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Measurement E151M195

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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 : 0.0593 GeV2
W : 1475 GeV
ε : 0.5361
Ebeam : 1.0539 GeV
εL: 0.061 

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

Parameter (X axis): φ(π+), degrees

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Measured data:

cos(θπ+) φ(π+),
degrees 		AUL Data errors Systematic errors
0.35 54 -0.2412 0.7103 0.0407
0.55 246 1.3044 0.7715 0.1514
0.65 234 -0.6251 0.6732 0.0772
0.65 246 -0.6679 0.4617 0.0817
0.65 258 -0.6181 0.5192 0.0765
0.75 246 0.672 0.7236 0.0821
0.75 258 0.0576 0.5945 0.0307
0.85 246 -0.4446 0.6404 0.0588
0.85 258 0.3694 0.575 0.0516
0.85 270 1.0228 0.7484 0.1202