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A Measurement of Parity-Violating Asymmetries in the G0 Experiment in Forward Mode


Covrig, Silviu Doru (2005) A Measurement of Parity-Violating Asymmetries in the G0 Experiment in Forward Mode. Dissertation (Ph.D.), California Institute of Technology. doi:10.7907/K48K-KB02.


The G0 (or G⁰) experiment in Hall C at Jefferson Lab measures the parity-violating asymmetry in elastic electron scattering off hydrogen and quasielastic electron scattering off deuterium in the Q2 range from 0.1 to 1 (GeV)2 in both forward and backward running modes by using a longitudinally polarized electron beam on unpolarized liquid targets. By measuring three independent asymmetries, one in forward running mode off liquid hydrogen and two in backward running mode, one off liquid hydrogen and one off liquid deuterium, the experiment aims to perform for the first time a complete separation and mapping of the strange vector form factors of the nucleon (GMs, GEs) and the isovector axial form factor (GAs(T=1)) in three Q2 bins over the Q2 range from 0.1 to 1 (GeV/c)2. To complete the physics program in both forward and backward modes it will take about five years. To accomplish the forward running mode program some 100 C of data are needed. This thesis is based on 9 C of physics data taken during the first checkout of the G⁰ apparatus during October 2002 - January 2003.

Item Type:Thesis (Dissertation (Ph.D.))
Subject Keywords:asymmetry; liquid hydrogen target; parity violation
Degree Grantor:California Institute of Technology
Division:Physics, Mathematics and Astronomy
Major Option:Physics
Thesis Availability:Public (worldwide access)
Research Advisor(s):
  • McKeown, Robert D.
Thesis Committee:
  • McKeown, Robert D. (chair)
  • Filippone, Bradley W.
  • Porter, Frank C.
  • Wise, Mark B.
Defense Date:28 September 2004
Non-Caltech Author Email:sdc (AT)
Record Number:CaltechETD:etd-12222004-075215
Persistent URL:
Default Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:5113
Deposited By: Imported from ETD-db
Deposited On:29 Dec 2004
Last Modified:21 May 2020 23:34

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