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Measurement E151M199

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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 : 0.0171 GeV2
W : 1205 GeV
ε : 0.9594
Ebeam : 1.3383 GeV
εL: 0.1672 

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
0.65 258 1.1165 0.8965 0.0736
0.65 270 -0.6857 0.4181 0.051
0.85 162 -0.7932 0.4046 0.0564
0.85 198 1.1118 0.9296 0.0734
0.55 270 0.1099 0.4669 0.0308
0.75 174 -0.2031 0.4202 0.0325
0.75 258 0.102 0.4592 0.0307
0.85 186 -0.0829 0.4271 0.0304