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Measurement E151M163

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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 : 0.005 GeV2
W : 1445 GeV
ε : 0.6698
Ebeam : 1.0539 GeV
εL: 0.008 

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 54 -0.2191 0.7282 0.039
0.55 42 0.4668 0.8569 0.061
0.55 54 -0.2037 0.7992 0.0379
0.55 222 0.1741 0.7778 0.0359
0.65 234 0.8532 0.7488 0.1016
0.75 234 0.0716 0.6568 0.0311
0.85 222 0.034 0.7027 0.0302
0.85 234 1.6134 0.6506 0.186
0.85 246 -1.4099 0.5266 0.1632