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    User name X. Zheng

    Log entry time 13:28:30 on July 3,2001

    Entry number 65602

    keyword=Pion Asymmetry


    Pion Asymmetry:

    raw asymmetry:
    Transverse, Beam IN, Field 270
    left: 0.012297 +/- 0.002969; right: -0.013263 +/- 0.003425;
    Transverse, Beam OUT, Field 270
    left: -0.015529 +/- 0.004096; right: 0.019869 +/- 0.004713;

    Transverse asymmetry corrected for target polarization , beam polarization and dilution:
    left: 0.041987 +/- 0.007527; right: 0.048672 +/- 0.008674;

    Transverse, left & right combined, and corrected for polarizaiton and dilution:
    0.044858 +/- 0.005685.

    raw asymmetry:
    Longitudinal, Beam IN, Field 0
    left: -0.019038 +/- 0.002523; right: -0.023210 +/- 0.002990;
    Longitudinal, Beam OUT, Field 0
    left: 0.015205 +/- 0.002616; right: 0.020955 +/- 0.003104;
    Longitudinal, Beam IN, Field 180
    left: 0.019167 +/- 0.002662; right: 0.018829 +/- 0.003216;
    Longitudinal, Beam OUT, Field 180
    left: -0.020944 +/- 0.002242; right: -0.022894 +/- 0.002654;

    Asymmetry corrected for polarization (target 37% at 0 degree and 35% for 180 degree) and dilution.

    Longitudinal: left: 0.066780 +/- 0.004325; right: 0.077243 +/- 0.005147;
    Longitudinal left & right combined, also corrected for polarization and dilution:
    0.071111 +/- 0.003311.

    data analyzed: run 1502/20502 ~ 1903/20903