[Jlab-seminars] Physics Seminar Announcement

[Luci Collins]

*Physics Seminar
Fri.,Feb. 1**, 2013
11:00 AM
CEBAF Center AUD.
Cookies and Coffee 10:45A*M

*Yannis Semertzidis
Brookhaven National Lab*

*"A Sensitive Proton EDM Experiment in an All-electric Storage Ring"*

Sensitive electric dipole moment (EDM) experiments can decisively test the Electro-Weak Baryogenesis models that can explain the matter antimatter asymmetry of our universe.  A proposal for an electric storage ring to probe the proton EDM with 10^-29  e-cm sensitivity has been submitted to DOE NP.  It improves the hadronic EDM prospects by one to two orders of magnitude.  With a future upgrade, implementing stochastic cooling, it can reach a statistical sensitivity of 10^-30  e-cm.  The ring radius of 40 m, with an assumed electric field of 10 MV/m for 3 cm plate separation, would make it the largest diameter electric storage ring in the world.  Recent electric field measurements with large grain Nb plates accomplished at JLab may help reduce the ring diameter and thus the cost of the ring.






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