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

L. Beaulieu; K. Kwiatkowski; W. -c. Hsi; T. Lefort; L. Pienkowski; R. G. Korteling; G. Wang; B. Back; D. S. Bracken; H. Breuer; E. Cornell; F. Gimeno-Nogues; D. S. Ginger; S. Gushue; M. J. Huang; R. Laforest; W. G. Lynch; E. Martin; K. B. Morley; E. Ramakrishnan; L. P. Remsberg; D. Rowland; A. Ruangma; M. B. Tsang; V. E. Viola; E. Winchester; H. Xi; S. J. Yennello

doi:10.1016/s0370-2693(99)01016-3

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arXiv · nucl-ex/9906012

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

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Abstract

Excitation-energy distributions have been derived from measurements of 5.0-14.6 GeV/c antiproton, proton and pion reactions with $^{197}$Au target nuclei, using the ISiS 4$π$ detector array. The maximum probability for producing high excitation-energy events is found for the antiproton beam relative to other hadrons, $^3$He and $\bar{p}$ 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 $\bar{p}$ 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 $\sim$ 6 MeV.

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L. Beaulieu, K. Kwiatkowski, W. -c. Hsi, T. Lefort, L. Pienkowski, R. G. Korteling, G. Wang, B. Back, D. S. Bracken, H. Breuer, E. Cornell, F. Gimeno-Nogues, D. S. Ginger, S. Gushue, M. J. Huang, R. Laforest, W. G. Lynch, E. Martin, K. B. Morley, E. Ramakrishnan, L. P. Remsberg, D. Rowland, A. Ruangma, M. B. Tsang, V. E. Viola, E. Winchester, H. Xi, S. J. Yennello. 1999-08-30. Thermal excitation of heavy nuclei with 5-15 GeV/c antiproton, proton and pion beams. https://doi.org/10.1016/s0370-2693(99)01016-3

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