Published September 1, 1984 | Version v1
Journal article Metadata-only

Pion pair production from γγ collisions at the SLAC e+e- storage ring PEP

Creators

  • 1. Stanford Linear Accelerator Center, Stanford University, Stanford, California 94305

Description

We have studied several features of the production of charged-hadron pairs by γγ collisions. We have measured the f0 partial width GAMMA/sub f/0→γγ(Q2) for Q2 in the range 0<Q2<1.4 GeV2/c2, and obtained GAMMA/sub f/0→γγ = 2.52 +- 0.13 +- 0.38 keV at Q2roughly-equal0. The measured Q2 dependence is in agreement with the generalized vector-dominance model. The cross section for γγ→(π+π-+K+K-) in the mass region 1.6< or =M/sub pipi/< or =2.5 GeV/c2 has also been measured and the result compared with that expected from the QCD continuum

Additional details

Publishing Information

Journal Title
Phys. Rev., D
Journal Volume
30
Journal Issue
5
Series
Phys. Rev., D.
Journal Page Range
851-859
ISSN
0556-2821

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
16032960
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Descriptors DEI
CROSS SECTIONS; ELECTRON-POSITRON INTERACTIONS; PAIR PRODUCTION; PEP STORAGE RINGS; PHOTON-PHOTON INTERACTIONS; PIONS; QUANTUM CHROMODYNAMICS; VECTOR DOMINANCE MODEL
Descriptors DEC
BASIC INTERACTIONS; BOSONS; ELECTROMAGNETIC INTERACTIONS; ELEMENTARY PARTICLES; FIELD THEORIES; HADRONS; INTERACTIONS; LEPTON-LEPTON INTERACTIONS; MATHEMATICAL MODELS; MESONS; PARTICLE INTERACTIONS; PARTICLE MODELS; PARTICLE PRODUCTION; PSEUDOSCALAR MESONS; QUANTUM FIELD THEORY; STORAGE RINGS