Publications [#329805] of Calvin R. Howell

Papers Published
  1. Vlahovic, B; Voskanyan, H; Wijesooriya, K; Wojtsekhowski, BB; Woo, RJ; Xiong, F; Zainea, GD; Zhou, Z, G(E(p))/G(M(p)) ratio by polarization transfer in e-->p --> ep-->, Physical review letters, vol. 84 no. 7 (February, 2000), pp. 1398-1402, American Physical Society (APS) [doi] .

    Abstract:
    The ratio of the proton's elastic electromagnetic form factors, G(E(p))/G(M(p)), was obtained by measuring P(t) and P(l), the transverse and the longitudinal recoil proton polarization, respectively. For elastic e-->p-->ep-->, G(E(p))/G(M(p)) is proportional to P(t)/P(l). Simultaneous measurement of P(t) and P(l) in a polarimeter provides good control of the systematic uncertainty. The results for the ratio G(E(p))/G(M(p)) show a systematic decrease as Q2 increases from 0.5 to 3.5 GeV2, indicating for the first time a definite difference in the spatial distribution of charge and magnetization currents in the proton.

Duke University * Arts & Sciences * Physics * Faculty * Staff * Grad * Researchers * Reload * Login
Copyright (c) 2001-2002 by Duke University Physics.

x