학술논문
Multi-nucleon transfer in the interaction of 977 MeV and 1143 MeV $^{204}$Hg with $^{208}$Pb
Document Type
Working Paper
Author
Desai, V. V.; Pica, A.; Loveland, W.; Barrett, J. S.; Chemistry, Department of; University, Oregon State; Corvallis; USA, Oregon 97331; McCutchan, E. A.; Center, National Nuclear Data; Laboratory, Brookhaven National; Upton; USA; Zhu, S.; Carpenter, M. P.; Greene, J. P.; Lauritsen, T.; Division, Physics; Laboratory, Argonne National; Argonne; USA, Illinois 60439; Janssens, R. V. F.; Physics, Department of; Astronomy; Hill, University of North Carolina at Chapel; Hill, Chapel; USA, North Carolina 27599; Laboratory, Triangle Universities Nuclear; University, Duke; Durham; USA, North Carolina 27708; Amro, B. M. S.; Physics, Dept. of; Lowell, University of Massachusetts; USA, Lowell MA 01854; Walters, W. B.; Chemistry, Dept. of; Maryland, University of; Park, College; MD
Source
Physical Review C 101, 034612 (2020)
Subject
Language
Abstract
A previous study of symmetric collisions of massive nuclei has shown that current models of multi-nucleon transfer (MNT) reactions do not adequately describe the transfer product yields. To gain further insight into this problem, we have measured the yields of MNT products in the interaction of 977 (E/A = 4.79 MeV) and 1143 MeV (E/A = 5.60 MeV) $^{204}$Hg with $^{208}$Pb. We find that the yield of multi-nucleon transfer products are similar in these two reactions and are substantially lower than those observed in the reaction of 1257 MeV (E/A = 6.16 MeV) $^{204}$Hg + $^{198}$Pt. We compare our measurements with the predictions of the GRAZING-F, di-nuclear systems (DNS) and improved quantum molecular dynamics (ImQMD) models. For the observed isotopes of the elements Au, Hg, Tl, Pb and Bi, the measured values of the MNT cross sections are orders of magnitude larger than the predicted values. Furthermore, the various models predict the formation of nuclides near the N=126 shell, which are not observed.
Comment: 11 figures. arXiv admin note: text overlap with arXiv:1505.00257
Comment: 11 figures. arXiv admin note: text overlap with arXiv:1505.00257