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Publication Information
Title Recent results from the G0 experiment
Abstract We have measured parity violating asymmetries in elastic electron-proton and quasi-elastic electrondeuteron scattering at backward electron angle. These measurements have been done at two momentum transfers : Q2 = 0.22 and 0.63 (GeV/c)2 . Together with our previous forward angle measurement [1], we can extract strange quark contributions to the electromagnetic form factors of the nucleon, as well as nucleon axial form factor coming from the neutral weak interaction. The results indicate a strange quark magnetic contribution close to zero at these Q2 , and a possible non zero strange quark electric contribution for the high Q2 . The ?rst Q2 behavior measurement of the nucleon axial form factor in elastic electron scattering shows a good agreement with radiative corrections calculated at Q2 = 0 and with a dipole form using the axial mass determined in neutrino scattering.
Author(s) Jean-Sebastien Real, Darko Androic, Dave Armstrong, Jacques Arvieux, Stephanie Bailey, Doug Beck, Elizabeth Beise, Jay Benesch, Fatiha Benmokhtar, Louis Bimbot, James Birchall, Peter Bosted, Herbert Breuer, Carissa Capuano, Yu-Chiu Chao, Alexandre Coppens, C. Davis, Colleen Ellis, Gilberto Flores, Gregg Franklin, Christophe Furget, Dave Gaskell, Michael Gericke, Joe Grames, Goulven Guillard, John Hansknecht, Tanja Horn, Mark Kevin Jones, Paul King, Wolfgang Korsch, Serge Kox, L. Lee, J. Liu, Allison Lung, Juliette Mammei, Jeff Martin, Bob McKeown, Anna Micherdzinska, Miha Mihovilovic, H. Mkrtchyan, Mathew Muether, Willem Van Oers, Shelley Page, Vassili Papavassiliou, Stephen Pate, Sarah Phillips, P. Pillot, M. Pitt, Matthew Poelker, Brian Quinn, William Ramsay, Julie Roche, Philip Roos, John Schaub, Tomislav Seva, Neven Simicevic, Greg Smith, Damon Spayde, Marcy Stutzman, Riad Suleiman, Vardan Tadevosyan, Maud Versteegen, Eric Voutier, William Vulcan, S. Wells, Steven Williamson, Stephen Wood
Publication Date April 2010
Document Type Meeting, Proceedings
Primary Institution Thomas Jefferson National Accelerator Facility, Newport News
Affiliation Exp Nuclear Physics / Experimental Halls / Hall C
Funding Source
Proprietary? No
This publication conveys Technical Science Results
Document Numbers
JLAB Number: JLAB-PHY-09-1132 OSTI Number: 985382
LANL Number: Other Number: DOE/OR/23177-1269
Associated with an experiment Yes
Experiment Number(s)
E05-108
E04-115
Associated with EIC No
Supported by Jefferson Lab LDRD Funding No
Meeting / Conference
Meeting Name 19th International IUPAP Conference on Few-Body Problems in Physics
Meeting Date 8/31/2009
Document Subtype Invited Talk (slides)
Proceedings
Title Proceedings of 19th International IUPAP Conference on Few-Body Problems in Physics (EPJ vol. 3)
Editor(s) E. Epelbaum, H.-W. Hammer, U.-G. Meißner
Publisher EPJ Web of Conferences
Refereed Yes
Page Number 03004
Year 2010
Attachments/Datasets/DOI Link
Document(s) (none)
DOI Link
Dataset(s) (none)
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