Published February 1982 | Version v1
Report Restricted

A study of two photon production of two-body final states with invariant mass greater than 2.0 GeV

Creators

  • 1. Technische Hochschule Aachen (Germany, F.R.). Lehrstuhl fuer Experimentalphysik 1A und 1. Physikalisches Inst.
  • 2. Bergen Univ. (Norway)

Description

We have measured the electron, muon, and charged-hadron pair production rates in two-photon interactions for invariant masses above 2.0 GeV over a large range of momentum transfers. The cross sections for electron and muon pairs show good agreement with the QED predictions at both small and large momentum transfers. The observed rate of hadron production is less than 6% of the rate that QED predicts for point-like hadrons, consistent with recent leading-order QCD calculations. (orig.)

Availability note (English)

MF available from INIS under the Report Number.

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Additional details

Publishing Information

Imprint Pagination
11 p.
Report number
DESY--82-004

INIS

Country of Publication
Germany
Country of Input or Organization
Germany
INIS RN
13688297
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Resource subtype / Literary indicator
Numerical Data
Descriptors DEI
ANTIPROTONS; DIFFERENTIAL CROSS SECTIONS; ELECTRON-POSITRON INTERACTIONS; ELECTRONS; ELECTROPRODUCTION; EXPERIMENTAL DATA; GEV RANGE 01-10; INTEGRAL CROSS SECTIONS; KAONS MINUS; KAONS PLUS; MUONS MINUS; MUONS PLUS; PAIR PRODUCTION; PHOTON-PHOTON INTERACTIONS; PHOTOPRODUCTION; PIONS MINUS; PIONS PLUS; POSITRONS; PROTONS
Descriptors DEC
ANTIBARYONS; ANTILEPTONS; ANTIMATTER; ANTIMESONS; ANTINUCLEI; ANTINUCLEONS; ANTIPARTICLES; BARYONS; BASIC INTERACTIONS; BOSONS; CATIONS; CHARGED PARTICLES; CROSS SECTIONS; DATA; ELECTROMAGNETIC INTERACTIONS; ELEMENTARY PARTICLES; ENERGY RANGE; FERMIONS; GEV RANGE; HADRONS; HYDROGEN IONS; HYDROGEN IONS 1 PLUS; INFORMATION; INTERACTIONS; IONS; KAONS; LEPTON-LEPTON INTERACTIONS; LEPTONS; MATTER; MESONS; MUONS; NUCLEI; NUCLEONS; NUMERICAL DATA; PARTICLE INTERACTIONS; PARTICLE PRODUCTION; PIONS; PSEUDOSCALAR ANTIMESONS; PSEUDOSCALAR MESONS; STRANGE PARTICLES

Optional Information

Notes
PLUTO Collaboration.