Photon-hadron interactions in relativistic heavy ion collisions
- Institut fuer Kernphysik (Theorie), Forschungszentrum Juelich, W-5170 Juelich (Germany)
High-energy photon-hadron interactions in relativistic heavy ion collisions are studied in the impulse approximation. This leads to an explicit treatment of the spatial distribution of the constituents in the volume of the nucleus struck by the equivalent photon. Relevant changes in the high-energy tail of the equivalent photon spectrum compared to the conventional method are obtained. Total fragmentation cross sections due to photon-hadron interactions which contribute to the luminosity decrease at colliders like the Brookhaven Relativistic Heavy Ion Collider or the CERN Large Hadron Collider (heavy ions) are also studied. As an important application we study the [gamma][ital g] fusion into quark-antiquark pairs. This gives a handle to determine the gluon distribution function of nucleons inside the nucleus.
- OSTI ID:
- 6391032
- Journal Information:
- Physical Review, C (Nuclear Physics); (United States), Vol. 48:4; ISSN 0556-2813
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
HEAVY ION REACTIONS
PHOTON-HADRON INTERACTIONS
IMPULSE APPROXIMATION
CROSS SECTIONS
FRAGMENTATION
GLUONS
QUARKS
RELATIVISTIC RANGE
BASIC INTERACTIONS
BOSONS
CHARGED-PARTICLE REACTIONS
ELECTROMAGNETIC INTERACTIONS
ELEMENTARY PARTICLES
ENERGY RANGE
FERMIONS
INTERACTIONS
NUCLEAR REACTIONS
PARTICLE INTERACTIONS
POSTULATED PARTICLES
663450* - Heavy-Ion-Induced Reactions & Scattering- (1992-)
662330 - Photon & Charged-Lepton Interactions with Hadrons- (1992)