Measurement E151M2363

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_LL
ε_L:	0.1388
Q²:	0.2445 GeV²
W:	1715.0 GeV
E_beam:	2.999 GeV
ε:	0.8569

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.55	102.0	-0.9768	0.9244
0.55	114.0	-0.5055	0.9731
0.65	102.0	0.0103	0.8815
0.65	114.0	0.0424	0.86
0.65	126.0	-0.4065	0.9316
0.65	186.0	1.327	1.0593
0.65	210.0	-0.4126	0.9784
0.65	234.0	-0.7274	1.0281
0.65	282.0	0.3108	0.9137
0.65	294.0	-0.3525	0.8974
0.75	78.0	-0.3205	0.9872
0.75	90.0	0.2426	0.8371
0.75	114.0	0.8489	1.0507
0.75	126.0	1.1229	0.7755
0.75	138.0	-0.0528	1.0467
0.75	186.0	-0.1292	1.0125
0.75	198.0	-1.7053	0.7218
0.75	210.0	0.7056	0.791
0.75	222.0	-0.9636	0.8034
0.75	234.0	0.5976	1.008
0.75	282.0	-0.7518	0.9714
0.75	294.0	-0.5006	0.8199
0.85	66.0	1.836	0.9045
0.85	78.0	0.3595	0.7188
0.85	90.0	-0.2423	0.7848
0.85	102.0	-0.079	0.9003
0.85	162.0	0.4748	1.0709
0.85	186.0	-0.5325	0.9251
0.85	198.0	-0.8606	0.7817
0.85	210.0	-1.1622	0.6812
0.85	222.0	-0.3886	0.6719
0.85	234.0	1.245	0.5919
0.85	246.0	0.1736	0.735
0.85	258.0	-1.1082	0.9933
0.95	90.0	1.0099	0.8834
0.95	174.0	-1.5796	0.8396
0.95	186.0	-0.3196	0.79
0.95	198.0	-0.2434	0.7048
0.95	210.0	0.2448	0.7196
0.95	222.0	-0.215	0.6587
0.95	234.0	-0.2801	0.6593
0.95	246.0	0.611	0.5866
0.95	258.0	0.0187	0.7644
0.95	270.0	0.112	0.7664

CLAS Physics Database