Letter of Intent to JLab PAC 25 December 2 , 2003 Extraction of G pE from a double - polarization measurement of two - body 3 He breakup

نویسندگان

  • L. Wan
  • Y. Xiao
  • C. Zhang
چکیده

We propose to determine the proton electric form-factor G E at high Q2 by measuring the transverse asymmetry Ax in the 3 ~ He(~e, e′p)d reaction. We present a doublepolarization approach distinct both from a cross-section measurement and recoil polarimetry. As the key instrument we propose to use the two-body breakup of polarized 3He acting as an effective polarized proton target.

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تاریخ انتشار 2003