Measurement of Complex Fragments and Clues to the Entropy Production from 42-137-MeV/nucleon Ar + Au
B. V. JacakNational Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48823G. D. WestfallNational Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48823C. K. GelbkeNational Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48823M. H. WoodNational Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48823W. G. LynchNational Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48823D. K. ScottNational Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48823H. P. StokerNational Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48823M. B. TsangNational Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48823T. J. M. SymonsUniversity of California, Berkeley
1983en
ABI
Annotatsiya
Intermediate-rapidity fragments with $A=1\ensuremath{-}14$ 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 $\frac{S}{A}\ensuremath{\approx}2\ensuremath{-}2.4$ 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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