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Measurement of the Proton's Neutral Weak Magnetic Form Factor

Mueller, B. and Beck, D. H. and Beise, E. J. and Candell, E. and Cardman, L. and Carr, R. and DiBari, R. C. and Dodson, G. and Dow, K. and Duncan, F. and Farkhondeh, M. and Filippone, B. W. and Forest, T. and Gao, H. and Korsch, W. and Kowalski, S. and Lung, A. and McKeown, R. D. and Mohring, R. and Napolitano, J. and Nilsson, D. and Pitt, M. and Simicevic, N. and Terburg, B. and Wells, S. P. and SAMPLE, Collaboration (1997) Measurement of the Proton's Neutral Weak Magnetic Form Factor. Physical Review Letters, 78 (20). pp. 3824-3827. ISSN 0031-9007. http://resolver.caltech.edu/CaltechAUTHORS:MUEprl97

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Abstract

We report the first measurement of the parity-violating asymmetry in elastic electron scattering from the proton. The asymmetry depends on the neutral weak magnetic form factor of the proton which contains new information on the contribution of strange quark-antiquark pairs to the magnetic moment of the proton. We obtain the value GMZ = 0.34±0.09±0.04±0.05 n.m. at Q^2 = 0.1 (GeV/c)^2.


Item Type:Article
Additional Information:©1997 The American Physical Society. Received 24 February 1997. The persistent efforts of the staff of the MIT/Bates facility to provide high quality beam and improve the experiment are gratefully acknowledged. Financial support for the construction of the Moller apparatus from CEBAF is acknowledged. This work was supported by NSF Grants No. PHY-9420470 (Caltech), No. PHY-9420787 (Illinois), No. PHY-9457906yPHY-9229690 (Maryland), No. PHY-9507412 (RPI), and DOE Cooperative Agreement No. DE-FC02-94ER40818 (MIT/Bates).
Record Number:CaltechAUTHORS:MUEprl97
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:MUEprl97
Alternative URL:http://dx.doi.org/10.1103/PhysRevLett.78.3824
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:11004
Collection:CaltechAUTHORS
Deposited By: Archive Administrator
Deposited On:22 Jun 2008
Last Modified:18 Sep 2014 18:11

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