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Measurement E151M345

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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 : 0.205 GeV2
W : 1415 GeV
ε : 0.6925
Ebeam : 1.3383 GeV
εL: 0.284 

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
0.65 234 0.6166 0.715 0.0486
0.65 246 0.7707 0.738 0.0564
0.65 258 0.4124 0.7041 0.0394
0.75 102 0.4821 0.7647 0.0423
0.75 114 -0.2385 0.7047 0.0334
0.75 138 -0.6246 0.6733 0.0489
0.75 162 -0.1534 0.7538 0.0315
0.75 234 -1.2766 0.5323 0.0845
0.75 246 0.4719 0.6016 0.0419
0.75 270 0.5049 0.6642 0.0433
0.85 114 -0.6175 0.6934 0.0486
0.85 138 -1.0599 0.6459 0.0722
0.85 246 0.0129 0.5896 0.03
0.85 258 0.3055 0.5911 0.0355
0.85 270 0.2313 0.5875 0.0332
0.95 78 -0.8846 0.5589 0.0625
0.95 90 -0.185 0.5724 0.0321
0.95 270 -0.5313 0.5792 0.0445
0.95 282 -0.5574 0.5255 0.0457
0.55 246 1.8306 1.4157 0.1142
0.55 258 -0.1912 0.9934 0.0321
0.55 270 0.934 1.1909 0.0637
0.65 246 1.7294 1.4432 0.1084
0.65 258 -0.714 0.661 0.0524
0.75 126 -0.434 0.9421 0.0398
0.75 222 0.2152 1.0313 0.0327
0.75 234 0.198 1.0201 0.0323
0.75 246 -0.5827 0.6196 0.0462
0.75 258 -1.3896 0.4683 0.0889
0.75 270 0.603 0.9836 0.0471
0.85 114 -0.6819 0.8946 0.0509
0.85 150 -0.8889 0.764 0.0614
0.85 270 -0.3238 0.7283 0.0358
0.85 282 0.2799 0.9578 0.0344
0.85 294 1.8991 1.2256 0.1182