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The Strange Quark Contribution to the Protons Magnetic Moment

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 نشر من قبل Elizabeth J. Beise
 تاريخ النشر 2003
  مجال البحث
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We report a new determination of the strange quark contribution to the protons magnetic form factor at a four-momentum transfer Q2 = 0.1 (GeV/c)^2 from parity-violating e-p elastic scattering. The result uses a revised analysis of data from the SAMPLE experiment which was carried out at the MIT-Bates Laboratory. The data are combined with a calculation of the protons axial form factor GAe to determine the strange form factor GMs(Q2=0.1)=0.37 +- 0.20 +- 0.26 +- 0.07. The extrapolation of GMs to its Q2=0 limit and comparison with calculations is also discussed.



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