Strangeness Production in Proton-nucleus Collisions at 200 GeV/c PDF Download
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Author: Erling Andersen
Publisher:
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Languages : en
Pages : 104
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Author: Erling Andersen
Publisher:
ISBN:
Category :
Languages : en
Pages : 104
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Languages : en
Pages : 6
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Central S+S, S+Ag and S+Au collisions at 200 GeV/nucleon were studied in experiment NA35 at the CERN SPS. Recent results on strange particle production as well as the preliminary results on antiproton production are presented and discussed. Enhanced strangeness production relative to the pion and antiproton yields is observed in nucleus-nucleus collisions relative to p-p and p-A. Microscopic string models fail to consistently describe the available set of data.
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Languages : en
Pages :
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Production of strange particles in proton-proton interactions is systematically suppressed relative to the production of non-strange particles. A first order goal of experiments on strangeness production in nucleus-nucleus collisions is to find out if strangeness is suppressed in a way similar to the p-p interactions or whether the nuclear environment changes the behaviour. This paper investigates this possibility. 13 refs., 1 tab.
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Category :
Languages : en
Pages : 108
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Author: Panagiota Foka
Publisher: Atelier d
ISBN:
Category :
Languages : en
Pages : 332
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Une nouvelle méthode d'analyse de données, complétement automatique, fut développée.
Author: J.Paul Davies
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Languages : en
Pages :
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Category :
Languages : en
Pages : 22
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In experiments with oxygen (60 and 200 GeV/N) and sulphur (200 GeV/N) ions at CERNSPS, large energy densities of the order of 2--3 GeV/fm3 have been observed, which according to QCD calculations, satisfy necessary conditions for the formation of a quark gluon plasma (QGP) phase. Under such conditions, colour would no longer be confined to hadronic dimensions, and quarks and gluons will propagate freely throughout an extended volume. Somehow lower energy densities, of the order of 0.7--1 GeV/fm3, were observed in AGS experiments with 15 GeV/N silicon beams and heavy targets. These energy densities might be adequate for investigations of the pre-equilibrium stage, during which the momentum space distribution has been degradated from its initial value but is not yet thermal. First experimental results, available now, show promise of seeing signs of a new phase of matter. In this review the current status of the selective experimental results on strange-particle production, which are relevant to equilibration and QGP formation in nucleus-nucleus collisions, is presented.
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Languages : en
Pages :
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Results on strange particles produced by high energy protons on nuclear targets are reviewed. Topics included are inclusive cross- sections, A-dependence, particle ratios and production polarization of hyperons. 49 refs., 41 figs., 1 tab.
Author: James F. Rychel
Publisher:
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Category : Collisions (Nuclear physics)
Languages : en
Pages : 198
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Author: Christoph Hartnack
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Category :
Languages : en
Pages : 83
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