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Thursday, February 07

The No Core Shell Model: The Past, Present and Future

Bruce R. Barrett,, University of Arizona , Tucson
Physics Division Seminar
3:00 PM — 4:00 PM, Building 6000, Large Conference Room
Contact: Alfredo Galindo-Uribarri (uribarri@ornl.gov), 865.574.6124

Abstract

The ab initio No Core Shell Model (NCSM) is a microscopic approach for calculating the properties of atomic nuclei using any realistic NN (and NNN) interaction and treating all A nucleons as being active. Since its inception in the 1990s, it has had considerable success not only in explaining the binding and excitation energies and other properties of light atomic nuclei, up to mass A approximately equal to 16, but also in making predictions for properties not yet observed experimentally. The NCSM has emphasized the role of NNN forces in understanding the properties of nuclei and shown the importance of renormalizing all physical operators, when used in truncated model spaces. Considerable work has also been done in extending the NCSM approach to nuclear-reactions for light nuclei. Because of the rapid grown of the model spaces with A, new techniques are being investiaged for extending the NCSM to nuclei beyond the 0p-shell. Depending upon time, three approaches that we are currently studying for extending the NCSM to heavier nuclei will be briefly described.