Latest News----Institute of Modern Physics

Scientists Propose an Optimized Point-Coupling Interaction for Covariant Density Functional Theory

Researchers proposed an optimized point-coupling interaction for the relativistic Hartree-Bogoliubov framework to quantify the nuclear bulk properties.New experiments based on the recent advancements in radioactive ion beams and detectors reveal a wealth of structural phenomena in exotic nuclei. Having theoretical nuclear models capable of descri...

| 06 06, 2023

Scientists Observe Hypernuclei Collective Flow in Heavy-ion Collisions

Researchers have observed the collective flow of hypernuclei in heavy-ion collisions for the first time. This achievement offers a new direction for studying hyperon-nucleon interactions in dense nuclear matter environments.
　　Figure 1. Neutron stars are compact objects formed when massive stars collapse at the end of their lives. Hyperonuclei collective flow in high-energy heavy ion collisions can be used to extrac...

| 29 05, 2023

Precision Mass Measurements Reveal Importance of Three-Nucleon Force in Modeling Atomic Nuclei

Using the new mass data, researchers investigated the proton-neutron interactions in the nuclei and discovered the bifurcation of the interaction, revealing the impact of three-nucleon force on modeling self-conjugate nuclei.
　　Researchers at the Institute of Modern Physics (IMP), Chinese Academy of Sciences (CAS) and their collaborators have accurately measured masses of a series of nuclei. Using the new mass data, ...

| 26 05, 2023

Precision Mass Measurements of Nuclei Reveal Properties of Neutron Star

Researchers have measured the masses of several key nuclei with high-precision by employing a state-of-the-art storage-ring mass spectrometry technique.
　　Figure. The detector system of nuclear mass spectrometer based on the Cooling Storage Ring (CSR) in Lanzhou. (Image from IMP)
　　Researchers at the Institute of Modern Physics (IMP) of the Ch...

| 04 05, 2023

Researchers Fabricate Mechanical Metamaterials with Ultra-high Energy Absorption Capacity

Chinese researchers lately have successfully fabricated mechanical metamaterials with ultra-high energy absorption capacity using the ion track technology. The results were published in Nature Communications as Editors' Highlights.
　　Fig. 1 The SEM image of a FIB-milled quasi-BCC beam nanolattice. (Image from IMP)
　　Chinese researchers have successfully fabricated mechanical metamaterials with ultra-high energy absorptio...

| 21 04, 2023

Physicists Observe Global Spin Alignment in Heavy-Ion Collisions

Physicists from STAR Collaboration have reported the first observation of the global spin alignment signal in heavy-ion collisions. Published in Nature on January 18, the study provides a potential new avenue for understanding the strong interaction at work at the sub-nucleon level.
　　Physicists from STAR Collaboration have reported the first observation of the global spin alignment signal in heavy-ion collisions. Published in Nature on January 18, the study provides a pote...

| 19 01, 2023

Study Lays Foundation for Producing Germanium-68/gallium-68 Generator

Researchers at IMP have conducted a study on the separation route of germanium-68 and successfully prepared the germanium-68/gallium-68 generator.
　　Researchers at the Institute of Modern Physics (IMP) of the Chinese Academy of Sciences (CAS) have conducted a study on the separation route of germanium-68 and successfully prepared the germa...

| 26 12, 2022

Physicists Discover New Transfermium Isotope Lawrencium-251

Physicists have recently synthesized a new transfermium isotope lawrencium-251 and studied the α decay of lawrencium-253 in more detail. This is the first new lawrencium isotope synthesized directly over the past two decades.
　　Physicists have recently synthesized a new transfermium isotope lawrencium-251 and studied the α decay of lawrencium-253 in more detail. This is the first new lawrencium isotope synthesized d...

| 08 12, 2022

Researchers Test High-order QED Effects with Many-electron Highly Charged Ions

Researchers have performed the precision DR spectroscopy measurement with fluorine-like nickel ions by employing the merged-beams method. The measurement builds a bridge which enables comparisons between different theories.
　　The theory of quantum electrodynamics (QED) has achieved great success under weak electromagnetic fields in few-electron quantum systems. QED calculations are sensitive to high-order correctio...

| 08 12, 2022

Study Reveals Relationship Between Helium Behavior and Radiation Damage in MAX Phase Material

Researchers at IMP have recently reveal irradiation damage effects in MAX phase materials under different sequential co-irradiation of heavy ions and helium (He) ions. The results were published in Journal of the European Ceramic Society.
　　Researchers at the Institute of Modern Physics (IMP) of Chinese Academy of Sciences (CAS) have recently reveal irradiation damage effects in MAX phase materials under different sequential co-i...

| 14 11, 2022