Jets in e/sup +/e/sup -/ annihilation

Thesis/Dissertation · Tue Jan 01 04:00:00 EST 1980

OSTI ID:5437359

Cooper, S C

The properties of jets produced in e/sup +/e/sup -/ annihilation have been investigated using data taken with the Mark 1 detector at SPEAR. The momentum distributions parallel and perpendicular to the jet axis were measured for all charged tracks, for K/sup 0/s, and for rho/sup 0/s. The K/sup 0/ and rho/sup 0/Pt/sup 2/ distributions are well fit by the form dn/dPt/sup 2/ = A exp(-B Pt/sup 2/) with B = 4.6 +/ -0.2 for K/sup 0/s and 5 +/-1 for rho/sup 0/s. The charged particle Pt/sup 2/ distribution cannot be fit with a single exponential, but is similar to that of K/sup 0/s and rho/sup 0/s above Pt/sup 2/ approx. 0.2 GeV/sup 2/. The charged particle and K/sup 0/ parallel momentum distributions are similar in shape and approximately exponential. The production of rho/sup 0/s at low parallel momentum is suppressed. The average number of rho/sup 0/s per event is 0.4 +/-0.1.

• Research Organization: California Univ., Berkeley (USA)
• OSTI ID: 5437359
• 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
BOSONS
ELECTROMAGNETIC INTERACTIONS
ELECTRON-POSITRON INTERACTIONS
ELEMENTARY PARTICLES
HADRONS
INTERACTIONS
JETS
KAONS
KAONS NEUTRAL
LEPTON-LEPTON INTERACTIONS
MESON RESONANCES
MESONS
MOMENTUM TRANSFER
PARTICLE INTERACTIONS
PSEUDOSCALAR MESONS
RESONANCE PARTICLES
RHO-765 RESONANCES
STRANGE PARTICLES
VECTOR MESONS