Measurement of complex fragments and clues to the entropy production from 42-137-MeV/nucleon Ar + Au

  • Intermediate-rapidity fragments with A=1-14 emitted from 42-137-MeV/nucleon Ar + Au have been measured. Evidence is presented that these fragments arise from a common moving source. Entropy values are extracted from the mass distributions by use of quantum statistical and Hauser-Feshbach theories. The extracted entropy values of S/A≈2-2.4 are much smaller than the values expected from measured deuteron-to-proton ratios, but are still considerably higher than theoretically predicted values.

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Author:Barbara V. Jacak, Gary D. WestfallGND, Claus-Konrad Gelbke, L. H. Harwood, William G. LynchORCiD, D. K. Scott, Horst StöckerORCiDGND, M. B. Tsang, Timothy James MacNeil Symons
Parent Title (English):Physical review letters
Document Type:Article
Date of Publication (online):2006/06/13
Year of first Publication:1983
Publishing Institution:Universitätsbibliothek Johann Christian Senckenberg
Release Date:2006/06/13
Page Number:4
First Page:1846
Last Page:1849
Institutes:Physik / Physik
Dewey Decimal Classification:5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik
Licence (German):License LogoDeutsches Urheberrecht