Yıl 2019, Cilt 8 , Sayı , Sayfalar 72 - 76 2019-12-31

Süper-ağır çekirdeklerin kendiliğinden fisyon yarı ömürlerinin farklı modellerdeki hesaplamaları
Calculations of Spontaneous Fission (SF) half-lives of superheavy nuclei in different models

Asım SOYLU [1]


The spontaneous fission (SF) is a key decay energetically feasible for heavy and superheavy nuclei (Z≥90) and it is an important limiting factor which describes the stability of synthesized superheavy nuclei. Since the fission decay is complex, it is difficult to explain such a multi-dimensional system in a complete microscopic manner. In this study, SF half-lives of 284Cn and 284Fl superheavy nuclei are investigated using the direct method, the Universal Decay Law (UDL). The fission decay constant for each possible case is computed by using the UDL and then the SF half-life for 284Cn and 284Fl superheavy nuclei are predicted. The calculated SF half-lives are compared with the results of other semi-empirical formulas as well as experimental data. Furthermore, the results are compared with ones of the model in which they proposed this direct method for the SF by using nuclear proximity and Coulomb potentials. Good agreement is achieved between the results of this approach and the others. This study shows that UDL would also be used in the half-lives calculations of Spontaneous Fission of superheavy nuclei in a direct way.
The spontaneous fission (SF) is a key decay energetically feasible for heavy and superheavy nuclei (Z≥90) and it is an important limiting factor which describes the stability of synthesized superheavy nuclei. Since the fission decay is complex, it is difficult to explain such a multi-dimensional system in a complete microscopic manner. In this study, SF half-lives of 284Cn and 284Fl superheavy nuclei are investigated using the direct method, the Universal Decay Law (UDL). The fission decay constant for each possible case is computed by using the UDL and then the SF half-life for 284Cn and 284Fl superheavy nuclei are predicted. The calculated SF half-lives are compared with the results of other semi-empirical formulas as well as experimental data. Furthermore, the results are compared with ones of the model in which they proposed this direct method for the SF by using nuclear proximity and Coulomb potentials. Good agreement is achieved between the results of this approach and the others. This study shows that UDL would also be used in the half-lives calculations of Spontaneous Fission of superheavy nuclei in a direct way.
  • 1. Oganessian, Y. T., Utyonkov, V. K., Dmitriev, S. N., Lobanov, Y. V., Itkis, M. G., Polyakov, A. N., Sokol, E. A. 2005. Synthesis of elements 115 and 113 in the reaction Am243+Ca 48. Physical Review C, 72(3), 034611. 2. Oganessian, Y. T., Utyonkov, V. K., Lobanov, Y. V., Abdullin, F. S., Polyakov, A. N., Sagaidak, R. N., ... Bogomolov, S. L. 2006. Synthesis of the isotopes of elements 118 and 116 in the cf 249 and cm 245+ ca 48 fusion reactions. Physical Review C, 74(4), 044602. 3. Poenaru, D. N., Gherghescu, R. A. 2018. α decay and cluster radioactivity of nuclei of interest to the synthesis of Z= 119, 120 isotopes. Physical Review C, 97(4), 044621. 4. Santhosh, K. P., Nithya, C. 2018. Predictions on the modes of decay of even Z superheavy isotopes within the range 104≤ Z≤ 136. Atomic Data and Nuclear Data Tables, 119, 33-98. 5. Ni, D., Ren, Z. 2009. Microscopic calculation of α-decay half-lives with a deformed potential. Physical Review C, 80(5), 051303. 6. Zhang, G. L., Le, X. Y., Zhang, H. Q. 2009. Calculation of α preformation for nuclei near N= 162 and N= 184. Physical Review C, 80(6), 064325. 7. Mirea, M., Budaca, R., Sandulescu, A. 2017. Spontaneous fission, cluster emission and alpha decay of 222Ra in a unified description. Annals of Physics, 380, 154-167. 8. Bohr, N., Wheeler, J. A. 1939. The mechanism of nuclear fission. Physical Review, 56:(5), 426. 9. Gamow, G. (1928). Zur quantentheorie des atomkernes. Zeitschrift für Physik, 51(3-4), 204-212. 10. Gurney, R. W., Condon, E. U. 1928. Wave mechanics and radioactive disintegration. Nature, 122 (3073), 439. 11. Xu, C., Ren, Z., Guo, Y. 2008. Competition between α decay and spontaneous fission for heavy and superheavy nuclei. Physical Review C, 78(4), 044329. 12. Santhosh, K. P., Biju, R. K., & Sahadevan, S. 2010. Semi-empirical formula for spontaneous fission half life time. Nuclear Physics A, 832:(3-4), 220-232. 13. Pahlavani, M. R., & Joharifard, M. 2019. Isotopic yield and half-life of spontaneous fission for Cn284 and Fl 284 superheavy isobars using direct calculation and semiempirical formulas. Physical Review C, 99(4), 044601. 14. Poenaru, D. N., Stöcker, H., Gherghescu, R. A. 2018. Cluster and alpha decay of superheavy nuclei. The European Physical Journal A, 54(2) 14. 15. Zhang, Y. L., Wang, Y. Z. 2018. Systematic study of cluster radioactivity of superheavy nuclei. Physical Review C, 97(1), 014318. 16. Qi, C., Xu, F. R., Liotta, R. J., Wyss, R. 2009. Universal decay law in charged-particle emission and exotic cluster radioactivity. Physical review letters, 103(7), 072501. 17. Bao, X. J., Guo, S. Q., Zhang, H. F., Xing, Y. Z., Dong, J. M., Li, J. Q. 2015. Competition between α-decay and spontaneous fission for superheavy nuclei. Journal of Physics G: Nuclear and Particle Physics, 42(8), 085101. 18. Soylu, A.2019. Search for decay modes of heavy and superheavy nuclei. Chinese Physics C, 43(7), 074102. 19. Soylu A. 2019. MES: A Code for Calculations of Half-lives of Alpha, Cluster Decays and Spontaneous Fission, Prediction of Decay Modes of Superheavy Nuclei, unpublished. 20. Audi, G., Kondev, F. G., Wang, M., Huang, W. J., Naimi, S. 2017. The NUBASE2016 evaluation of nuclear properties. Chinese Physics C, 41(3), 030001. 21. Utyonkov, V. K., Brewer, N. T., Oganessian, Y. T., Rykaczewski, K. P., Abdullin, F. S., Dmitriev, S. N., Roberto, J. B. 2015. Experiments on the synthesis of superheavy nuclei Fl 284 and Fl 285 in the Pu 239, 240+ Ca 48 reactions. Physical Review C, 92(3), 034609
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Konular Fen
Bölüm Araştırma Makalesi
Yazarlar

