A novel comparison of Møller and Compton electron-beam polarimeters
| العنوان: | A novel comparison of Møller and Compton electron-beam polarimeters |
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| المؤلفون: | Dipangkar Dutta, William A. Tobias, Amber McCreary, W.D. Ramsay, A. Mkrtchyan, B. S. Cavness, Douglas Storey, Kent Paschke, S. A. Page, C. Vidal, Amrendra Narayan, D. Gaskell, L. A. Dillon-Townes, D. C. Jones, P. Wang, Erik Urban, M. McDonald, J.C. Cornejo, J. R. Hoskins, R. S. Beminiwattha, Vladimir Nelyubin, A. Asaturyan, M. M. Dalton, Wouter Deconinck, S. Zhamkotchyan, E. Ihloff, P. Solvignon, G. Hays, R. T. Jones, P. M. King, S. Kowalski, J. W. Martin, V. Tvaskis, J. A. Magee, A. Micherdzinska, B. Waidyawansa, H. Mkrtchyan, L. Lee, Jay Benesch, Leonid Kurchaninov, G. D. Cates |
| المساهمون: | Massachusetts Institute of Technology. Department of Physics, Kowalski, Stanley B |
| المصدر: | Physics Letters B, Vol 766, Iss C, Pp 339-344 (2017) Elsevier Physics Letters B |
| بيانات النشر: | Elsevier BV, 2017. |
| سنة النشر: | 2017 |
| مصطلحات موضوعية: | Nuclear and High Energy Physics, Physics - Instrumentation and Detectors, media_common.quotation_subject, Polarimetry, Electron, Electron polarimetry, 01 natural sciences, Asymmetry, Møller polarimeter, Optics, Compton polarimeter, 0103 physical sciences, High current, 010306 general physics, Nuclear Experiment, media_common, Physics, 010308 nuclear & particles physics, business.industry, Astrophysics::Instrumentation and Methods for Astrophysics, Compton scattering, Polarimeter, Polarization (waves), lcsh:QC1-999, Computational physics, Cathode ray, Physics::Accelerator Physics, business, lcsh:Physics, Jefferson Lab |
| الوصف: | We have performed a novel comparison between electron-beam polarimeters based on Møller and Compton scattering. A sequence of electron-beam polarization measurements were performed at low beam currents (< 5μA) during the Q[subscript weak] experiment in Hall-C at Jefferson Lab. These low current measurements were bracketed by the regular high current (180 μA) 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 Møller 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. Keywords: Electron polarimetry, Compton polarimeter, Møller polarimeter, Jefferson Lab United States. Department of Energy (Contract AC05-06OR23177) Natural Sciences and Engineering Research Council of Canada |
| وصف الملف: | application/pdf |
| تدمد: | 0370-2693 |
| DOI: | 10.1016/j.physletb.2017.01.026 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::71319e7ce2db059a3713cf6538c598e6 https://doi.org/10.1016/j.physletb.2017.01.026 |
| Rights: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....71319e7ce2db059a3713cf6538c598e6 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 03702693 |
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| DOI: | 10.1016/j.physletb.2017.01.026 |