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

Technical Report · Fri Aug 01 04:00:00 EDT 1980

DOI:https://doi.org/10.2172/5056082· OSTI ID:5056082

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/sup +/ 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. 59 figures, 7 tables.

• Research Organization: California Univ., Berkeley (USA). Lawrence Berkeley Lab.
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 5056082
• Report Number(s): LBL-11322
• 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
CHARGED PARTICLES
DATA
ELECTROMAGNETIC INTERACTIONS
ELECTRON-POSITRON INTERACTIONS
ELEMENTARY PARTICLES
EXPERIMENTAL DATA
GAS TRACK DETECTORS
HADRONS
INFORMATION
INTERACTIONS
JET MODEL
KAONS
KAONS NEUTRAL
LEPTON-LEPTON INTERACTIONS
LINEAR MOMENTUM
LONGITUDINAL MOMENTUM
MASS SPECTRA
MATHEMATICAL MODELS
MEASURING INSTRUMENTS
MESON RESONANCES
MESONS
MULTIWIRE PROPORTIONAL CHAMBERS
NUMERICAL DATA
PARTICLE INTERACTIONS
PARTICLE MODELS
PROPORTIONAL COUNTERS
PSEUDOSCALAR MESONS
RADIATION DETECTORS
RESONANCE PARTICLES
RHO-765 RESONANCES
SHOWER COUNTERS
SPARK CHAMBERS
SPECTRA
STRANGE PARTICLES
TRANSVERSE MOMENTUM
VECTOR MESONS