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	syst. uncert.
0.55	186.0	-1.4082	1.0202	0.1064
0.55	210.0	-0.4162	1.1196	0.0426
0.65	138.0	0.0174	1.0592	0.03
0.65	186.0	-0.81	1.1378	0.066
0.65	198.0	-1.1307	0.858	0.0873
0.65	210.0	-0.7161	1.0249	0.06
0.75	102.0	1.1003	0.9243	0.0852
0.75	114.0	1.0312	0.955	0.0806
0.75	126.0	1.5987	1.1746	0.1197
0.75	198.0	-0.7074	0.996	0.0594
0.75	210.0	-0.7079	0.8638	0.0595
0.75	222.0	-0.2415	0.9142	0.0347
0.75	270.0	-0.2119	1.0166	0.0337
0.75	282.0	2.0897	0.8096	0.1545
0.85	90.0	0.4533	0.8586	0.0445
0.85	102.0	0.3705	0.7906	0.0403
0.85	114.0	1.0621	0.7244	0.0827
0.85	126.0	1.2328	0.9832	0.0943
0.85	174.0	-2.2084	0.863	0.1629
0.85	186.0	0.4735	0.8967	0.0456
0.85	198.0	-0.1436	0.7337	0.0318
0.85	210.0	1.2512	0.852	0.0956
0.85	222.0	-0.4126	0.7872	0.0424
0.85	234.0	0.2877	0.7971	0.0365
0.95	186.0	-0.5973	0.8881	0.0527
0.95	198.0	-0.1329	0.9003	0.0315
0.95	210.0	-1.0414	0.7863	0.0813
0.95	234.0	-1.1697	0.8603	0.09

CLAS Physics Database