Global transverse energy distributions in relativistic nuclear collisions at 14. 6 A GeV/ c

Journal Article · Mon Jun 01 04:00:00 EDT 1992 · Physical Review, C (Nuclear Physics); (United States)

DOI:https://doi.org/10.1103/PhysRevC.45.2933· OSTI ID:7286583

Abbott, T; Akiba, Y; Alburger, D; Beavis, D; Birstein, L; Bloomer, M A; Bond, P D; Chasman, C; Chen, Z; 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; Hayano, R S; Hayashi, S; Homma, S; Huang, H Z; Ikeda, Y; Juricic, I; Kang, J; Katcoff, S; Kaufman, S; Kimura, K; Kitamura, K; Kurita, K; Ledoux, R J; LeVine, M J; Miake, Y; Morse, R J; Moskowitz, B; Nagamiya, S; Olness, J; Parsons, C G; Remsberg, L P; Sakurai, H; Sarabura, M; Shor, A; Stankus, P; Steadman, S G; Stephans, G S.F.; Sugitate, T; Tanaka, M; 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 ^[1]

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1. Argonne National Laboratory, Argonne, Illinois 60439 (United States) Brookhaven National Laboratory, Upton, New York 11973 (United States) Space Scie

A systematic set of measurements of the global transverse energy distributions, {ital d}{sigma}/{ital dE}{sub {ital T}} and {ital dE}{sub {ital T}}/{ital d}{eta}, from beams of protons, {sup 16}O and {sup 28}Si at 14.6{ital A} GeV/{ital c}, incident on targets ranging from Be to Au is presented. The detector was a semicircular array of lead-glass blocks, covering polar angles 9{degree}{lt}{theta}{lt}32{degree}, whose total response provides a good measure of the produced particle yield in the central rapidity region of these reactions. Proton-nucleus spectra exhibit a similar shape on the high-energy tail, independent of target, suggesting that produced particles in such events arise mostly from the first collision of the projectile proton. For targets heavier than Cu, the high-energy edges of the oxygen-nucleus spectra, and of the silicon-nucleus spectra, reach ratios consistent with the geometry of central collisions. Angular distributions, {ital dE}{sub {ital T}}/{ital d}{eta}, are characterized by Gaussian fits, and an acceptance-independent form of the differential cross section is found, based on the maximum value of {ital dE}{sub {ital T}}/{ital d}{eta}. The projectile dependence of nucleus-nucleus spectra is studied in terms of two very different models: simple energy scaling and the wounded projectile nucleon model of {ital p}+{ital A} convolutions.

• DOE Contract Number: FG03-86ER40271
• OSTI ID: 7286583
• Journal Information: Physical Review, C (Nuclear Physics); (United States), Journal Name: Physical Review, C (Nuclear Physics); (United States) Vol. 45:6; ISSN 0556-2813; ISSN PRVCA
• Country of Publication: United States
• Language: English

Related Subjects

663430* -- Nucleon-Induced Reactions & Scattering-- (1992-)
663450 -- Heavy-Ion-Induced Reactions & Scattering-- (1992-)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANGULAR DISTRIBUTION
BARYON REACTIONS
CHARGED-PARTICLE REACTIONS
CROSS SECTIONS
DISTRIBUTION
ENERGY RANGE
ENERGY SPECTRA
HADRON REACTIONS
HEAVY ION REACTIONS
NUCLEAR REACTIONS
NUCLEON REACTIONS
OXYGEN 16 REACTIONS
PARTICLE PRODUCTION
PROTON REACTIONS
RELATIVISTIC RANGE
SILICON 28 REACTIONS
SPECTRA
TOTAL CROSS SECTIONS