Measurement E151M209

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:	0.7216
Q²:	0.101 GeV²
W:	1205.0 GeV
E_beam:	1.3383 GeV
ε:	0.9181

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty
0.45	282.0	-0.378	0.2577
0.55	270.0	-0.4875	0.4761
0.55	282.0	0.7713	0.615
0.55	294.0	1.4293	0.7849
0.65	270.0	0.35	0.6552
0.65	282.0	-0.1643	0.4571
0.75	270.0	-0.2632	0.5444
0.75	282.0	0.8408	0.7181
0.85	126.0	-0.3093	0.5433
0.85	138.0	-0.1368	0.6202
0.85	282.0	0.0765	0.6335
0.95	102.0	0.3156	0.6297
0.95	114.0	0.3237	0.6313
0.95	126.0	-0.1232	0.5316
0.95	138.0	0.6383	0.7247
0.95	150.0	-0.0214	0.5367
0.95	162.0	-0.4887	0.4339
0.95	174.0	0.5462	0.7162
0.95	186.0	-0.4266	0.4787
0.95	198.0	2.1761	2.1761
0.95	210.0	0.0468	0.5802
0.45	294.0	0.0454	0.4597
0.55	270.0	-0.51	0.3489
0.55	282.0	0.5911	0.3374
0.55	294.0	-0.5038	0.386
0.65	270.0	0.1267	0.3767
0.65	282.0	0.6023	0.4162
0.75	270.0	0.2206	0.3311
0.75	282.0	0.4765	0.4129
0.95	102.0	0.3429	0.4162
0.95	114.0	0.1397	0.3985
0.95	138.0	-0.1083	0.369
0.95	174.0	0.127	0.3954
0.95	186.0	-0.8636	0.3171
0.95	210.0	0.3485	0.3446
0.95	222.0	-0.4048	0.3635

CLAS Physics Database