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Phys. Rev. C 67, 051602(R) (2003) [5 pages]

Mass parametrizations and predictions of isotopic observables

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S. R. Souza1, P. Danielewicz2, S. Das Gupta3, R. Donangelo1, W. A. Friedman4, W. G. Lynch2, W. P. Tan2,*, and M. B. Tsang2,†
1Instituto de Física, Universidade Federal do Rio de Janeiro, Cidade Universitária, Caixa Postal 68528, 21941-972 Rio de Janeiro, Brazil
2National Superconducting Cyclotron Laboratory and Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824
3Physics Department, McGill University, 3600 University Street, Montreal H3A 2T8, Canada
4Department of Physics, University of Wisconsin, Madison, Wisconsin 53706

Received 3 February 2003; published 19 May 2003

We discuss the accuracy of mass models for extrapolating to very asymmetric nuclei and the impact of such extrapolations on the predictions of isotopic observables in multifragmentation. We obtain improved mass predictions by incorporating measured masses and extrapolating to unmeasured masses with a mass formula that includes surface symmetry and Coulomb terms. We find that using accurate masses has a significant impact on the predicted isotopic observables.

© 2003 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevC.67.051602
DOI:
10.1103/PhysRevC.67.051602
PACS:
24.10.Pa, 24.60.-k, 21.65.+f, 25.70.Pq

*Present address: University of Notre Dame, South Bend, IN.

†Email address: tsang@nscl.msu.edu

 
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