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Measurement E151M415

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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 : 0.0844 GeV2
W : 1535 GeV
ε : 0.6289
Ebeam : 1.3383 GeV
εL: 0.0768 

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
0.55 138 0.1592 0.673 0.0316
0.55 234 0.1526 0.6457 0.0315
0.65 162 -1.6084 0.5437 0.104
0.65 210 -1.8754 0.5232 0.1199
0.65 222 0.66 0.6026 0.0507
0.65 234 -0.6061 0.5808 0.048
0.65 246 -0.0985 0.5804 0.0306
0.75 150 0.1889 0.6851 0.0322
0.75 210 1.4333 0.6862 0.0937
0.75 222 1.1264 0.6261 0.0759
0.75 246 0.121 0.588 0.0309
0.75 258 -0.5402 0.618 0.0449
0.85 234 0.4129 0.6687 0.0394
0.85 246 -0.0289 0.5955 0.0301
0.85 258 0.6521 0.4933 0.0503
0.95 114 -0.5063 0.597 0.0434
0.95 126 -1.2176 0.5014 0.0811
0.45 246 2.0142 1.2974 0.1249
0.55 222 -0.0719 1.0264 0.0303
0.55 234 -0.1289 0.8738 0.031
0.55 258 1.5445 1.466 0.0977
0.65 150 -1.1958 0.6725 0.078
0.65 162 -1.2529 0.7071 0.0812
0.65 210 0.7507 1.2487 0.0543
0.65 222 -0.4774 0.8503 0.0416
0.65 234 1.1266 1.1567 0.0742
0.65 246 0.9178 0.9577 0.0629
0.75 150 -1.4342 0.6137 0.0914
0.75 222 1.311 1.1198 0.0845
0.75 246 1.9215 1.2801 0.1195
0.75 258 1.6314 1.3826 0.1027
0.85 222 0.7164 1.1708 0.0525
0.85 234 0.7298 0.9452 0.0532
0.85 246 -0.1657 0.7307 0.0316
0.85 258 1.5988 0.9568 0.1008
0.95 234 -0.5518 0.6819 0.0448