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  • Letter
  • Open Access

Optimal detection angles for producing N=126 neutron-rich isotones in multinucleon transfer reactions

Zehong Liao1, Long Zhu1,*, Zepeng Gao1, Jun Su1, and Cheng Li2

  • 1Sino-French Institute of Nuclear Engineering and Technology, Sun Yat-sen University, Zhuhai 519082, China
  • 2College of Physics and Technology and Guangxi Key Laboratory of Nuclear Physics and Technology, Guangxi Normal University, Guilin 541004, China

  • *Corresponding author: zhulong@mail.sysu.edu.cn
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Phys. Rev. Research 5, L022021 – Published 2 May, 2023

DOI: https://doi.org/10.1103/PhysRevResearch.5.L022021

Abstract

The challenge of isotopic identification over a wide angular distribution has limited the measurement of neutron-rich nuclei produced via the multinucleon transfer (MNT) process. To investigate the optimal detection angles for the N=126 isotones, we propose a method to construct the reasonable scattering angles of the MNT products in the dinuclear system model (DNS-sysu). The reactions Xe136,144+Pb208 are investigated. The calculated results are in rather good agreement with the available experimental data in the reaction Xe136+Pb208. The entrance channel effects on the scattering angle are investigated. It is found that the scattering angular distribution strongly depends on the isospin and the impact parameter of the collision system. The optimal angle ranges for detecting N=126 neutron-rich nuclides Pt204, Ir203, Os202, and Re201 in the Xe136+Pb208 reaction at the incident energy Ec.m.=526MeV are predicted. Our results suggest that the angle range of 45∘⩽θlab⩽50∘ is most favorable for detecting unknown N=126 isotones. Given the current difficulties in separating and identifying experimental MNT fragments, the results of this Letter could provide significant contributions to future experiments.

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Phys. Rev. Research 5, L022021– Published 2 May, 2023
  • Received 6 March 2023
  • Accepted 13 April 2023
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Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.

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