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Measurement E151M2983

Experiment: EG4
Year: 2016

Experiment comment:

Final asymmetry results for the ep-> e pi+ (n) channel extracted from CLAS/EG4 data obtained using a longitudinally polarized beam and a longitudinally polarized NH3 target (CAA HS07-02).
Spokesperson: Xiaochao Zheng
Reaction: ep → π+n
Polarization: beam (longitudinal), target (longitudinal)
Quantity: ALU
εL: 0.3844
Q2: 0.1435 GeV2
W: 1355.0 GeV
Ebeam: 1.9889 GeV
ε: 0.9189

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty
0.25 66.0 -0.0096 0.228
0.25 294.0 -0.0568 0.2173
0.35 66.0 0.3588 0.249
0.35 78.0 -0.4699 0.196
0.45 78.0 0.0535 0.198
0.45 294.0 -0.3261 0.2267
0.55 66.0 0.6399 0.1652
0.55 78.0 -0.1049 0.255
0.55 282.0 -0.0173 0.2626
0.65 90.0 0.1096 0.2571
0.65 102.0 0.4578 0.1989
0.65 114.0 -0.2606 0.2105
0.65 246.0 0.4349 0.2482
0.65 258.0 0.1776 0.2044
0.65 270.0 -0.2524 0.1834
0.65 282.0 0.0543 0.2959
0.75 90.0 -0.0538 0.2095
0.75 102.0 -0.0451 0.1586
0.75 114.0 0.0254 0.177
0.75 126.0 0.0895 0.2097
0.75 138.0 0.005 0.2437
0.75 222.0 -0.0936 0.2483
0.75 234.0 -0.2055 0.2312
0.75 246.0 -0.0769 0.177
0.75 258.0 -0.2888 0.1659
0.75 270.0 -0.2579 0.1862
0.75 282.0 -0.4981 0.2757
0.75 294.0 0.1391 0.2668
0.85 90.0 0.2405 0.1954
0.85 102.0 0.0272 0.1637
0.85 114.0 -0.4427 0.1611
0.85 126.0 0.0156 0.1639
0.85 138.0 0.099 0.1976
0.85 150.0 -0.0883 0.2566
0.85 162.0 -0.1636 0.2909
0.85 222.0 -0.3974 0.1786
0.85 234.0 -0.4344 0.1778
0.85 246.0 0.0104 0.1889
0.85 258.0 -0.2387 0.1873
0.85 270.0 -0.1349 0.1522
0.85 282.0 -0.2821 0.149
0.85 294.0 0.0619 0.2424
0.95 78.0 -0.0157 0.2622
0.95 102.0 -0.0814 0.2587
0.95 114.0 -0.4311 0.2068
0.95 126.0 -0.2563 0.2119
0.95 138.0 0.4133 0.2191
0.95 150.0 -0.6073 0.2031
0.95 222.0 0.0107 0.2264
0.95 234.0 -0.3115 0.2418
0.95 246.0 -0.0485 0.2056
0.95 258.0 -0.2863 0.1876
0.95 270.0 0.1178 0.1934
0.95 282.0 0.3653 0.1711
Created in SINP MSU, CLAS Collaboration