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Measurement E151M185

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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 : 0.0101 GeV2
W : 1475 GeV
ε : 0.603
Ebeam : 1.0539 GeV
εL: 0.0126 

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
0.25 42 0.3854 0.7434 0.0531
0.35 30 -0.952 0.6742 0.1124
0.35 42 1.3552 0.6523 0.1571
0.35 54 -0.2208 0.5526 0.0391
0.35 66 2.2897 0.6299 0.2622
0.45 42 0.0627 0.6764 0.0308
0.45 54 0.4898 0.5955 0.0633
0.45 66 1.8142 0.7483 0.2086
0.45 222 -0.1806 0.6106 0.0364
0.45 234 0.1023 0.6714 0.0322
0.55 30 0.1624 0.7507 0.0352
0.55 42 0.1688 0.6428 0.0356
0.55 54 -0.0421 0.7964 0.0304
0.55 66 -0.0543 0.7809 0.0306
0.55 150 -0.2792 0.7631 0.0437
0.55 162 -0.5912 0.7368 0.0736
0.55 186 0.7847 0.8168 0.0942
0.55 210 0.2677 0.7856 0.0427
0.55 222 0.7738 0.6174 0.093
0.55 234 0.6061 0.5259 0.0752
0.55 246 0.3407 0.5436 0.049
0.55 258 -0.8598 0.6491 0.1023
0.65 42 1.36 0.8069 0.1576
0.65 162 -0.5496 0.7303 0.0694
0.65 210 -0.0838 0.7389 0.0315
0.65 222 -0.0242 0.5733 0.0301
0.65 234 -0.4118 0.4776 0.0556
0.65 246 0.6534 0.6446 0.0802
0.75 222 -0.1969 0.6069 0.0374
0.75 234 -0.5151 0.4812 0.0658
0.75 246 0.3018 0.4909 0.0456
0.85 210 -0.0408 0.7303 0.0304
0.85 222 0.2578 0.5786 0.042
0.85 234 0.6234 0.5786 0.077
0.85 246 -0.9296 0.4556 0.1099