Thermal excitation of heavy nuclei with 5-15 GeV/c antiproton, proton and pion beams

被引：38

作者：

Beaulieu, L ^{[1
]}

Kwiatkowski, K

Hsi, WC

Lefort, T

Pienkowski, L

Korteling, RG

Wang, G

Back, B

Bracken, DS

Breuer, H

Cornell, E

Gimeno-Nogues, F

Ginger, DS

Gushue, S

Huang, MJ

Laforest, R

Lynch, WG

Martin, E

Morley, KB

Remsberg, LP

Rowland, D

Ramakrishnan, E

Ruangma, A

Tsang, MB

Viola, VE

Winchester, E

Xi, H

Yennello, SJ

机构：

[1] Indiana Univ, Dept Chem, Bloomington, IN 47405 USA

[2] Indiana Univ, IUCF, Bloomington, IN 47405 USA

[3] Warsaw Univ, Heavy Ion Lab, Warsaw, Poland

[4] Simon Fraser Univ, Dept Chem, Burnaby, BC V5A 1S6, Canada

[5] Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA

[6] Univ Maryland, Dept Phys, College Pk, MD 20740 USA

[7] Texas A&M Univ, Dept Chem, College Stn, TX 77843 USA

[8] Texas A&M Univ, Cyclotron Lab, College Stn, TX 77843 USA

[9] Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA

[10] Michigan State Univ, Dept Phys, E Lansing, MI 48824 USA

[11] Michigan State Univ, NSCL, E Lansing, MI 48824 USA

[12] Los Alamos Natl Lab, Los Alamos, NM 87545 USA

来源：

PHYSICS LETTERS B | 1999年 / 463卷 / 2-4期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/S0370-2693(99)01016-3

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Excitation-energy distributions have been derived from measurements of 5.0-14.6 GeV/e antiproton, proton and pion reactions with (197)AU target nuclei, using the ISiS 4 pi detector array. The maximum probability for producing high excitation-energy events is found for the 8 GeV/e antiproton beam relative to other hadrons, He-3 and (p) over bar beams from LEAR. For protons and pions, the excitation-energy distributions are nearly independent of hadron type and beam momentum above about 8 GeV/c. The excitation energy enhancement for (p) over bar beams and the saturation effect are qualitatively consistent with intranuclear cascade code predictions. For all systems studied, maximum cluster sizes are observed for residues with E*/A similar to 6 MeV. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：159 / 167

页数：9

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