CLAS Physics Database

Measurement E151M1762

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: ALL
εL: 0.433
Q2: 0.1715 GeV2
W: 1355.0 GeV
Ebeam: 1.9889 GeV
ε: 0.9108

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALL uncertainty syst. uncert.
0.15 66.0 0.1062 0.7552 0.0307
0.15 306.0 -0.4481 0.7899 0.0405
0.25 66.0 -0.1066 0.6521 0.0307
0.25 78.0 -0.5214 0.7709 0.0436
0.25 306.0 -0.3479 0.7267 0.0367
0.35 66.0 -0.6743 0.7415 0.0507
0.35 282.0 0.0891 0.7896 0.0305
0.35 294.0 0.5972 0.5819 0.047
0.45 66.0 0.7376 0.7402 0.0538
0.45 78.0 -0.6496 0.6645 0.0495
0.55 78.0 -1.3862 0.6657 0.0892
0.55 258.0 0.2865 0.7229 0.0347
0.55 294.0 -1.0254 0.7364 0.069
0.65 90.0 -0.3196 0.6878 0.0357
0.65 102.0 0.5175 0.6164 0.0434
0.65 114.0 -0.057 0.6183 0.0302
0.65 246.0 -1.2232 0.6437 0.08
0.65 258.0 0.6278 0.5956 0.0484
0.65 270.0 0.7142 0.5098 0.0527
0.65 282.0 -0.3157 0.7442 0.0356
0.75 78.0 2.8437 2.8437 0.1749
0.75 90.0 0.1411 0.496 0.0312
0.75 102.0 0.278 0.4728 0.0344
0.75 114.0 -0.5254 0.6469 0.0437
0.75 126.0 0.591 0.5908 0.0467
0.75 138.0 -1.2844 0.6876 0.0834
0.75 222.0 -0.3433 0.7199 0.0365
0.75 234.0 0.5497 0.5775 0.0448
0.75 246.0 -1.2765 0.5102 0.083
0.75 258.0 -0.1113 0.4821 0.0307
0.75 270.0 0.1298 0.4611 0.031
0.75 282.0 0.3496 0.5896 0.0367
0.85 90.0 -0.7169 0.5605 0.0528
0.85 102.0 0.6137 0.4642 0.0478
0.85 114.0 -0.0499 0.5054 0.0302
0.85 126.0 -0.0696 0.4894 0.0303
0.85 138.0 0.2839 0.6062 0.0346
0.85 150.0 0.3758 0.787 0.0377
0.85 210.0 0.2746 0.7871 0.0343
0.85 222.0 0.9669 0.5379 0.0658
0.85 234.0 0.632 0.495 0.0486
0.85 246.0 0.4735 0.4584 0.0415
0.85 258.0 0.2969 0.4337 0.035
0.85 270.0 -0.3198 0.5049 0.0357
0.85 282.0 0.5751 0.4378 0.046
0.85 294.0 0.8038 0.6176 0.0572
0.95 66.0 -0.6951 0.7349 0.0517
0.95 102.0 -0.2362 0.6392 0.0332
0.95 114.0 1.2287 0.5255 0.0803
0.95 126.0 -1.4978 0.476 0.0956
0.95 138.0 1.1299 0.524 0.0747
0.95 162.0 1.165 0.6615 0.0767
0.95 222.0 0.3329 0.6143 0.0362
0.95 234.0 0.0607 0.5809 0.0302
0.95 246.0 -0.1874 0.5051 0.0321
0.95 258.0 0.7779 0.3992 0.0559
0.95 270.0 -0.2562 0.4612 0.0338
0.95 282.0 0.7926 0.4434 0.0566
0.95 294.0 -0.3874 0.526 0.0381