Design and performance of the spin asymmetries of the nucleon experiment

J. D. Maxwell, W. R. Armstrong, S. Choi, M. K. Jones, H. Kang, A. Liyanage, Z. E. Meziani, J. Mulholland, L. Ndukum, O. A. Rondón, A. Ahmidouch, I. Albayrak, A. Asaturyan, O. Ates, H. Baghdasaryan, W. Boeglin, P. Bosted, E. Brash, J. Brock, C. ButuceanuM. Bychkov, C. Carlin, P. Carter, C. Chen, J. P. Chen, M. E. Christy, S. Covrig, D. Crabb, S. Danagoulian, A. Daniel, A. M. Davidenko, B. Davis, D. Day, W. Deconinck, A. Deur, J. Dunne, D. Dutta, L. El Fassi, M. Elaasar, C. Ellis, R. Ent, D. Flay, E. Frlez, D. Gaskell, O. Geagla, J. German, R. Gilman, T. Gogami, J. Gomez, Y. M. Goncharenko, O. Hashimoto, D. W. Higinbotham, T. Horn, G. M. Huber, M. Jones, N. Kalantarians, H. K. Kang, D. Kawama, C. Keith, C. Keppel, M. Khandaker, Y. Kim, P. M. King, M. Kohl, K. Kovacs, V. Kubarovsky, Y. Li, N. Liyanage, W. Luo, V. Mamyan, P. Markowitz, T. Maruta, D. Meekins, Y. M. Melnik, A. Mkrtchyan, H. Mkrtchyan, V. V. Mochalov, P. Monaghan, A. Narayan, S. N. Nakamura, Nuruzzaman, L. Pentchev, D. Pocanic, M. Posik, A. Puckett, X. Qiu, J. Reinhold, S. Riordan, J. Roche, B. Sawatzky, M. Shabestari, K. Slifer, G. Smith, L. Soloviev, P. Solvignon, V. Tadevosyan, L. Tang, A. N. Vasiliev, M. Veilleux, T. Walton, F. Wesselmann, S. A. Wood, H. Yao, Z. Ye, L. Zhu

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

The Spin Asymmetries of the Nucleon Experiment (SANE) performed inclusive, double-polarized electron scattering measurements of the proton at the Continuous Electron Beam Accelerator Facility at Jefferson Lab. A novel detector array observed scattered electrons of four-momentum transfer 2.5<Q2<6.5GeV2 and Bjorken scaling 0.3<x<0.8 from initial beam energies of 4.7 and 5.9 GeV. Employing a polarized proton target whose magnetic field direction could be rotated with respect to the incident electron beam, both parallel and near perpendicular spin asymmetries were measured, allowing model-independent access to transverse polarization observables A1, A2, g1, g2 and moment d2 of the proton. This document summarizes the operation and performance of the polarized target, polarized electron beam, and novel detector systems used during the course of the experiment, and describes analysis techniques utilized to access the physics observables of interest.

Original languageEnglish
Pages (from-to)145-159
Number of pages15
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume885
DOIs
Publication statusPublished - 2018 Mar 21

Keywords

  • Deep inelastic scattering
  • Electron detector
  • Polarized target
  • Spin asymmetries

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Instrumentation

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    Maxwell, J. D., Armstrong, W. R., Choi, S., Jones, M. K., Kang, H., Liyanage, A., Meziani, Z. E., Mulholland, J., Ndukum, L., Rondón, O. A., Ahmidouch, A., Albayrak, I., Asaturyan, A., Ates, O., Baghdasaryan, H., Boeglin, W., Bosted, P., Brash, E., Brock, J., ... Zhu, L. (2018). Design and performance of the spin asymmetries of the nucleon experiment. Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 885, 145-159. https://doi.org/10.1016/j.nima.2017.12.008