Technical supplement to “Polarization transfer observables in elastic electron-proton scattering at Q2=2.5,5.2,6.8 and 8.5GeV2

A. J.R. Puckett, E. J. Brash, M. K. Jones, W. Luo, M. Meziane, L. Pentchev, C. F. Perdrisat, V. Punjabi, F. R. Wesselmann, A. Afanasev, A. Ahmidouch, I. Albayrak, K. A. Aniol, J. Arrington, A. Asaturyan, H. Baghdasaryan, F. Benmokhtar, W. Bertozzi, L. Bimbot, P. BostedW. Boeglin, C. Butuceanu, P. Carter, S. Chernenko, M. E. Christy, J. C. Cornejo, S. Covrig, S. Danagoulian, A. Daniel, A. Davidenko, D. Day, S. Dhamija, D. Dutta, R. Ent, S. Frullani, H. Fenker, E. Frlez, F. Garibaldi, D. Gaskell, S. Gilad, R. Gilman, Y. Goncharenko, K. Hafidi, D. Hamilton, D. W. Higinbotham, W. Hinton, T. Horn, B. Hu, J. Huang, G. M. Huber, E. Jensen, C. Keppel, M. Khandaker, P. King, D. Kirillov, M. Kohl, V. Kravtsov, G. Kumbartzki, Y. Li, V. Mamyan, D. J. Margaziotis, A. Marsh, Y. Matulenko, J. Maxwell, G. Mbianda, D. Meekins, Y. Melnik, J. Miller, A. Mkrtchyan, H. Mkrtchyan, B. Moffit, O. Moreno, J. Mulholland, A. Narayan, S. Nedev, Nuruzzaman, E. Piasetzky, W. Pierce, N. M. Piskunov, Y. Prok, R. D. Ransome, D. S. Razin, P. Reimer, J. Reinhold, O. Rondon, M. Shabestari, A. Shahinyan, K. Shestermanov, S. Širca, I. Sitnik, L. Smykov, G. Smith, L. Solovyev, P. Solvignon, R. Subedi, E. Tomasi-Gustafsson, A. Vasiliev, M. Veilleux, B. B. Wojtsekhowski, S. Wood, Z. Ye, Y. Zanevsky, X. Zhang, Y. Zhang, X. Zheng, L. Zhu

Research output: Contribution to journalArticlepeer-review

Abstract

The GEp-III and GEp-2γ experiments, carried out in Jefferson Lab's Hall C from 2007–2008, consisted of measurements of polarization transfer in elastic electron–proton scattering at momentum transfers of Q2=2.5,5.2,6.8, and 8.54 GeV 2. These measurements were carried out to improve knowledge of the proton electromagnetic form factor ratio R=μpGE p∕GM p at large values of Q2 and to search for effects beyond the Born approximation in polarization transfer observables at Q2=2.5GeV2. The final results of both experiments were reported in a recent archival publication. A full reanalysis of the data from both experiments was carried out in order to reduce the systematic and, for the GEp-2γ experiment, statistical uncertainties. This technical note provides additional details of the final analysis omitted from the main publication, including the final evaluation of the systematic uncertainties.

Original languageEnglish (US)
Pages (from-to)54-78
Number of pages25
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume910
DOIs
StatePublished - Dec 1 2018

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Instrumentation

Keywords

  • Electromagnetic calorimeter
  • Magnetic spectrometer
  • Polarization transfer method
  • Proton form factors
  • Proton polarimeter
  • Spin transport

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