Mass parametrizations and predictions of isotopic observables

S. R. Souza; P. Danielewicz; S. Das Gupta; R. Donangelo; W. A. Friedman; W. G. Lynch; W. P. Tan; M. B. Tsang

doi:10.1103/PhysRevC.67.051602

Rapid Communication

Mass parametrizations and predictions of isotopic observables

S. R. Souza, P. Danielewicz, S. Das Gupta, R. Donangelo, W. A. Friedman, W. G. Lynch, W. P. Tan, and M. B. Tsang

Phys. Rev. C 67, 051602(R) – Published 19 May 2003

Abstract

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.

Received 3 February 2003

DOI:https://doi.org/10.1103/PhysRevC.67.051602

Authors & Affiliations

S. R. Souza¹, P. Danielewicz², S. Das Gupta³, R. Donangelo¹, W. A. Friedman⁴, W. G. Lynch², W. P. Tan^2,*, and M. B. Tsang^2,†

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

^*Present address: University of Notre Dame, South Bend, IN.
^†Email address: tsang@nscl.msu.edu

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Vol. 67, Iss. 5 — May 2003

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Physical Review C

covering nuclear physics