Measurement E151M1892

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:	0.0309
Q²:	0.0348 GeV²
W:	1625.0 GeV
E_beam:	1.9889 GeV
ε:	0.8115

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.35	78.0	-1.2885	0.7452
0.35	270.0	-0.2397	0.691
0.35	282.0	0.8119	0.7379
0.45	18.0	-0.9579	0.8283
0.45	30.0	0.3596	0.9169
0.45	66.0	-0.0959	0.9949
0.45	78.0	0.1043	0.8074
0.45	258.0	-0.3054	0.8137
0.45	270.0	0.0334	0.7046
0.45	282.0	0.0973	0.7755
0.45	330.0	1.3378	0.8264
0.55	78.0	-1.6962	0.8714
0.55	90.0	-0.3489	0.9519
0.55	114.0	-0.1917	0.8558
0.55	126.0	-0.4673	0.7115
0.55	138.0	0.7809	0.9297
0.55	150.0	-0.4511	0.9339
0.55	198.0	-0.0163	0.8424
0.55	210.0	-0.4904	0.869
0.55	222.0	-1.0355	0.8139
0.55	258.0	-2.0044	0.6531
0.55	270.0	0.0607	0.7119
0.55	282.0	0.4484	0.9341
0.65	78.0	-0.2053	0.8928
0.65	114.0	-0.375	0.9565
0.65	126.0	-0.904	0.6986
0.65	138.0	0.0536	0.811
0.65	150.0	0.3568	0.8847
0.65	198.0	-0.3451	0.9129
0.65	210.0	-0.5282	0.781
0.65	222.0	-1.3135	0.6832
0.65	234.0	0.2801	0.9201
0.65	270.0	-1.2452	0.7312
0.65	282.0	-1.0	0.7111
0.75	66.0	-0.5715	0.9118
0.75	78.0	-0.861	0.9625
0.75	198.0	-0.7407	0.7446
0.75	210.0	0.985	0.6537
0.75	222.0	-0.1037	0.7818
0.75	234.0	0.7272	0.7677
0.75	246.0	0.4495	0.8825
0.75	270.0	0.9446	0.5947
0.75	282.0	0.7028	0.6458
0.85	114.0	0.2898	0.75
0.85	126.0	-0.3556	0.8148
0.85	198.0	-0.1848	0.8069
0.85	210.0	-1.0729	0.6379
0.85	222.0	-1.4082	0.7099
0.85	234.0	-0.4811	0.8068
0.85	258.0	0.5106	0.8178
0.85	270.0	-0.234	0.7461
0.85	282.0	-1.4754	0.7224

CLAS Physics Database