CHARGED HADRON COMPOSITION OF THE FINAL STATE IN ELECTRON-POSITRON ANNIHILATION UP TO 1.9 GEV/C AT E(CM) = 29 GEV
Abstract
The momentum distributions of hadrons produced in e('+)e('-) 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 8,200 hadronic events, corresponding to an integrated luminosity of 19.6 pbarn('-1) at E(,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, d(sigma)/dp, scaled cross sections, S*(d(sigma)/dXp), and charged particle fractions are presented and compared with measurements made by the TASSO and the JADE groups.
Degree
Ph.D.
Subject Area
Particle physics
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