EPJ Web of Conferences (Jan 2017)
Qweak: First Direct Measurement of the Proton’s Weak Charge
- Androic D.,
- Armstrong D.S.,
- Asaturyan A.,
- Averett T.,
- Balewski J.,
- Bartlett K.,
- Beaufait J.,
- Beminiwattha R.S.,
- Benesch J.,
- Benmokhtar F.,
- Birchall J.,
- Carlini R.D.,
- Cates G.D.,
- Cornejo J.C.,
- Covrig S.,
- Dalton M.M.,
- Davis C.A.,
- Deconinck W.,
- Diefenbach J.,
- Dowd J.F.,
- Dunne J.A.,
- Dutta D.,
- Duvall W.S.,
- Elaasar M.,
- Falk W.R.,
- Finn J.M.,
- Forest T.,
- Gal C.,
- Gaskell D.,
- Gericke M.T.W.,
- Grames J.,
- Gray V.M.,
- Grimm K.,
- Guo F.,
- Hoskins J.R.,
- Johnston K.,
- Jones D.,
- Jones M.,
- Jones R.,
- Kargiantoulakis M.,
- King P.M.,
- Korkmaz E.,
- Kowalski S.,
- Leacock J.,
- Leckey J.,
- Lee A.R.,
- Lee J.H.,
- Lee L.,
- MacEwan S.,
- Mack D.,
- Magee J.A.,
- Mahurin R.,
- Mammei J.,
- Martin J.W.,
- McHugh M.J.,
- Meekins D.,
- Mei J.,
- Michaels R.,
- Micherdzinska A.,
- Mkrtchyan A.,
- Mkrtchyan H.,
- Morgan N.,
- Myers K.E.,
- Narayan A.,
- Ndukum L.Z.,
- Nelyubin V.,
- Nuhait H.,
- Nuruzzaman,
- van Oers W.T.H,
- Opper A.K.,
- Page S.A.,
- Pan J.,
- Paschke K.D.,
- Phillips S.K.,
- Pitt M.L.,
- Poelker M.,
- Rajotte J.F.,
- Ramsay W.D.,
- Roche J.,
- Sawatzky B.,
- Seva T.,
- Shabestari M.H.,
- Silwal R.,
- Simicevic N.,
- Smith G.R.,
- Solvignon P.,
- Spayde D.T.,
- Subedi A.,
- Subedi R.,
- Suleiman R.,
- Tadevosyan V.,
- Tobias W.A.,
- Tvaskis V.,
- Waidyawansa B.,
- Wang P.,
- Wells S.P.,
- Wood S.A.,
- Yang S.,
- Young R.D.,
- Zang P.,
- Zhamkochyan S.
Affiliations
- Androic D.
- University of Zagreb
- Armstrong D.S.
- College of William and Mary
- Asaturyan A.
- A. I. Alikhanyan National Science Laboratory (Yerevan Physics Institute)
- Averett T.
- College of William and Mary
- Balewski J.
- Massachusetts Institute of Technology
- Bartlett K.
- College of William and Mary
- Beaufait J.
- Thomas Jefferson National Accelerator Facility
- Beminiwattha R.S.
- Ohio University
- Benesch J.
- Thomas Jefferson National Accelerator Facility
- Benmokhtar F.
- Christopher Newport University
- Birchall J.
- University of Manitoba
- Carlini R.D.
- Cates G.D.
- University of Virginia
- Cornejo J.C.
- College of William and Mary
- Covrig S.
- Thomas Jefferson National Accelerator Facility
- Dalton M.M.
- University of Virginia
- Davis C.A.
- TRIUMF
- Deconinck W.
- College of William and Mary
- Diefenbach J.
- Hampton University
- Dowd J.F.
- College of William and Mary
- Dunne J.A.
- Mississippi State University
- Dutta D.
- Mississippi State University
- Duvall W.S.
- Virginia Polytechnic Institute & State University
- Elaasar M.
- Southern University at New Orleans
- Falk W.R.
- University of Manitoba
- Finn J.M.
- College of William and Mary
- Forest T.
- Gal C.
- University of Virginia
- Gaskell D.
- Thomas Jefferson National Accelerator Facility
- Gericke M.T.W.
- University of Manitoba
- Grames J.
- Thomas Jefferson National Accelerator Facility
- Gray V.M.
- College of William and Mary
- Grimm K.
- Guo F.
- Massachusetts Institute of Technology
- Hoskins J.R.
