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., March 19, 2009, at 3:00 p.m. (refreshments at 2:40 p.m.)

Probing nuclear extremes with covariant density functional theory

Anatoli Afanasjev, Mississippi State University, Mississippi State, MS
Building 6008 Conference Room

The development of nuclear structure physics is driven by the discovery of new phenomena and the need to understand them. One of such challenges is nuclear hyperdeformation (HD); a state of the nucleus characterized by extreme shape elongation in a third minimum of the potential energy surface. Theoretical investigations of HD at high spin were carried out only in the framework of the macroscopic+microscopic method so far. I present a study within cranked relativistic mean field (CRMF) theory, which covers the $Z=40-58$ part of nuclear chart. It is centered around the following questions: (i) what are the best regions for the observation of nuclear HD, (ii) which features of nuclear many-body system favor or prevent the observation of discrete HD bands, (iii) what are the general features of the HD rotational bands, and (iv) which methods can be used for configuration assignment of the HD bands.