Production of neutron-rich isotopes for 𝑍 ≥ 98 in the 238U + 248Cm reaction

Ocal, S. E.; Yilmaz, O.; Arik, M.; Ayik, S.; Umar, A. S.

doi:10.1103/PhysRevC.111.054613

Production of neutron-rich isotopes for 𝑍 ≥ 98 in the ²³⁸U + ²⁴⁸Cm reaction

Journal Article · Mon May 12 00:00:00 EDT 2025 · Physical Review. C

DOI:https://doi.org/10.1103/PhysRevC.111.054613· OSTI ID:2568299

^[1]; Yilmaz, O. ^[1]; Arik, M. ^[2]; ^[3]; ^[2]

Middle East Technical University, Ankara (Turkey)
Vanderbilt University, Nashville, TN (United States)
Tennessee Technological University, Cookeville, TN (United States)

Multinucleon transfer (MNT) reactions in actinide systems are a promising method to synthesize transuranium neutron-rich elements. Appropriate theoretical approaches are needed to understand the mechanisms behind MNT. We employ a microscopic approach to calculate neutron-rich isotope production in the reaction ²³⁸U + ²⁴⁸Cm system. Here, the stochastic mean-field (SMF) approach is used to calculate the primary cross sections in MNT reactions based on the quasifission and inverse quasifission processes, and a statistical de-excitation model with GEMINI₊₊ code to calculate the secondary fragment cross sections. The calculated cross sections using SMF and GEMINI₊₊ explain available experimental results for the ²³⁸U + ²⁴⁸Cm system at 𝐸_c.m. = 898.7 MeV energy. This shows the effectiveness and applicability of the quantal diffusion approach, based on the SMF theory, in heavy-ion collisions. Production of transuranium neutron-rich elements with a proton number up to 𝑍=101 is obtained with sizable cross sections. Theoretical results calculated for the 𝑍=102–105 region, for which there are no experimental data, show that the cross-section values would be lower than the microbarn level. SMF theory does not contain any adjustable parameters other than the standard parameters of the energy density functional used in the TDHF theory and is an important approach for the microscopic understanding of reaction mechanisms.

View Accepted Manuscript (DOE)

Research Organization:: Vanderbilt University, Nashville, TN (United States)

Sponsoring Organization:: TUBITAK; USDOE

Grant/Contract Number:: SC0013847

OSTI ID:: 2568299

Alternate ID(s):: OSTI ID: 2565770

Journal Information:: Physical Review. C, Journal Name: Physical Review. C Journal Issue: 5 Vol. 111; ISSN 2469-9985; ISSN 2469-9993

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

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Production of neutron-rich isotopes for 𝑍 ≥ 98 in the 238U + 248Cm reaction

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Production of neutron-rich isotopes for 𝑍 ≥ 98 in the ²³⁸U + ²⁴⁸Cm reaction