- College of William and Mary
- Johnston K.
- Louisiana Tech University
- Jones D.
- University of Virginia
- Jones M.
- Thomas Jefferson National Accelerator Facility
- Jones R.
- University of Connecticut
- Kargiantoulakis M.
- University of Virginia
- King P.M.
- Ohio University
- Korkmaz E.
- University of Northern British Columbia
- Kowalski S.
- Massachusetts Institute of Technology
- Leacock J.
- Virginia Polytechnic Institute & State University
- Leckey J.
- College of William and Mary
- Lee A.R.
- Virginia Polytechnic Institute & State University
- Lee J.H.
- Lee L.
- MacEwan S.
- University of Manitoba
- Mack D.
- Thomas Jefferson National Accelerator Facility
- Magee J.A.
- College of William and Mary
- Mahurin R.
- University of Manitoba
- Mammei J.
- Virginia Polytechnic Institute & State University
- Martin J.W.
- University of Winnipeg
- McHugh M.J.
- George Washington University
- Meekins D.
- Thomas Jefferson National Accelerator Facility
- Mei J.
- Thomas Jefferson National Accelerator Facility
- Michaels R.
- Thomas Jefferson National Accelerator Facility
- Micherdzinska A.
- George Washington University
- Mkrtchyan A.
- A. I. Alikhanyan National Science Laboratory (Yerevan Physics Institute)
- Mkrtchyan H.
- A. I. Alikhanyan National Science Laboratory (Yerevan Physics Institute)
- Morgan N.
- Virginia Polytechnic Institute & State University
- Myers K.E.
- George Washington University
- Narayan A.
- Mississippi State University
- Ndukum L.Z.
- Mississippi State University
- Nelyubin V.
- University of Virginia
- Nuhait H.
- Louisiana Tech University
- Nuruzzaman
- van Oers W.T.H
- Opper A.K.
- George Washington University
- Page S.A.
- University of Manitoba
- Pan J.
- University of Manitoba
- Paschke K.D.
- University of Virginia
- Phillips S.K.
- University of New Hampshire
- Pitt M.L.
- Virginia Polytechnic Institute & State University
- Poelker M.
- Thomas Jefferson National Accelerator Facility
- Rajotte J.F.
- Massachusetts Institute of Technology
- Ramsay W.D.
- Roche J.
- Ohio University
- Sawatzky B.
- Thomas Jefferson National Accelerator Facility
- Seva T.
- University of Zagreb
- Shabestari M.H.
- Mississippi State University
- Silwal R.
- University of Virginia
- Simicevic N.
- Louisiana Tech University
- Smith G.R.
- Thomas Jefferson National Accelerator Facility
- Solvignon P.
- Thomas Jefferson National Accelerator Facility
- Spayde D.T.
- Hendrix College
- Subedi A.
- Mississippi State University
- Subedi R.
- George Washington University
- Suleiman R.
- Thomas Jefferson National Accelerator Facility
- Tadevosyan V.
- A. I. Alikhanyan National Science Laboratory (Yerevan Physics Institute)
- Tobias W.A.
- University of Virginia
- Tvaskis V.
- University of Winnipeg
- Waidyawansa B.
- Ohio University
- Wang P.
- University of Manitoba
- Wells S.P.
- Louisiana Tech University
- Wood S.A.
- Thomas Jefferson National Accelerator Facility
- Yang S.
- College of William and Mary
- Young R.D.
- Syracuse University
- Zang P.
- Syracuse University
- Zhamkochyan S.
- A. I. Alikhanyan National Science Laboratory (Yerevan Physics Institute)
- DOI
- https://doi.org/10.1051/epjconf/201713708005
- Journal volume & issue
-
Vol. 137
p. 08005
Abstract
The Qweak experiment, which took data at Jefferson Lab in the period 2010 - 2012, will precisely determine the weak charge of the proton by measuring the parity-violating asymmetry in elastic e-p scattering at 1.1 GeV using a longitudinally polarized electron beam and a liquid hydrogen target at a low momentum transfer of Q2 = 0.025 (GeV/c)2. The weak charge of the proton is predicted by the Standard Model and any significant deviation would indicate physics beyond the Standard Model. The technical challenges and experimental apparatus for measuring the weak charge of the proton will be discussed, as well as the method of extracting the weak charge of the proton. The results from a small subset of the data, that has been published, will also be presented. Furthermore an update will be given of the current status of the data analysis.
