Subthreshold antiproton, K sup minus , K sup + , and energetic-pion production in relativistic nucleus-nucleus collisions

Journal Article · Mon Nov 13 00:00:00 EST 1989 · Physical Review Letters; (USA)

DOI:https://doi.org/10.1103/PhysRevLett.63.2192· OSTI ID:5242680

Shor, A; Barasch, E F; Carroll, J B; Hallman, T; Igo, G; Kalnins, G; Kirk, P; Krebs, G F; Lindstrom, P; McMahan, M A; Perez-Mendez, V; Trentalange, S; Urban, F J; Wang, Z F ^[1]

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1. Lawrence Berkeley Laboratory, Berkeley, California 94720 (US) Weizmann Institute of Science, Rehovot 76100, Israel Texas A M University, College Station, Texas 77843 University of California, Los Angeles, California 90024 Johns Hopkins University, Baltimore, Maryland 21218 Louisiana State University, Baton Rouge, Louisiana 70803

We present a measurement of subthreshold antiproton, kaon, and energetic pion production at 0{degree} for the reactions {sup 28}Si+{sup 28}Si at 2.0 GeV/nucleon ({ital E}{sub available}/A=0.82 GeV) and 1.65 GeV/nucleon ({ital E}{sub available}/A=0.70 GeV), and for {sup 20}Ne+NaF at 2.0 GeV/nucleon. For a given reaction, the particle yields, plotted as a function of the required excitation energy, exhibit a scaling behavior independent of particle species. Implications for collectivity and a common production mechanism are discussed.

• DOE Contract Number: AC03-76SF00098
• OSTI ID: 5242680
• Journal Information: Physical Review Letters; (USA), Vol. 63:20; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANTIPROTONS
PARTICLE PRODUCTION
KAONS MINUS
KAONS PLUS
PIONS
SILICON 28 REACTIONS
HEAVY ION REACTIONS
SILICON 28 TARGET
CROSS SECTIONS
ENERGY DEPENDENCE
EXPERIMENTAL DATA
GEV RANGE 10-100
NEON 20 REACTIONS
NUCLEAR MATTER
PROTON-ANTIPROTON INTERACTIONS
SODIUM FLUORIDES
TIME-OF-FLIGHT METHOD
ALKALI METAL COMPOUNDS
ANTIBARYONS
ANTIMATTER
ANTINUCLEI
ANTINUCLEONS
ANTIPARTICLES
BARYON-BARYON INTERACTIONS
BARYONS
BOSONS
CHARGED-PARTICLE REACTIONS
DATA
ELEMENTARY PARTICLES
ENERGY RANGE
FERMIONS
FLUORIDES
FLUORINE COMPOUNDS
GEV RANGE
HADRON-HADRON INTERACTIONS
HADRONS
HALIDES
HALOGEN COMPOUNDS
INFORMATION
INTERACTIONS
KAONS
MATTER
MESONS
NUCLEAR REACTIONS
NUCLEI
NUCLEON-ANTINUCLEON INTERACTIONS
NUCLEONS
NUMERICAL DATA
PARTICLE INTERACTIONS
PSEUDOSCALAR MESONS
SODIUM COMPOUNDS
STRANGE MESONS
STRANGE PARTICLES
TARGETS
653003* - Nuclear Theory- Nuclear Reactions & Scattering