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Measurement E151M391

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Experiment: EG4, 2016

Spokespersons: Xiaochao Zheng

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).

No publications available for this experiment

Quantity measured: AUL,
Target spin asymmetry.
Beam: e, polarization: longitudinal
Target: p (Z=1, A=1), polarization: longitudinal
Final state: π+n, polarization: none

Q2 : 0.0291 GeV2
W : 1505 GeV
ε : 0.7222
Ebeam : 1.3383 GeV
εL: 0.0371 

Select data slice:
cos(θπ+) =
Observable quantity measured (Y axis): AUL,
Plot measurement data

Parameter (X axis): φ(π+), degrees

Click here to get data in text file, delimited with tabs.

Measured data:

cos(θπ+) φ(π+),
degrees 		AUL Data errors Systematic errors
0.35 42 1.2244 1.0248 0.0796
0.45 30 0.234 0.913 0.0331
0.45 42 0.5444 0.9235 0.0444
0.45 138 -0.7661 0.6811 0.055
0.45 222 0.9225 1.0221 0.0631
0.45 234 -0.7853 0.6042 0.056
0.45 246 3.1767 3.1767 0.1936
0.55 30 1.1318 1.0159 0.0745
0.55 42 -0.8873 0.6161 0.0613
0.55 126 0.967 1.1284 0.0655
0.55 138 -1.4596 0.409 0.0929
0.55 210 2.0056 1.0179 0.1244
0.55 222 1.3907 0.915 0.089
0.55 234 0.5136 0.7428 0.0431
0.65 126 -1.2163 0.5516 0.0791
0.65 138 0.5116 0.946 0.043
0.65 150 -0.008 0.8214 0.03
0.65 210 2.2973 2.2973 0.1416
0.65 222 1.0481 0.698 0.0699
0.65 234 -0.0794 0.5558 0.0304
0.65 246 0.6946 0.8303 0.0515
0.75 126 -1.6824 0.3769 0.1057
0.75 138 3.4684 3.4684 0.211
0.75 150 0.2392 0.8125 0.0333
0.75 222 0.7351 0.8322 0.0535
0.75 234 -0.5122 0.4912 0.043
0.75 246 0.2727 0.7181 0.0342
0.75 258 1.2353 0.9188 0.0802
0.85 126 -1.331 0.4853 0.0856
0.85 210 0.9561 0.9723 0.0649
0.85 222 -0.0926 0.641 0.0305
0.85 234 0.4936 0.7065 0.0422
0.85 246 0.2477 0.5798 0.0335
0.85 258 -0.9578 0.4355 0.065
0.95 234 0.4603 0.8678 0.0408
0.25 42 0.8771 0.6305 0.062
0.35 42 -0.7995 0.534 0.0579
0.45 18 -0.1043 0.5567 0.0307
0.45 30 0.0805 0.5276 0.0304
0.45 42 0.481 0.5017 0.0423
0.45 138 -0.7337 0.613 0.0544
0.45 150 0.0596 0.6533 0.0302
0.45 234 0.7697 0.5602 0.0563
0.55 42 -0.603 0.5355 0.0479
0.55 126 0.4781 0.5894 0.0421
0.55 138 -0.4742 0.5101 0.042
0.55 150 -0.8916 0.5334 0.0628
0.55 162 -0.2781 0.6331 0.0346
0.55 222 0.5796 0.446 0.0468
0.55 234 0.1449 0.4489 0.0313
0.55 246 0.1919 0.5726 0.0323
0.65 126 -0.1021 0.597 0.0307
0.65 138 -0.2162 0.5654 0.0329
0.65 150 -1.1045 0.4775 0.0747
0.65 174 -1.0481 0.5185 0.0715
0.65 210 -0.1413 0.5624 0.0312
0.65 222 0.5941 0.3908 0.0475
0.65 234 1.1522 0.3921 0.0774
0.65 246 -0.5228 0.5262 0.0441
0.75 30 -0.4275 0.5953 0.04
0.75 138 0.6337 0.4831 0.0494
0.75 150 -0.1934 0.5749 0.0323
0.75 162 -0.0409 0.5684 0.0301
0.75 210 1.0154 0.5613 0.0697
0.75 222 1.2139 0.4948 0.0809
0.75 234 0.1636 0.4846 0.0317
0.75 246 0.3666 0.415 0.0376
0.85 126 -0.6029 0.5709 0.0479
0.85 150 -1.2734 0.5093 0.0844
0.85 210 0.9555 0.5033 0.0663
0.85 222 0.1831 0.4545 0.0321
0.85 234 0.9475 0.384 0.0659
0.85 246 0.5081 0.4785 0.0435