Published November 1990 | Version v1
Report Metadata-only

Direct photon production in γγ collisions

Creators

Description

The production of a hard photon balanced by a jet in the reaction γ + γ → jet + γ + X is shown to offer a good probe of the hadronic structure of the photon at e+e- colliders. The cross section for pTγ > 1.5 GeV ranges from ≅ 0.3 pb at PEP to ≅ 1 pb at TRISTAN to ≅ 6 pb at LEP 200. For √s ≥ 150 GeV, the study of this process will yield important information on the gluon density inside the photon, about which very little is known experimentally at present. (orig.)

Availability note (English)

Available from Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany, F.R.).

Additional details

Publishing Information

Imprint Pagination
15 p.
Report number
DESY--90-143

INIS

Country of Publication
Germany
Country of Input or Organization
Germany
INIS RN
22040651
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Resource subtype / Literary indicator
Numerical Data, Non-conventional Literature
Descriptors DEI
ANNIHILATION; DIFFERENTIAL CROSS SECTIONS; ELECTRON-POSITRON INTERACTIONS; ELECTRONS; ELECTROPRODUCTION; ENERGY DEPENDENCE; EXCITATION FUNCTIONS; FEYNMAN DIAGRAM; GEV RANGE 10-100; GEV RANGE 100-1000; GLUON MODEL; GLUONS; HADRONS; INCLUSIVE INTERACTIONS; INTEGRAL CROSS SECTIONS; JET MODEL; MULTIPLE PRODUCTION; PARTICLE STRUCTURE; PHOTON-PHOTON INTERACTIONS; PHOTONS; PHOTOPRODUCTION; POSITRONS; QUARK-ANTIQUARK INTERACTIONS; QUARK-GLUON INTERACTIONS; QUARKS; QUASI-ELASTIC SCATTERING; THEORETICAL DATA; TRANSVERSE MOMENTUM
Descriptors DEC
ANTILEPTONS; ANTIMATTER; ANTIPARTICLES; BASIC INTERACTIONS; BOSONS; CROSS SECTIONS; DATA; DIAGRAMS; ELECTROMAGNETIC INTERACTIONS; ELEMENTARY PARTICLES; ENERGY RANGE; FERMIONS; GEV RANGE; INFORMATION; INTERACTIONS; LEPTON-LEPTON INTERACTIONS; LEPTONS; LINEAR MOMENTUM; MASSLESS PARTICLES; MATHEMATICAL MODELS; MATTER; NUCLEAR REACTIONS; NUMERICAL DATA; PARTICLE INTERACTIONS; PARTICLE MODELS; PARTICLE PRODUCTION; POSTULATED PARTICLES; SCATTERING

Optional Information

Secondary number(s)
BU-TH--90/3.