[Triumf-seminars] TRIUMF Seminar today at 14:00

postmaster at admin.triumf.ca postmaster at admin.triumf.ca
Mon Sep 17 05:00:01 PDT 2007

Date/Time: Mon 2007-09-17 at 14:00

Location:  Auditorium          

Speaker:   Cheng-Pang Liu (Los Alamos National Laboratory)

Title:     Schiff Theorem and the Interpretation of Atomic EDM Measurements

Abstract: Permanent electric dipole moments (EDMs) of physical systems violate both parity (P) and time-reversal (T) symmetries. By CPT invariance, they equivalently point to the much sought-after charge-parity (CP) violation, which is an important feature of understanding the baryon asymmetry of the universe and numerous extensions of the Standard Model. Active EDM searches cover a wide variety of systems including neutron, nuclei, atoms, molecules, and solids, with most of them being charge neutral. In this talk, I will revisit the famous Schiff theorem, which accounts for the re-adjustment of charge constituents in a neutral system to screen out the detecting electric field hence reduces the EDM response, and then discuss the issues pertaining to the interpretation of atomic EDM measurements.

Host: Achim Schwenk
Please note the unusual venue, the main office building boardroom.


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