Oak Ridge National Laboratory

Physics Division

Physics Division Seminars

Physics Division Seminars bring us speakers on a variety of physics related subjects. Usually these are held in the Building 6008 large Conference Room, at 3:00 pm on the chosen day, but times and locations may vary. For more information, contact our seminar chairman,

Alfredo Galindo-Uribarri
Tel (Office): (865) 574-6124  (FAX): (865) 574-1268

Thu., November 09, 2017, at 3:00 PM - 4:00 PM (refreshments served at 2:40 PM)

Nuclear Symmetry Energy from Nucleus to Neutron Star

Betty Tsang, NSCL/FRIB, Michigan State University, East Lansing, MI
Bldg. 6008 Large Conference Room

The symmetry energy term in the nuclear equation of state affects many aspects of nuclear physics and astrophysics, from the structure of exotic nuclei to properties of neutron stars. A decade ago, Brown showed that many different Skyrme effective interactions can fit the binding energies of Sn nuclei between 100Sn and 132Sn, yet predict very different density dependences for the symmetry energy term in the nuclear equation of state. Substantial progress has been achieved in recent years in constraining the density dependence of nuclear symmetry energy at and below the saturation density with a wide range of experimental measurements. In the talk, I will review current experimental constraints on the symmetry energy from different experiments and the implications of recent observations of massive neutron masses and radius on nuclear equation of state. I will also discuss some of the compelling opportunities for constraints at supra-saturation densities that may be expected with recent experiments.

Contact: Alfredo Galindo-Uribarri, (865) 574-6124