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Measurement E151M83

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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 : 0.0059 GeV2
W : 1325 GeV
ε : 0.8444
Ebeam : 1.0539 GeV
εL: 0.0227 

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
0.45 42 -1.0285 0.6299 0.1208
0.55 246 0.4839 0.7831 0.0627
0.65 234 -0.0714 0.6131 0.0311
0.65 246 0.2113 0.5843 0.0384
0.65 258 -0.6321 0.6526 0.0779
0.75 234 1.0507 0.7419 0.1232
0.75 246 0.8623 0.715 0.1026
0.85 234 0.144 0.661 0.0342
0.85 246 -1.0171 0.5154 0.1195