Evaporation residue cross-section measurements for Ti48 -induced reactions
| العنوان: | Evaporation residue cross-section measurements for Ti48 -induced reactions |
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| المؤلفون: | S. Nath, Priya Sharma, M. M. Hosamani, B. R. Behera, G. Mohanto, J. Gehlot, K. Kapoor, Khushboo, N. Madhavan, Meenu Thakur, Kavita Rani, Santanu Kumar Pal, Indranil Mazumdar, Neeraj Kumar, Gurpreet Kaur, S. M. Patel, A. Shamlath, Ruchi Mahajan, Ravindra Dhar Dubey, M. Dhibar |
| المصدر: | Physical Review C. 96 |
| بيانات النشر: | American Physical Society (APS), 2017. |
| سنة النشر: | 2017 |
| مصطلحات موضوعية: | Physics, Recoil, 010308 nuclear & particles physics, 0103 physical sciences, Mass analyzer, Nuclear fusion, New delhi, Heavy ion, Atomic physics, 010306 general physics, 01 natural sciences |
| الوصف: | Background: A significant research effort is currently aimed at understanding the synthesis of heavy elements. For this purpose, heavy ion induced fusion reactions are used and various experimental observations have indicated the influence of shell and deformation effects in the compound nucleus (CN) formation. There is a need to understand these two effects.Purpose: To investigate the effect of proton shell closure and deformation through the comparison of evaporation residue (ER) cross sections for the systems involving heavy compound nuclei around the ${Z}_{\mathrm{CN}}=82$ region.Methods: A systematic study of ER cross-section measurements was carried out for the $^{48}\mathrm{Ti}+^{142,150}\mathrm{Nd}, ^{144}\mathrm{Sm}$ systems in the energy range of $140--205\phantom{\rule{0.28em}{0ex}}\mathrm{MeV}$. The measurement has been performed using the gas-filled mode of the hybrid recoil mass analyzer present at the Inter University Accelerator Centre (IUAC), New Delhi. Theoretical calculations based on a statistical model were carried out incorporating an adjustable barrier scaling factor to fit the experimental ER cross section. Coupled-channel calculations were also performed using the ccfull code to obtain the spin distribution of the CN, which was used as an input in the calculations.Results: Experimental ER cross sections for $^{48}\mathrm{Ti}+^{142,150}\mathrm{Nd}$ were found to be considerably smaller than the statistical model predictions whereas experimental and statistical model predictions for $^{48}\mathrm{Ti}+^{144}\mathrm{Sm}$ were of comparable magnitudes.Conclusion: Though comparison of experimental ER cross sections with statistical model predictions indicate considerable non-compound-nuclear processes for $^{48}\mathrm{Ti}+^{142,150}\mathrm{Nd}$ reactions, no such evidence is found for the $^{48}\mathrm{Ti}+^{144}\mathrm{Sm}$ system. Further investigations are required to understand the difference in fusion probabilities of $^{48}\mathrm{Ti}+^{142}\mathrm{Nd}$ and $^{48}\mathrm{Ti}+^{144}\mathrm{Sm}$ systems. |
| تدمد: | 2469-9993 2469-9985 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::4a66c2b9fac7f956ade80a80ff7ab72c https://doi.org/10.1103/physrevc.96.034613 |
| حقوق: | CLOSED |
| رقم الأكسشن: | edsair.doi...........4a66c2b9fac7f956ade80a80ff7ab72c |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 24699993 24699985 |
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