Production mechanism of new neutron-rich heavy nuclei in the ${}^{136}\text{Xe}+{}^{198}\text{Pt}$ reaction

Journal Article · Mon Jan 01 00:00:00 EST 2018 · Physics Letters B

DOI:https://doi.org/10.1016/j.physletb.2017.11.060· OSTI ID:1410592

Li, Cheng; Wen, Peiwei; Li, Jingjing; Zhang, Gen; Li, Bing; Xu, Xinxin; Liu, Zhong; Zhu, Shaofei; Zhang, Feng-Shou

Here, the multinucleon transfer reaction of ₁₃₆Xe + ¹⁹⁸Pt at E_lab = 7.98MeV / nucleon is investigated by using the improved quantum molecular dynamics model. The quasielastic, deep-inelastic, and quasifission collision mechanisms are studied via analyzing the angular distributions of fragments and the energy dissipation processes during the collisions. The measured isotope production cross sections of projectile-like fragments are reasonably well reproduced by the calculation of the ImQMD model together with the GEMINI code. The isotope production cross sections for the target-like fragments and double differential cross sections of ¹⁹⁹Pt, ²⁰³Pt, and ²⁰⁸Pt are calculated. It is shown that about 50 new neutron-rich heavy nuclei can be produced via deep-inelastic collision mechanism, where the production cross sections are from to 10^–3 to 10^–6 mb. The corresponding emission angle and the kinetic energy for these new neutron-rich nuclei locate at 40°–60° and 100–200 MeV, respectively.

• Research Organization: Argonne National Lab. (ANL), Argonne, IL (United States)
• Sponsoring Organization: USDOE; National Natural Science Foundation of China (NSFC); National Basic Research Program of China; European Commission, Community Research and Development Information Service (CORDIS), Seventh Framework Programme (FP7)
• Grant/Contract Number: SC0009971; AC02-06CH11357
• OSTI ID: 1410592
• Alternate ID(s): OSTI ID: 1466381
• Journal Information: Physics Letters B, Journal Name: Physics Letters B Vol. 776 Journal Issue: C; ISSN 0370-2693
• Publisher: Elsevier
• Country of Publication: Netherlands
• Language: English

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74 ATOMIC AND MOLECULAR PHYSICS