Analysis of hard two-photon correlations measured in heavy-ion reactions at intermediate energies

Journal Article · Thu Feb 01 04:00:00 EST 1996 · Physical Review, C

DOI:https://doi.org/10.1103/PhysRevC.53.R553· OSTI ID:278866

Barz, H W; Kaempfer, B; Wolf, G; Bauer, W ^[1]

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1. Institut fuer Kern-und Hadronenphysik, FZ Rossendorf, PF 510119, 01314 Dresden (Germany)

Recently reported measurements of hard photon correlations in the reactions {sup 36}Ar on {sup 27}Al at 95{ital A} MeV, {sup 86}Kr on {sup nat}Ni at 60{ital A} MeV, and {sup 181}Ta on {sup 197}Au at 39.5{ital A} MeV are analyzed. A Boltzmann-{umlt U}hling-Uhlenbeck transport model is used to describe the photon production by individual nucleon-nucleon collisions. In the lighter systems we find the best agreement with data when taking into account only photons from first-chance collisions of nucleons or photons produced during the passage of the nuclei, while the model predicts also a considerable late-time emission of photons, which leads to a depletion of the calculated correlation function. The accuracy of the present data does not allow firm conclusions on the reliability of this late-time evolution. Our investigations do not support a recently reported interference pattern in the heavy Ta + Au system. {copyright} {ital 1996 The American Physical Society.}

• OSTI ID: 278866
• Journal Information: Physical Review, C, Journal Name: Physical Review, C Journal Issue: 2 Vol. 53; ISSN PRVCAN; ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
ALUMINIUM 27 TARGET
ARGON 36 REACTIONS
COINCIDENCE SPECTROMETRY
CORRELATION FUNCTIONS
GEV RANGE 01-10
GOLD 197 TARGET
HEAVY ION REACTIONS
KRYPTON 86 REACTIONS
NICKEL 58 TARGET
NICKEL 60 TARGET
PARTICLE PRODUCTION
PHOTONS
TANTALUM 181