Elsevier

Physics Letters B

Volume 322, Issues 1–2, 10 February 1994, Pages 43-47
Physics Letters B

Excited state populations for equilibrium and preequilibrium emission

https://doi.org/10.1016/0370-2693(94)90489-8Get rights and content

Abstract

Populations of excited 5Li and 6Li fragments have been measured for the 3He + Ag reaction at 200 MeV. At forward angles, fragments emitted via preequilibrium mechanisms display population probabilities that are consistent with emission temperatures of about 4 MeV, comparable to other measurements of preequilibrium processes. In contrasts, fragments emitted to backward angles display much smaller population probabilities consistent with emission temperatures of about 1 MeV. Such low temperatures are consistent with residue excitation energies predicted by molecular dynamics calculations.

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  • Cited by (4)

    This paper is based upon work supported by the National Science Foundation under Grant No. PHY-89-13815 and by the Department of Energy under Grant No. De.FG0288ER.40404.A000.

    1

    Present address: Brookhaven National Laboratory, Upton, NY 11973, USA.

    2

    present address: Kyoto University, Kyoto 606, Japan.

    3

    Present address: Department of Physics, KEK, Ibaraki 305, Japan.

    4

    Present address: Nevis Laboratories, Columbia University, Irvington, NY 10533, USA.

    5

    Present address: Cornell University, Ithaca, NY 14853, USA.

    6

    Present address: Texas A&M University, Krakow, Poland. 77843, USA.

    7

    Present address: Lawrence Berkeley Laboratory, Berkeley, CA 94720, USA.

    8

    Present address: Jagellonian University, Krakow, Poland.

    9

    Present address: Iowa State University, Ames, IA 50011, USA.

    10

    Present address: Sabbagh Associates, Bloomington, IN 47410, USA.

    11

    Present address: Institute for Atomic Energy, Beijing, China.

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