Measurement E151M2397

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:	0.0571
Q²:	0.1205 GeV²
W:	1805.0 GeV
E_beam:	2.999 GeV
ε:	0.8401

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.55	186.0	-1.4082	1.0202
0.55	210.0	-0.4162	1.1196
0.65	138.0	0.0174	1.0592
0.65	186.0	-0.81	1.1378
0.65	198.0	-1.1307	0.858
0.65	210.0	-0.7161	1.0249
0.75	102.0	1.1003	0.9243
0.75	114.0	1.0312	0.955
0.75	126.0	1.5987	1.1746
0.75	198.0	-0.7074	0.996
0.75	210.0	-0.7079	0.8638
0.75	222.0	-0.2415	0.9142
0.75	270.0	-0.2119	1.0166
0.75	282.0	2.0897	0.8096
0.85	90.0	0.4533	0.8586
0.85	102.0	0.3705	0.7906
0.85	114.0	1.0621	0.7244
0.85	126.0	1.2328	0.9832
0.85	174.0	-2.2084	0.863
0.85	186.0	0.4735	0.8967
0.85	198.0	-0.1436	0.7337
0.85	210.0	1.2512	0.852
0.85	222.0	-0.4126	0.7872
0.85	234.0	0.2877	0.7971
0.95	186.0	-0.5973	0.8881
0.95	198.0	-0.1329	0.9003
0.95	210.0	-1.0414	0.7863
0.95	234.0	-1.1697	0.8603

CLAS Physics Database