Orcid: 0000-0002-4656-7200
Yazar: Asım SOYLU (Sorumlu Yazar)
Kurum: Niğde Ömer Halisdemir University Physics Department
Ülke: Turkey


Destekleyen Kurum Turkish Science and Research Council (TUBİTAK)
Proje Numarası with Project No: 118R028
Teşekkür This work has been supported by the Turkish Science and Research Council (TUBİTAK) with Project No: 118R028.
Tarihler

Yayımlanma Tarihi : 31 Aralık 2019

Bibtex @araştırma makalesi { bitlisfen663838, journal = {Bitlis Eren Üniversitesi Fen Bilimleri Dergisi}, issn = {2147-3129}, eissn = {2147-3188}, address = {}, publisher = {Bitlis Eren Üniversitesi}, year = {2019}, volume = {8}, pages = {72 - 76}, doi = {10.17798/bitlisfen.663838}, title = {Calculations of Spontaneous Fission (SF) half-lives of superheavy nuclei in different models}, key = {cite}, author = {SOYLU, Asım} }
APA SOYLU, A . (2019). Calculations of Spontaneous Fission (SF) half-lives of superheavy nuclei in different models. Bitlis Eren Üniversitesi Fen Bilimleri Dergisi , 8 () , 72-76 . DOI: 10.17798/bitlisfen.663838
MLA SOYLU, A . "Calculations of Spontaneous Fission (SF) half-lives of superheavy nuclei in different models". Bitlis Eren Üniversitesi Fen Bilimleri Dergisi 8 (2019 ): 72-76 <https://dergipark.org.tr/tr/pub/bitlisfen/issue/51415/663838>
Chicago SOYLU, A . "Calculations of Spontaneous Fission (SF) half-lives of superheavy nuclei in different models". Bitlis Eren Üniversitesi Fen Bilimleri Dergisi 8 (2019 ): 72-76
RIS TY - JOUR T1 - Calculations of Spontaneous Fission (SF) half-lives of superheavy nuclei in different models AU - Asım SOYLU Y1 - 2019 PY - 2019 N1 - doi: 10.17798/bitlisfen.663838 DO - 10.17798/bitlisfen.663838 T2 - Bitlis Eren Üniversitesi Fen Bilimleri Dergisi JF - Journal JO - JOR SP - 72 EP - 76 VL - 8 IS - SN - 2147-3129-2147-3188 M3 - doi: 10.17798/bitlisfen.663838 UR - https://doi.org/10.17798/bitlisfen.663838 Y2 - 2019 ER -
EndNote %0 Bitlis Eren Üniversitesi Fen Bilimleri Dergisi Calculations of Spontaneous Fission (SF) half-lives of superheavy nuclei in different models %A Asım SOYLU %T Calculations of Spontaneous Fission (SF) half-lives of superheavy nuclei in different models %D 2019 %J Bitlis Eren Üniversitesi Fen Bilimleri Dergisi %P 2147-3129-2147-3188 %V 8 %N %R doi: 10.17798/bitlisfen.663838 %U 10.17798/bitlisfen.663838
ISNAD SOYLU, Asım . "Calculations of Spontaneous Fission (SF) half-lives of superheavy nuclei in different models". Bitlis Eren Üniversitesi Fen Bilimleri Dergisi 8 / (Aralık 2020): 72-76 . https://doi.org/10.17798/bitlisfen.663838
AMA SOYLU A . Calculations of Spontaneous Fission (SF) half-lives of superheavy nuclei in different models. Bitlis Eren Üniversitesi Fen Bilimleri Dergisi. 2019; 8: 72-76.
Vancouver SOYLU A . Calculations of Spontaneous Fission (SF) half-lives of superheavy nuclei in different models. Bitlis Eren Üniversitesi Fen Bilimleri Dergisi. 2019; 8: 76-72.