Pion interferometry in E814 -- Toward equilibrium at the AGS

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The ultimate goal of ultra-relativistic heavy-ion program at the BNL AGS and CERN SPS is to study highly excited nuclear matter and the transition from hadronic matter to quark gluon plasma. In the QGP state, quarks and gluons are no longer confined but they move freely in a fairly large volume. According to their knowledge, the de-confined state can be approached via either compression or heating of nuclear matter in heavy-ion collisions. At AGS energies, the most relevant process is believed to be compression. However, before the authors try to identify any exotic events such as, for example QGP phase ... continued below

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8 p.

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Xu, N. & Collaboration, E814 December 31, 1994.

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Description

The ultimate goal of ultra-relativistic heavy-ion program at the BNL AGS and CERN SPS is to study highly excited nuclear matter and the transition from hadronic matter to quark gluon plasma. In the QGP state, quarks and gluons are no longer confined but they move freely in a fairly large volume. According to their knowledge, the de-confined state can be approached via either compression or heating of nuclear matter in heavy-ion collisions. At AGS energies, the most relevant process is believed to be compression. However, before the authors try to identify any exotic events such as, for example QGP phase transition or chiral symmetry restoration, they have to answer the following questions: (1) Were the densities(due to the compression) high enough? (2) Was the high density region large enough? (3) Was the system thermalized? The authors report recent pion interferometry results from AGS experiment E814. By comparing to the results of RQMD calculations, a freeze-out size R{sub rms} = 8.3 fm is found in Si + Pb central collisions. A consistent thermal equilibration picture is established by comparing experimental data with the results of both hydrodynamic and cascade model calculations.

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8 p.

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INIS; OSTI as DE95008860

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  • 10. winter workshop on nuclear dynamics, Snowbird, UT (United States), 15-21 Jan 1995

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  • Other: DE95008860
  • Report No.: BNL--61514
  • Report No.: CONF-950180--1
  • Grant Number: AC02-76CH00016
  • DOI: 10.2172/41376 | External Link
  • Office of Scientific & Technical Information Report Number: 41376
  • Archival Resource Key: ark:/67531/metadc679544

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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  • December 31, 1994

Added to The UNT Digital Library

  • July 25, 2015, 2:20 a.m.

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  • Nov. 24, 2015, 7:25 p.m.

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Xu, N. & Collaboration, E814. Pion interferometry in E814 -- Toward equilibrium at the AGS, report, December 31, 1994; Upton, New York. (digital.library.unt.edu/ark:/67531/metadc679544/: accessed October 17, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.