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Measurement E151M179

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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 : 1445 GeV
ε : 0.5659
Ebeam : 1.0539 GeV
εL: 0.1008 

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 42 -0.3758 0.7627 0.0522
0.55 258 0.4375 0.6815 0.0581
0.65 234 -0.8029 0.6858 0.0962
0.65 258 -0.311 0.6257 0.0464
0.75 246 -0.7655 0.6157 0.0921
0.75 258 1.094 0.7071 0.128
0.85 234 0.8031 0.7716 0.0962
0.85 258 1.7737 0.6992 0.204