Measurement of the Proton's Neutral Weak Magnetic Form Factor

Details Measurement of the Proton's Neutral Weak Magnetic Form Factor Measurement of the Proton's Neutral Weak Magnetic Form Factor

1997-02-26

arxiv.org/abs/nucl-ex/9702004v1

Phys.Rev.Lett. 78 (1997) 3824-3827

Physics

Nuclear Physics

Nuclear Experiment

4 pages TEX, text available at http://www.krl.caltech.edu/preprints/OAP.html

Scientific paper

10.1103/PhysRevLett.78.3824

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 $G_M^Z= 0.34 \pm 0.09 \pm 0.04 \pm 0.05$ n.m. at $Q^2=0.1$ (GeV/c)${}^2$.

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