Publications
Publication Information
| Title | A novel comparison of Møller and Compton electron beam polarimeters | ||
| Authors | Joshua Magee, Amrendra Narayan, D. Jones, Rakitha Beminiwattha, Juan Cornejo, Mark Dalton, Wouter Deconinck, Dipangkar Dutta, David Gaskell, Jeffery Martin, Kent Paschke, Vladas Tvaskis, Arshak Asaturyan, Jay Benesch, Gordon Cates, Brandon Cavness, Lawrence Dillon-Townes, Gary Hays, Joshua Hoskins, Ernest Ihloff, Richard Jones, Paul King, Stanley Kowalski, L. Kurchaninov, Lawrence Lee, Amber McCreary, M. McDonald, Anna Micherdzinska, Arthur Mkrtchyan, Hamlet Mkrtchyan, Vladimir Nelyubin, Shelley Page, William Ramsay, Patricia Solvignon-Slifer, D. Storey, William Tobias, Erik Urban, Christopher Vidal, Buddhini Waidyawansa, Peiqing Wang, Simon Zhamkochyan | ||
| JLAB number | JLAB-PHY-16-2333 | ||
| LANL number | arXiv:1610.06083 | ||
| Other number | DOE/OR/23177-3929 | ||
| Document Type(s) | (Journal Article) | ||
| Associated with EIC: | No | ||
| Supported by Jefferson Lab LDRD Funding: | No | ||
| Funding Source: | Nuclear Physics (NP) | ||
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Journal Compiled for Physics Letters B Volume 766 Page(s) 339¿344 Refereed | |||
| Publication Abstract: | We have performed a novel comparison between electron-beam polarimeters based on Moeller and Compton scattering. A sequence of electron beam polarization measurements were performed at low beam currents (< 5 muA) during the Qweak experiment in Hall C at Jefferson Lab. These low current measurements were bracketed by the regular high current (180 muA) operation of the Compton polarimeter. All measurements were found to be consistent within experimental uncertainties of 1% or less, demonstrating that electron polarization does not depend significantly on the beam current. This result lends confidence to the common practice of applying Moeller measurements made at low beam currents to physics experiments performed at higher beam currents. The agreement between two polarimetry techniques based on independent physical processes sets an important benchmark for future precision asymmetry measurements that require sub-1% precision in polarimetry. | ||
| Experiment Numbers: | other | ||
| Group: | Hall C | ||
| Document: | |||
| DOI: | http://dx.doi.org/10.1016/j.physletb.2017.01.026 | ||
| Accepted Manuscript: | |||
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