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Title: Strangeness production in Si + Au interactions at 14. 6 GeV/c per nucleon

Abstract

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.

Authors:
Publication Date:
Research Org.:
Brookhaven National Lab., Upton, NY (USA)
OSTI Identifier:
5811460
Report Number(s):
BNL-43184; CONF-8905143-15
ON: DE90000029
DOE Contract Number:
AC02-76CH00016
Resource Type:
Conference
Resource Relation:
Conference: NATO advanced study institute international advanced course on the nuclear equation of state, Peniscola, Spain, 12 May - 3 Jun 1989; Other Information: Portions of this document are illegible in microfiche products
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; 73 NUCLEAR PHYSICS AND RADIATION PHYSICS; GOLD 197 TARGET; NUCLEAR REACTIONS; STRANGE PARTICLES; PARTICLE PRODUCTION; CROSS SECTIONS; GEV RANGE 10-100; MAGNETIC SPECTROMETERS; PARTICLE RAPIDITY; PROTON-PROTON INTERACTIONS; QUARK-GLUON INTERACTIONS; SILICON; STRANGENESS; BARYON-BARYON INTERACTIONS; ELEMENTARY PARTICLES; ELEMENTS; ENERGY RANGE; GEV RANGE; HADRON-HADRON INTERACTIONS; INTERACTIONS; MEASURING INSTRUMENTS; NUCLEON-NUCLEON INTERACTIONS; PARTICLE INTERACTIONS; PARTICLE PROPERTIES; PROTON-NUCLEON INTERACTIONS; SEMIMETALS; SPECTROMETERS; TARGETS; 645103* - High Energy Physics- Particle Interactions & Properties-Experimental- Strong Interactions & Baryon & Meson Properties; 651920 - Nuclear Properties & Reactions, A=190-219, Experimental

Citation Formats

Hansen, O. Strangeness production in Si + Au interactions at 14. 6 GeV/c per nucleon. United States: N. p., 1989. Web.
Hansen, O. Strangeness production in Si + Au interactions at 14. 6 GeV/c per nucleon. United States.
Hansen, O. 1989. "Strangeness production in Si + Au interactions at 14. 6 GeV/c per nucleon". United States. doi:. https://www.osti.gov/servlets/purl/5811460.
@article{osti_5811460,
title = {Strangeness production in Si + Au interactions at 14. 6 GeV/c per nucleon},
author = {Hansen, O.},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = 1989,
month = 1
}

Conference:
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  • Studies of electro- and photo-production of phi mesons are proposed as a probe of the [ital s[bar s]] content of the nucleon. We present calculations of contributions to the [ital ep][r arrow][ital ep][phi] cross-section from [ital s[bar s]]-knockout and from diffractive production through vector meson dominance. The OZI rule and the ideal mixing of the phi are expected to suppress competing production mechanisms. The knockout and diffractive contributions are found to be of comparable size with [similar to]20% strange quark admixture in the nucleon. It is argued that the contributions may be distinguished through the angular distribution of the phimore » decay and through polarization experiments.« less
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  • Results from CERN experiment NA36 are reported. Cross sections for the production of singly strange particles in the S+Pb and p+Pb reactions have been measured in the rapidity range 1.250.2 GeV. A significant difference in the rapidity distributions of the lambda particles originating from these reactions suggests a fundamental difference in the strangeness production mechanism.
  • Results from the HELIOS External Spectrometer on kaon production in 200 GeV/A S+W and p+W collisions are presented. The K/{pi} ratios are compared with measurements at lower bombarding energies and are found to agree remarkably well. Evidence for secondary production of K{sup +} by meson-baryon rescattering is reviewed. The target rapidity results are compared with neutral strange particle results at midrapidity. 15 refs., 4 figs., 2 tabs.
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