Nuclear Reaction Group
Brief Introduction
The Nuclear Reaction Group is currently focusing on multi-nucleon transfer reactions, astrophysical nuclear reactions and the decay of exotic nuclei, using the Heavy Ion Research Facility in Lanzhou (HIRFL)，High Intensity heavy-ion Accelerator Facility (HIAF) and other facilities around the world.
The multi-nucleon transfer reaction: we are planning to design and construct the spectrometer for the neutron-rich superheavy nuclide produced by multi-nucleon transfer reactions of the heavy actinide nuclei, with the aim to explore “the island of stability “at HIAF in the near future.
The astrophysical nuclear reaction: we aim at the understanding of the crucial reactions that occur in explosive scenarios, such as novae and X-ray bursts. We have considerable experience in the construction of silicon detector arrays, in the use of gas targets, and in experiments with radioactive beams relevant to astrophysics. Our theoretical research focuses on the nucleosynthesis processes occurred in the different astrophysical scenarios, such as Big Bang and explosive binary systems, which are used to explain the origin of elements and the energy generation in stars by nuclear physics.
The decay of exotic nuclei: State-of-the-art silicon detector arrays developed by our team were used to measure the decay spectroscopy of exotic nuclei around the proton drip line at HIRFL. This provides opportunities to study the fundamental properties of exotic nuclei, the open quantum system and isospin–symmetry breaking.
Currently, 9 staff members, 3 postdoctoral fellows, 9 PhD students, and 8 master's students are working at the group. Our group is funded by the Strategic Priority Research Program of the Chinese Academy of Science and the National Natural Science Foundation of China, et al. Our research results have been published in PRL, PLB, ApJ, etc.
Research Fields
1. Physics study
1) The multi-nucleon transfer reactions;
2) The astrophysical nuclear reactions;
3) The decay of exotic nuclei.
2. Development of the devices
1) The development of the nuclear spectrometers, such as the spectrometer for neutron-rich superheavy nuclide, involving the vacuum technique, cryogenic technique and radio-frequency technique;
2) The development and testing of various types of detectors, such as double-sided silicon strip detectors and HPGe detectors.
Achievements
1. New Thermonuclear Rate of 7Li(d,n)24He relevant to the Cosmological Lithium Problem, The Astrophysical Journal, 920 (2021) 145.
2. Production of neutron-rich N=126 nuclei in multinucleon transfer reactions: Comparison between 136Xe, Physics Letter B 815 (2021) 136101.
3. Advancement of Photospheric Radius Expansion and Clocked Type-I X-Ray Burst Models with the New 22Mg(a,p)25Al Reaction Rate Determined at the Gamow Energy, Physical Review Letters, 127 (2021) 172701.
4. β-delayed two-proton decay of 27S at the proton-drip line. Physical Review C 103 (2021) L061301.
5. Large Isospin Asymmetry in 22Si/22O Mirror Gamow–Teller Transitions Reveals the Halo Structure of 22Al. Physical Review Letters 125 (2020) 192503.
6. Experimentally well-constrained masses of 27P and 27S: Implications for studies of explosive binary systems, Physics Letter B 892 (2020) 135213.
7. Astrophysical S(E) for the 9Be(p, α)6Li and 9Be(p, d)8Be Reactions by Direct Measurement, The Astrophysical Journal, 893 (2020) 126.
8. Fine structure in the a decay of 223U, Physics Letter B 800 (2020) 135096.
9. New short-lived isotope 223Np and the absence of the Z = 92 subshell closure near N = 126, Physics Letter B 771 (2017) 303.
Photos
Contact
XU Xinxing
Phone: +86-0931-4969167
Email: xinxing@impcas.ac.cn
Mailing Address: 509 Nanchang Road, Lanzhou, 730000, China
Copyright © Institute of Modern Physics, Chinese Academy of SciencesAddress：509 Nanchang Rd., Lanzhou 730000, ChinaEmail: office@impcas.ac.cn
陇ICP备2023003351号-1 
甘公网安备 62010202000713号
