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., May 27, 2010, at 3:00 p.m. (refreshments at 2:40 p.m.)

Applications of Random Matrix Theory: Parity Violation and Missing Level Corrections

G. E. Mitchell, North Carolina State University and Triangle Universities Nuclear Laboratory
Building 6008 Conference Room

Random Matrix Theory (RMT) has been connected with Nuclear Physics since the 1950s. A recent review summarizes the present status of RMT in Nuclear Physics[1]. There are numerous practical applications of RMT, many of them connected with neutron resonances. One interesting application, to parity violation in the compound nucleus[2], enabled the determination of the weak parity violating matrix element without knowing the details of the wave functions. Another application, to missing level corrections in neutron resonances[3], provided several new methods of determining the missing level fraction without resorting to the standard Porter-Thomas approach.
[1] H. A. Weidenmüller and G. E. Mitchell, Rev. Mod. Phys. 81, 539 (1999).
[2] G. E. Mitchell, J. D. Bowman, H. A. Weidenmüller, Rev. Mod. Phys. 71, 445 (1999).
[3] G. E. Mitchell and J. F. Shriner, Jr., INDC(NDS)-056, IAEA Nuclear Data Section, Vienna (1999).