Measurement E151M908

Experiment:	EG4
Year:	2016	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).
Spokesperson:	Xiaochao Zheng
Reaction:	ep → π⁺n
Polarization:	beam (longitudinal), target (longitudinal)
Quantity:	A_UL
ε_L:	0.0341
Q²:	0.0415 GeV²
W:	1655.0 GeV
E_beam:	2.2596 GeV
ε:	0.8403

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty
0.45	78.0	-1.0969	0.862
0.45	270.0	1.0885	0.8627
0.55	222.0	0.3852	0.9693
0.55	258.0	1.2057	0.8939
0.55	270.0	1.0903	0.83
0.65	126.0	-1.2387	0.9245
0.65	198.0	2.4631	0.9929
0.65	210.0	1.0708	1.0289
0.75	66.0	-1.2463	0.929
0.75	210.0	1.0471	1.1541
0.75	234.0	-0.7791	0.9202
0.75	270.0	0.3026	0.9364
0.75	282.0	0.7375	0.7934
0.85	114.0	1.9246	1.3574
0.85	210.0	-1.4842	0.8452
0.85	222.0	-0.2236	1.091
0.35	78.0	-0.294	0.5686
0.45	270.0	-0.3395	0.6311
0.45	282.0	-0.4079	0.5534
0.55	222.0	1.982	0.7588
0.55	258.0	-0.2114	0.573
0.55	270.0	-0.9364	0.4771
0.65	126.0	-0.3252	0.5208
0.65	210.0	0.4246	0.7233
0.65	222.0	1.2921	0.7883
0.75	114.0	-0.1432	0.7085
0.75	210.0	-0.0648	0.6736
0.75	222.0	0.7011	0.7394
0.75	270.0	-0.0534	0.6759
0.75	282.0	-0.0786	0.5503
0.85	102.0	1.0956	0.8191
0.85	126.0	-0.8537	0.6281
0.85	210.0	1.3284	0.7077
0.85	222.0	-0.3181	0.8081

CLAS Physics Database