[Jlab-seminars] Physics Seminar Announcement

[Luci Collins]

*Physics Seminar
Wednesday, January 21, 2010
11:00AM
CEBAF Center F113
Cookies & Coffee at 10:45AM

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*"Probing the Hadronic Weak Interaction Through a Measurement of Parity 
Violation in Polarized Cold Neutron Capture"

Nadia Fomin for the NPDGamma Collaboration
University of Tennessee*

The NPDGamma experiment aims to measure the correlation between the 
neutron spin and the direction of the emitted photon in neutron-proton 
capture. A parity violating asymmetry from this process can be directly 
related to the strength of the hadronic weak interaction between 
nucleons. The first phase of the experiment was completed in 2006 at 
LANSCE. The methodology will be discussed and preliminary results will 
be presented. The next run will start in early 2010 at the SNS at ORNL 
with several improvements, which will be discussed. The upcoming run 
will yield a measurement with a projected statistical error 1x10-8. This 
will finally allow the result to be compared with theoretical predictions.




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