Measurement E151M1350

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:	0.0247
Q²:	0.0101 GeV²
W:	1385.0 GeV
E_beam:	1.0539 GeV
ε:	0.7635

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty	syst. uncert.
0.35	42.0	-0.4186	0.9894	0.0559
0.35	54.0	-0.5145	0.8802	0.0653
0.45	42.0	-0.7544	0.6888	0.0902
0.45	54.0	1.6209	0.5885	0.1853
0.45	222.0	-1.2544	0.8827	0.1446
0.45	234.0	-0.9116	0.8273	0.1071
0.45	246.0	-0.2054	0.9711	0.0379
0.55	18.0	-1.9469	0.7939	0.2216
0.55	30.0	0.9013	0.7969	0.106
0.55	42.0	-1.5934	0.5493	0.1822
0.55	54.0	0.5067	0.6953	0.0645
0.55	222.0	-0.3549	0.7417	0.05
0.55	234.0	-0.2363	0.6966	0.0401
0.55	246.0	0.2526	0.7023	0.0414
0.65	30.0	-0.3173	0.9321	0.0467
0.65	42.0	0.1845	0.829	0.0365
0.65	54.0	1.0562	0.6686	0.1228
0.65	138.0	0.7731	0.8679	0.0922
0.65	150.0	-0.5306	0.784	0.0669
0.65	162.0	0.9093	0.7673	0.1069
0.65	210.0	-1.031	0.749	0.1201
0.65	222.0	-0.4045	0.6177	0.0546
0.65	234.0	-0.395	0.5615	0.0537
0.65	246.0	0.3967	0.5459	0.0539
0.75	138.0	-1.2184	0.8713	0.1407
0.75	150.0	0.8087	0.9107	0.096
0.75	162.0	-0.8447	0.8874	0.0999
0.75	174.0	0.7576	0.9325	0.0906
0.75	210.0	0.0703	0.9172	0.031
0.75	222.0	-0.2264	0.6242	0.0394
0.75	234.0	0.541	0.5711	0.068
0.75	246.0	-0.4549	0.5666	0.0594
0.75	258.0	-0.9766	0.8839	0.1142
0.85	222.0	0.4689	0.687	0.0608
0.85	234.0	0.9786	0.5385	0.1144
0.85	246.0	-0.5576	0.5724	0.0697
0.85	258.0	0.5269	0.7602	0.0666

CLAS Physics Database