Kaon and pion production in central Si+Au collisions at 14. 6 A GeV/ c

Journal Article · Mon Feb 19 04:00:00 EST 1990 · Physical Review Letters; (USA)

DOI:https://doi.org/10.1103/PhysRevLett.64.847· OSTI ID:6955070

Abbott, T; Akiba, Y; Alburger, D; Beavis, D; Betts, R R; Birstein, L; Bloomer, M A; Bond, P D; Chasman, C; Chu, Y Y; Cole, B A; Costales, J B; Crawford, H J; Cumming, J B; Debbe, R; Duek, E; Engelage, J; Fung, S Y; Grodzins, L; Gushue, S ; Hamagaki, H; Hansen, O; Hayashi, S; Homma, S; Huang, H Z; Ikeda, Y; Katcoff, S; Kaufman, S; Kimura, K; Kitamura, K; Kurita, K; Ledoux, R J; Levine, M J; Miake, Y; Morse, R J; Nagamiya, S; Olness, J; Parsons, C G; Remsberg, L P; Sarabura, M; Shor, A; Stankus, P; Steadman, S G; Stephans, G S.F.; Sugitate, T; Tannenbaum, M J; Torikoshi, M; van Dijk, J H; Videbaek, F; Vient, M; Vincent, P; Vulgaris, E; Vutsadakis, V; Watson, III, W A; Wegner, H E; Woodruff, D S; Wu, Y D; Zajc, W A ^[1]

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1. Argonne National Laboratory, Physics Division, Argonne, Illinois 60439-4843 (US) Brookhaven National Laboratory, Upton, New York 11973 University of California, Space Sciences Laboratory, Berkeley, California 94720 Uni

Semi-inclusive spectra of {pi}{sup {plus minus}}, {ital K}{sup {plus minus}}, and {ital p} have been measured near midrapidity for central collisions of 14.6{ital A}-GeV/{ital c} {sup 28}Si with {sup 197}Au nuclei. The invariant cross sections are all well fit by exponential distributions in transverse mass, within the measured ranges. The {pi} and {ital K} cross sections can also be fit by Boltzmann distributions. From integrated yields, at midrapidity, the kaon/pion yield ratios are (19.2{plus minus}3)% for {ital K}{sup +}/{pi}{sup +} and (3.6{plus minus}0.8)% for {ital K}{sup {minus}}/{pi}{sup {minus}}; the {pi}{sup +}/{pi}{sup {minus}} ratio is 1.00{plus minus}0.04.

• DOE Contract Number: AC02-76ER03069
• OSTI ID: 6955070
• Journal Information: Physical Review Letters; (USA), Journal Name: Physical Review Letters; (USA) Vol. 64:8; ISSN PRLTA; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

645103* -- High Energy Physics-- Particle Interactions & Properties-Experimental-- Strong Interactions & Baryon & Meson Properties
651920 -- Nuclear Properties & Reactions
A=190-219
Experimental
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BARYONS
BNL
BOLTZMANN STATISTICS
BOSONS
CHARGED-PARTICLE REACTIONS
CROSS SECTIONS
DATA
ELEMENTARY PARTICLES
ENERGY RANGE
EXPERIMENTAL DATA
FERMIONS
GOLD 197 TARGET
HADRONS
HEAVY ION REACTIONS
INCLUSIVE INTERACTIONS
INFORMATION
INTERACTIONS
KAONS
MEASURING METHODS
MESONS
MONTE CARLO METHOD
NATIONAL ORGANIZATIONS
NUCLEAR REACTIONS
NUCLEONS
NUMERICAL DATA
PARTICLE INTERACTIONS
PARTICLE KINEMATICS
PARTICLE PRODUCTION
PIONS
PROTONS
PSEUDOSCALAR MESONS
SILICON 28 REACTIONS
STRANGE MESONS
STRANGE PARTICLES
TARGETS
TEV RANGE
TEV RANGE 01-10
US AEC
US DOE
US ERDA
US ORGANIZATIONS