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The Influence of the Selection of the Parameters of a Statistical Model on the r-Process Yields of \({}^{\textbf{180{-}190}}\)Tb

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Moscow University Physics Bulletin Aims and scope

Abstract

Theoretical cross sections of the neutron capture reaction on neutron-rich isotopes \({}^{180{-}190}\)Tb have been obtained using the TALYS statistical model with various methods of calculating nuclear masses and energy level densities. On the basis of these data, reaction rates at a temperature of \(1.2\) GK corresponding to the explosive evolution of a star have been computed. The obtained rates were used to calculate the astrophysical \(r\)-process using the SkyNet Modular Nuclear Reaction Network Library. Concentrations deviations of \(r\)-process products were computed for different parameters of the statistical model for calculating cross sections.

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Authors and Affiliations

  1. Department of Physics, Moscow State University, 119991, Moscow, Russia

    V. V. Negrebetskiy

  2. Institute of Nuclear Physics, Moscow State University, 119991, Moscow, Russia

    K. A. Stopani

Authors
  1. V. V. Negrebetskiy
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  2. K. A. Stopani
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Correspondence to V. V. Negrebetskiy.

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Translated by O. Pismenov

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Negrebetskiy, V.V., Stopani, K.A. The Influence of the Selection of the Parameters of a Statistical Model on the r-Process Yields of \({}^{\textbf{180{-}190}}\)Tb. Moscow Univ. Phys. 76, 22–28 (2021). https://doi.org/10.3103/S0027134921010082

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  • DOI: https://doi.org/10.3103/S0027134921010082

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