Author(s)

Jingyi Zhang

Department of Physics, University of Shanghai for Science and Technology, Shanghai, China.

In this paper we obtain an empirical mass formula of even-A nuclei based on residual proton-neutron interactions. The root-mean-squared deviation (RMSD) from experimental data is at an accuracy of about 150 Kev. While for heavy nuclei, we give another formula that fits the experimental data better (RMSD ≈ 119 Kev). We have successfully described the experimental data of nuclear masses and predicted some unknown masses (like ²⁰⁰Ir not involved in AME2003, the deviation of our predicted masses from the value in AME2012 is only about 82 keV). The predictive power of our formula is more competitive than other mass models.

Residual Proton-Neutron Interactions, Nuclear Masses, Binding Energies

Zhang, J. (2017) Modification of Even-A Nuclear Mass Formula. Journal of Applied Mathematics and Physics, 5, 2302-2310. doi: 10.4236/jamp.2017.511187.