SAMPLE: Parity Violating Electron Scattering from Hydrogen and Deuterium
E. J. Beise, J. Arrington, D. H. Beck, E. Candell, R. Carr, G. Dodson, K. Dow, F. Duncan, M. Farkhondeh, B. W. Filippone, T. FOrest, H. Gao, W. Korsch, S. Kowalski, A. Lung, R. D. McKeown, R. Mohring, B. A. Mueller, J. Napolitano, M. Pitt, N. Simicevic, E. Tsentalovich, S. Wells
Abstract
Recently, there has been considerable theoretical interest in determining strange quark contributions to hadronic matrix elements. Such matrix elements can be accessed through the nucleon's neutral weak form factors as determined in parity violating electron scattering. The SAMPLE experiment will measure the strange magnetic form factor GMs at low momentum transfer. By combining measurements from hydrogen and deuterium the theoretical uncertainties in the measurement can be greatly reduced and the result will be limited by experimental errors only. A summary of recent progress on the SAMPLE experiment is presented.
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