Spayde, D.T.Averett, T.Barkhuff, D.Beck, D.H.Beise, E.J.Breuer, H.Carr, R.Covrig, S.Dodson, G.Dow, K.Farkhondeh, M.Filippone, B.W.Franklin, W.Hasty, R.Ito, T.M.Korsch, W.Kowalski, S.McKeown, R.D.Mueller, B.Pitt, M.L.Ramsey-Musolf, M.J.Ritter, J.Tieulent, R.Tsentalovich, E.Wells, S.P.Yang, B.Zwart, T.We report a new determination of the strange quark contribution to the proton’s 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 proton’s axial form factor GeA to determine the strange form factor GsM (Q2=0.1)=0.37±0.20±0.26±0.07. The extrapolation of GsM to its Q2 = 0 limit and comparison with calculations is also discussed.PhysicsStrange quarkProtonsArticle