Physics of fundamental Symmetries and Interactions - PSI2010

Session

Session We - 3

3 - 3

13 Oct 2010, 14:30

Main Auditorium (WHGA/001) (PSI)

97. EDM Searches and Their Cosmological Implications

Prof. Michael Ramsey-Musolf (U. Wisconsin-Madison)

13/10/2010, 14:30

Searches for permanent electric dipole moments

Oral

New searches for the permanent electric dipole moments of the neutron, atoms, and nuclei are poised to probe CP-violation beyond that of the Standard Model with unprecedented sensitivity. This CP-violation may provide one of the keys to explaining the cosmic baryon asymmetry . I discuss the theoretical interpretation of EDM searches and their possible implications for the origin of matter.

70. The CryoEDM Experiment at ILL

Prof. Philip Harris (University of Sussex)

13/10/2010, 15:00

Searches for permanent electric dipole moments

Oral

The CryoEDM collaboration is building an experiment to measure the electric dipole moment (EDM) of the neutron with a precision, initially, of ~3 x 10^{-27} e.cm, and ultimately up to an order of magnitude beyond that. The experiment relies upon superthermal production of ultracold neutrons within a volume of superfluid helium, held at a temperature of 0.5 K. The Ramsey technique of...

81. Recent Results from a Search for the Permanent Electric Dipole Moment of Mercury Atoms

Prof. Blayne Heckel (University of Washington)

13/10/2010, 15:30

Searches for permanent electric dipole moments

Oral

Observation of a nonzero EDM would imply CP violation beyond the Standard Model. Additional sources of CP violation are expected to help explain the matter-antimatter asymmetry observed in our universe and naturally arise in extensions to the standard model such as supersymmetry. Our group has recently reported a new upper limit: |d_{Hg}| < 3.1 x 10^{-29} e-cm for the EDM of 199Hg. The...

27. Measuring the electron electric dipole moment in YbF

Dr Ben Sauer (Imperial College London)

13/10/2010, 16:00

Low energy precision tests of the Standard Model

Oral

Certain paramagnetic molecules strongly amplify the electric dipole moment (edm) of the electron. There are now a number of molecular edm experiments underway worldwide. At the present, the experiment at Imperial College London using a molecular beam of YbF is the most advanced. Our current data set has a statistical uncertainty which is below the existing limit on the electron edm. I will...