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The G0 experiment: Apparatus for parity-violating electron scattering measurements at forward and backward angles

  • D. Androić
  • , D. S. Armstrong
  • , J. Arvieux
  • , R. Asaturyan
  • , T. D. Averett
  • , S. L. Bailey
  • , G. Batigne
  • , D. H. Beck
  • , E. J. Beise
  • , J. Benesch
  • , F. Benmokhtar
  • , L. Bimbot
  • , J. Birchall
  • , A. Biselli
  • , P. Bosted
  • , H. Breuer
  • , P. Brindza
  • , C. L. Capuano
  • , R. D. Carlini
  • , R. Carr
  • N. Chant, Y. C. Chao, R. Clark, A. Coppens, S. D. Covrig, A. Cowley, D. Dale, C. A. Davis, C. Ellis, W. R. Falk, H. Fenker, J. M. Finn, T. Forest, G. Franklin, R. Frascaria, C. Furget, D. Gaskell, M. T.W. Gericke, J. Grames, K. A. Griffioen, K. Grimm, G. Guillard, B. Guillon, H. Guler, K. Gustafsson, L. Hannelius, J. Hansknecht, R. D. Hasty, A. M. Hawthorne Allen, T. Horn, T. M. Ito, K. Johnston, M. Jones, P. Kammel, R. Kazimi, P. M. King, A. Kolarkar, E. Korkmaz, W. Korsch, S. Kox, J. Kuhn, J. Lachniet, R. Laszewski, L. Lee, J. Lenoble, E. Liatard, J. Liu, A. Lung, G. A. MacLachlan, J. Mammei, D. Marchand, J. W. Martin, D. J. MacK, K. W. McFarlane, D. W. McKee, R. D. McKeown, F. Merchez, M. Mihovilovic, A. Micherdzinska, H. Mkrtchyan, B. Moffit, M. Morlet, M. Muether, J. Musson, K. Nakahara, R. Neveling, S. Niccolai, D. Nilsson, S. Ong, S. A. Page, V. Papavassiliou, S. F. Pate, S. K. Phillips, P. Pillot, M. L. Pitt, M. Poelker, T. A. Porcelli, G. Quéméner, B. P. Quinn, W. D. Ramsay, A. W. Rauf, J. S. Real, T. Ries, J. Roche, P. Roos, G. A. Rutledge, J. Schaub, J. Secrest, T. Seva, N. Simicevic, G. R. Smith, D. T. Spayde, S. Stepanyan, M. Stutzman, R. Suleiman, V. Tadevosyan, R. Tieulent, J. Van De Wiele, W. T.H. Van Oers, M. Versteegen, E. Voutier, W. F. Vulcan, S. P. Wells, G. Warren, S. E. Williamson, R. J. Woo, S. A. Wood, C. Yan, J. Yun, V. Zeps
  • University of Zagreb
  • College of William and Mary
  • Institut de Physique Nucleaire d'Orsay
  • A. Alikhanian Yerevan Institute of Physics
  • Stanford University
  • Université Joseph Fourier Grenoble 1
  • Laboratoire Subatech
  • University of Illinois at Urbana-Champaign
  • University of Maryland, College Park
  • Thomas Jefferson National Accelerator Facility
  • Carnegie Mellon University
  • Christopher Newport University
  • University of Manitoba
  • Fairfield University
  • California Institute of Technology
  • TRIUMF
  • University of Pittsburgh
  • Carleton University
  • Stellenbosch University
  • University of Kentucky
  • Idaho State University
  • Louisiana Tech University
  • LPC
  • LPC-Caen
  • Laboratoire Leprince-Ringuet
  • National Board of Patents and Registration
  • Illinois Emergency Management Agency
  • Virginia Tech
  • Concord University
  • Los Alamos National Laboratory
  • University of Washington
  • Ohio University
  • Boston University
  • University of Northern British Columbia
  • Greens Farms Academy
  • Shanghai Jiao Tong University
  • New Mexico State University
  • The George Washington University
  • University of Massachusetts, Amherst
  • University of Winnipeg
  • Hampton University
  • Kansas State University
  • J. Stefan Institute
  • Fermilab
  • Visma Spcs AB
  • University of New Hampshire
  • Commission on Science and Technology for Sustainable Development in the South
  • SAIC
  • Valparaiso University
  • Armstrong Atlantic State University
  • Hendrix College
  • IPNL
  • Université de Bordeaux
  • Bluegrass Community and Technical College

Research output: Contribution to journalArticlepeer-review

21 Scopus citations

Abstract

In the G0 experiment, performed at Jefferson Lab, the parity-violating elastic scattering of electrons from protons and quasi-elastic scattering from deuterons is measured in order to determine the neutral weak currents of the nucleon. Asymmetries as small as 1 part-per-million in the scattering of a polarized electron beam are determined using a dedicated apparatus. It consists of specialized beam monitoring and control systems, a cryogenic hydrogen (or deuterium) target, and a superconducting, toroidal magnetic spectrometer equipped with plastic scintillation and aerogel Cherenkov detectors, as well as fast readout electronics for the measurement of individual events. The overall design and performance of this experimental system is discussed.

Original languageEnglish
Pages (from-to)59-86
Number of pages28
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume646
Issue number1
DOIs
StatePublished - Aug 1 2011

Scopus Subject Areas

  • Nuclear and High Energy Physics
  • Instrumentation

Keywords

  • Electron scattering
  • Liquid hydrogen target
  • Magnetic spectrometer
  • Parity-violation
  • Polarized electron beam

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