Measurement of the proton’s neutral weak magnetic form factor

B. Mueller, D. H. Beck, E. J. Beise, E. Candell, L. Cardman, R. Carr, R. C. DiBari, 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, J. NapolitanoD. Nilsson, M. Pitt, N. Simicevic, B. Terburg, S. P. Wells

Research output: Contribution to journalArticlepeer-review

162 Scopus citations


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 Gm z = 0.34 ± 0.09 ± 0.04 ± 0.05 n.m. at Q2 = 0.1 (GeV/c)2.

Original languageEnglish
Pages (from-to)3824-3827
Number of pages4
JournalPhysical Review Letters
Issue number20
StatePublished - 1997

ASJC Scopus subject areas

  • General Physics and Astronomy


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