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Measurement E151M20

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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 : 0.0071 GeV2
W : 1235 GeV
ε : 0.9208
Ebeam : 1.0539 GeV
εL: 0.0541 

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

Parameter (X axis): φ(π+), degrees

Click here to get data in text file, delimited with tabs.

Measured data:

cos(θπ+) φ(π+),
degrees
AUL Data errors Systematic errors
0.55 258 0.2722 0.5728 0.0431
0.65 246 -0.2013 0.4378 0.0377
0.65 258 0.2702 0.4959 0.043
0.65 270 0.2522 0.5343 0.0415
0.75 258 0.0698 0.5396 0.031