Stringent constraints on nuclear dissipation by second-chance survival probability

We propose second-chance survival probability (Psur2) as a new observable to constrain the nuclear dissipation strength (β). Using the Langevin model, we calculate Psur2 as a function of β for 232Cf, 230Cm, and 216U at different bombarding energies Elab, which are respectively populated in 28S + 204...

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Main Authors: N. Wang, W. Ye
Format: Article
Language:English
Published: Elsevier 2023-08-01
Series:Physics Letters B
Online Access:http://www.sciencedirect.com/science/article/pii/S0370269323003441
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author N. Wang
W. Ye
author_facet N. Wang
W. Ye
author_sort N. Wang
collection DOAJ
description We propose second-chance survival probability (Psur2) as a new observable to constrain the nuclear dissipation strength (β). Using the Langevin model, we calculate Psur2 as a function of β for 232Cf, 230Cm, and 216U at different bombarding energies Elab, which are respectively populated in 28S + 204Pb, 26Si + 204Pb, and 36Ar + 180W reactions. It is shown that Psur2 is quite sensitive to β. Moreover, we find that the dependence of Psur2 on β is far larger than on Elab, indicating the robustness of using Psur2 to pinpoint β. Our findings suggest that in experiments, a measurement of the second-chance survival probability of neutron-deficient heavy systems at a high energy not only puts a stronger constraint on presaddle friction, but also it provides a good way to probe the temperature dependence of nuclear dissipation.
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spelling doaj.art-58c6853ff2d84caeb7390ada8b80fb872023-07-21T04:58:14ZengElsevierPhysics Letters B0370-26932023-08-01843138010Stringent constraints on nuclear dissipation by second-chance survival probabilityN. Wang0W. Ye1School of Science, Jiangsu University of Science and Technology, Zhenjiang 212100, People's Republic of China; Corresponding authors.Department of Physics, Southeast University, Nanjing 210096, People's Republic of China; Corresponding authors.We propose second-chance survival probability (Psur2) as a new observable to constrain the nuclear dissipation strength (β). Using the Langevin model, we calculate Psur2 as a function of β for 232Cf, 230Cm, and 216U at different bombarding energies Elab, which are respectively populated in 28S + 204Pb, 26Si + 204Pb, and 36Ar + 180W reactions. It is shown that Psur2 is quite sensitive to β. Moreover, we find that the dependence of Psur2 on β is far larger than on Elab, indicating the robustness of using Psur2 to pinpoint β. Our findings suggest that in experiments, a measurement of the second-chance survival probability of neutron-deficient heavy systems at a high energy not only puts a stronger constraint on presaddle friction, but also it provides a good way to probe the temperature dependence of nuclear dissipation.http://www.sciencedirect.com/science/article/pii/S0370269323003441
spellingShingle N. Wang
W. Ye
Stringent constraints on nuclear dissipation by second-chance survival probability
Physics Letters B
title Stringent constraints on nuclear dissipation by second-chance survival probability
title_full Stringent constraints on nuclear dissipation by second-chance survival probability
title_fullStr Stringent constraints on nuclear dissipation by second-chance survival probability
title_full_unstemmed Stringent constraints on nuclear dissipation by second-chance survival probability
title_short Stringent constraints on nuclear dissipation by second-chance survival probability
title_sort stringent constraints on nuclear dissipation by second chance survival probability
url http://www.sciencedirect.com/science/article/pii/S0370269323003441
work_keys_str_mv AT nwang stringentconstraintsonnucleardissipationbysecondchancesurvivalprobability
AT wye stringentconstraintsonnucleardissipationbysecondchancesurvivalprobability