Low p{sub t} pion enhancement in {sup 28}Si + Pb collisions at 14.6 A GeV/c

Conference · Mon Aug 01 04:00:00 EDT 1994

OSTI ID:10169634

Hemmick, T K ^[1]

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1. State Univ. of New York, Stony Brook, NY (United States). Dept. of Physics

The pion is produced copiously in nucleus-nucleus collisions at AGS energies and is expected to be easily thermalized due to its large cross section for interaction in dense nuclear matter. Pion enhancement at low transverse momentum has been predicted as the result of a variety of processes. For example, the decay of the {Delta}(1232) resonance is expected to be a major source of such enhancement and has been proposed as an alternative measure of the system temperature. The nucleons and pions produced as the daughters of the {Delta} share their parent`s energy and thereby produce a cold component of the pion spectrum. The delta resonance is believed to be a major contributor to the imaginary part of the scattering amplitude of the pion in dense baryon rich matter. Here the author presents the first results from identified pion spectra from AGS experiment E814.

• Research Organization: Brookhaven National Lab., Upton, NY (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States); Natural Sciences and Engineering Research Council of Canada, Ottawa, ON (Canada)
• DOE Contract Number: AC02-76CH00016
• OSTI ID: 10169634
• Report Number(s): BNL--49937; CONF-930636--16; ON: DE94015732
• Country of Publication: United States
• Language: English

Related Subjects

663450
663580
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
A = 190-219
HEAVY-ION-INDUCED REACTIONS AND SCATTERING
LEAD 208 TARGET
PARTICLE PRODUCTION
PIONS
SILICON 28 REACTIONS
TRANSVERSE MOMENTUM