Investigation of proton radioactivity with the effective liquid drop model

  • Proton radioactivity has been investigated using the effective liquid drop model with varying mass asymmetry shapes and effective inertial coefficients. An effective nuclear radius constant formula replaces the old empirical one in the calculations. The theoretical half-lives are in good agreement with the available experimental data. All the deviations between the calculated logarithmic half-lives and the experimental values are less than 0.8. The root-mean-square (rms) deviation is 0.523. Predictions for the half-lives of proton radioactivity are made for elements across the periodic table. From the theoretical results, there are 11 candidate nuclei for proton radioactivity in the region Z<51. In the region Z>83, no nuclei are suggested as probable candidate nuclei for proton radioactivity within the selected range of half-lives studied.
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SHENG Zong-Qiang, SHU Liang-Ping, FAN Guang-Wei, MENG Ying and QIAN Jian-Fa. Investigation of proton radioactivity with the effective liquid drop model[J]. Chinese Physics C, 2015, 39(2): 024102. doi: 10.1088/1674-1137/39/2/024102
SHENG Zong-Qiang, SHU Liang-Ping, FAN Guang-Wei, MENG Ying and QIAN Jian-Fa. Investigation of proton radioactivity with the effective liquid drop model[J]. Chinese Physics C, 2015, 39(2): 024102.  doi: 10.1088/1674-1137/39/2/024102 shu
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Received: 2014-05-06
Revised: 1900-01-01
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Investigation of proton radioactivity with the effective liquid drop model

    Corresponding author: SHENG Zong-Qiang,

Abstract: Proton radioactivity has been investigated using the effective liquid drop model with varying mass asymmetry shapes and effective inertial coefficients. An effective nuclear radius constant formula replaces the old empirical one in the calculations. The theoretical half-lives are in good agreement with the available experimental data. All the deviations between the calculated logarithmic half-lives and the experimental values are less than 0.8. The root-mean-square (rms) deviation is 0.523. Predictions for the half-lives of proton radioactivity are made for elements across the periodic table. From the theoretical results, there are 11 candidate nuclei for proton radioactivity in the region Z<51. In the region Z>83, no nuclei are suggested as probable candidate nuclei for proton radioactivity within the selected range of half-lives studied.

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