Measurement E151M646

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:	0.1399
Q²:	0.1435 GeV²
W:	1565.0 GeV
E_beam:	1.9889 GeV
ε:	0.8118

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty	syst. uncert.
0.45	282.0	-0.1116	0.7683	0.0308
0.55	282.0	0.7114	0.8254	0.0529
0.65	114.0	-0.4496	0.7184	0.0407
0.65	126.0	-0.6705	0.7308	0.0508
0.65	234.0	0.1793	0.7127	0.0319
0.65	294.0	-0.3044	0.5585	0.0353
0.75	114.0	-1.188	0.5817	0.0786
0.75	126.0	-0.204	0.7919	0.0325
0.75	138.0	-0.4341	0.7023	0.0401
0.75	198.0	0.0661	0.8266	0.0303
0.75	210.0	-0.4763	0.6383	0.0418
0.75	222.0	-0.1696	0.6201	0.0317
0.75	234.0	-0.4641	0.6415	0.0413
0.75	246.0	0.1197	0.7579	0.0309
0.75	294.0	0.1819	0.7422	0.032
0.85	90.0	0.2878	0.7134	0.0348
0.85	126.0	0.7529	0.8505	0.055
0.85	210.0	-1.3911	0.5911	0.0902
0.85	222.0	0.138	0.6203	0.0312
0.85	246.0	0.9545	0.5763	0.0656
0.85	258.0	0.0454	0.7586	0.0301
0.95	90.0	-0.0067	0.7011	0.03
0.95	102.0	-0.2081	0.7188	0.0326
0.95	222.0	-0.421	0.6443	0.0395
0.95	234.0	0.7314	0.7154	0.0539
0.95	246.0	0.8267	0.7765	0.0588
0.95	258.0	-0.3494	0.652	0.0368

CLAS Physics Database