Qweak

Location of Research Facility:
Thomas Jefferson National Accelerator Facility
Newport News, VA.

VT Research Personnel:
Dr. Mark Pitt

Degrees Awarded:
Juliette Mammei (Ph.D. 2010)

Description of Research & Links:

The objective of this experiment is to measure the weak charge of the proton, i.e. its coupling strength to the Z boson, to very high accuracy. The weak charge of the proton is predicted by the Standard Model to be Qpw=1-4sin2θW, where sin2θW is a quantity that has already been measured accurately at LEP and SLD. Any deviation of Qweak's measurement of Qpw from the Standard Model prediction will be a signal of new physics.

VT Qweak Group Homepage
http://www.jlab.org/qweak/
http://www.jlab.org/

JLab Aerial
Aerial view of JLab in Newport News, Virginia



Qweak Detector
The design of the Qweak detector



Clean Room

Students testing a drift chamber for the Qweak detector in the Physics Department Clean Room



The Qweak effort at Virginia Tech is, and has been, supported by the Nuclear Physics Program of the NSF, grants PHY-0140059, PHY-0245222, PHY-0320832, PHY-0457163.

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Virginia Polytechnic Institute & State University 
Department of Physics MC 0435, 850 West Campus Drive, Blacksburg, VA 24061 
Phone: (540) 231-6544; Fax: (540) 231-7511