Institute of Modern Physics, Chinese Academy of Sciences

The Institute of Modern Physics (IMP) of the Chinese Academy of Sciences was founded in l957. As of 2013, the institute had 892 staff members including 403 researchers, as well as 284 master's and doctoral students.IMP operates the Heavy Ion Research Facility in Lanzhou (HIRFL), which consists of the Sector Focusing Cyclotron

  • Generalized isobaric multiplet mass equation and its application to the Nolen-Schiffer anomaly

    The Wigner isobaric multiplet mass equation (IMME) is the most fundamental prediction in nuclear physics with the concept of isospin. However, it was deduced based on the Wigner-Eckart theorem with the assumption that all charge-violating interactions can be written as tensors of rank two. This should be generalized for a general situation. In addition, the Nolen-Schiffer anomaly is a longstanding historical problem, which is an anomaly because when all the corrections were taken into account, there remained a consistent underestimate of theCoulomb displacement energy by about a few to ten percent. The Coulomb displacement energy—the difference in binding energy between two members of a ...Learn more

  • Neutron Star Cooling with a Dynamic Stellar Structure

    Neutron star cooling is a hot topic that connects nuclear physics and astrophysics. The observations combined with theory of neutron star (NS) cooling play a crucial role in achieving the intriguing information of the stellar interior, such as the equation of state, composition, and superfluidity of dense matter. The traditional NS cooling theory is based on the assumption that the stellar structure does not change with time. The validity of such a static description has not yet been confirmed. Learn more


CiADS will be the world's first megawatt-class accelerator-driven subcritical system research facility.


In China, the Heavy Ion Research Facility at Lanzhou (HIRFL) is one major national research facility fo...

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