELECTROMAGNETIC INTERACTIONS
ELECTRON-POSITRON INTERACTIONS
ELEMENTARY PARTICLES
ENERGY RANGE
EXPERIMENTAL DATA
GEV RANGE
GEV RANGE 10-100
HADRONS
INFORMATION
INTERACTIONS
LEPTON-LEPTON INTERACTIONS
MULTIPLE PRODUCTION
NUMERICAL DATA
PARTICLE INTERACTIONS
PARTICLE PRODUCTION
PEP STORAGE RINGS
STORAGE RINGS