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., December 08, 2011, at 3:00 p.m. (refreshments at 2:40 p.m.)

Atomic Parity Violation

Marianna Safronova, University of Delaware, Newark, DE
Building 6008 Conference Room

The goals of high-precision atomic parity violation (APV) studies are to search for new physics beyond the standard model of the electroweak interaction by accurate determination of the weak charge and to probe parity violation in the nucleus. Interpretation of all past APV experiments and some of the ongoing ones requires theoretical calculations. I will discuss the current status and future prospects of atomic parity violation studies and the implications for searches for physics beyond the standard model. The recent advances in theoretical methodology that allowed reducing theoretical uncertainty in the analysis of the cesium experiment are described. I will also discuss recent accurate calculation of the nuclear spin-dependent parity-violating amplitude in Cs. New results still lead to the discrepancy between constraints on weak nucleon-nucleon coupling obtained from the cesium anapole moment and those obtained from other nuclear PV measurements.