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Systematic study of proton radioactivity of spherical proton emitters with Skyrme interactions

  • Regular Article –Theoretical Physics
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Abstract

Proton radioactivity is an important and common process of the natural radioactivity of proton-rich nuclei. In our previous work (Cheng et al. in Nucl Rhys A 997: 121717, 2020), we systematically studied the proton radioactivity half-lives of \(53\le Z \le 83\) nuclei within the two-potential approach with Skyrme–Hartree–Fock. The calculations can well reproduce the experimental data of spherical nuclei. The present work is an extension of the previous work. We systematically study 32 proton radioactivity half-lives of spherical nuclei with the two-potential approach with Skyrme–Hartree–Fock (TPA-SHF) within 115 different versions of the Skyrme interactions. The calculated results indicate that the SLy7 Skyrme interaction gives the lowest r.m.s. deviation in the description of the experimental data of the spherical proton emitters among all the different versions of the Skyrme interactions. In addition, we use this model with the SLy7 Skyrme interaction to predict the proton radioactivity half-lives of 7 spherical nuclei in the same region, whose proton radioactivity is energetically allowed or has been observed but is not yet quantified.

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Data Availability Statement

This manuscript has associated data in a data repository. [Authors’ comment:All data generated during this study are contained in this published article.]

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Acknowledgements

This work is supported in part by the National Natural Science Foundation of China (Grant No. 11205083, No. 11505100, and No.11905302), the construct program of the key discipline in Hunan province, the Research Foundation of Education Bureau of Hunan Province, China (Grant No. 18A237 and No. 18B263), the Natural Science Foundation of Hunan Province, China (Grant No. 2015JJ3103, No. 2015JJ2123 and No.2018JJ2321), the Innovation Group of Nuclear and Particle Physics in USC, the Shandong Province Natural Science Foundation, China (Grant No. ZR2015AQ007) and the Opening Project of Cooperative Innovation Center for Nuclear Fuel Cycle Technology and Equipment, University of South China (Grant No. 2019KFZ10).

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Authors and Affiliations

  1. School of Nuclear Science and Technology, University of South China, Hengyang, 421001, China

    Jun-Hao Cheng, Xiao Pan, You-Tian Zou & Xiao-Hua Li

  2. Nuclear Power Institute of China, Chengdu, 610041, China

    Jun-Hao Cheng

  3. Cooperative Innovation Center for Nuclear Fuel Cycle Technology and Equipment, University of South China, Hengyang, 421001, China

    Xiao-Hua Li

  4. Key Laboratory of Low Dimensional Quantum Structures and Quantum Control, Hunan Normal University, Changsha, 410081, China

    Xiao-Hua Li

  5. Sino-French Institute of Nuclear Engineering and Technology, Sun Yat-sen University, Zhuhai, 519082, China

    Zhen Zhang

  6. School of Science, Qingdao Technological University, Qingdao, 266000, China

    Peng-Cheng Chu

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  1. Jun-Hao Cheng
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Correspondence to Xiao-Hua Li.

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Communicated by Pierre Capel.

Xiao-Hua Li, Zhen Zhang and Peng-Cheng Chu have equally contributed to this work.

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Cheng, JH., Pan, X., Zou, YT. et al. Systematic study of proton radioactivity of spherical proton emitters with Skyrme interactions. Eur. Phys. J. A 56, 273 (2020). https://doi.org/10.1140/epja/s10050-020-00280-z

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