Measurement E151M3048

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_LU
ε_L:	0.302
Q²:	0.2445 GeV²
W:	1475.0 GeV
E_beam:	1.9889 GeV
ε:	0.8314

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LU	uncertainty	syst. uncert.
0.25	282.0	0.3237	0.2353	0.0307
0.35	78.0	-0.2449	0.2451	0.0304
0.35	282.0	-0.1238	0.254	0.0301
0.35	294.0	0.0516	0.2335	0.03
0.45	282.0	-0.0916	0.2604	0.0301
0.55	102.0	0.3556	0.2346	0.0308
0.55	306.0	0.0184	0.2878	0.03
0.65	90.0	-0.0514	0.2752	0.03
0.65	102.0	-0.2899	0.2028	0.0306
0.65	114.0	0.7227	0.2291	0.0333
0.65	126.0	0.5579	0.2022	0.032
0.65	234.0	-0.2856	0.2381	0.0305
0.65	246.0	0.1942	0.2766	0.0303
0.75	90.0	0.4996	0.2074	0.0316
0.75	102.0	0.2749	0.2141	0.0305
0.75	114.0	0.0839	0.2278	0.03
0.75	126.0	0.5856	0.1793	0.0322
0.75	222.0	-0.1511	0.2746	0.0302
0.75	234.0	0.1004	0.2376	0.0301
0.75	246.0	-0.2064	0.2674	0.0303
0.75	258.0	0.0443	0.2298	0.03
0.75	270.0	-0.4034	0.2375	0.0311
0.85	66.0	0.1875	0.2689	0.0302
0.85	78.0	-0.0035	0.2516	0.03
0.85	102.0	0.6602	0.2119	0.0328
0.85	114.0	0.2888	0.2045	0.0306
0.85	126.0	-0.332	0.2294	0.0307
0.85	138.0	0.3108	0.229	0.0306
0.85	222.0	0.0152	0.2275	0.03
0.85	234.0	-0.0591	0.2091	0.03
0.85	246.0	-0.3446	0.2132	0.0308
0.85	258.0	-0.0752	0.2065	0.03
0.85	270.0	-0.4518	0.1882	0.0313
0.95	222.0	0.1791	0.267	0.0302
0.95	258.0	-0.3039	0.2439	0.0306
0.95	270.0	-0.1888	0.2808	0.0302
0.95	282.0	0.0309	0.2305	0.03
0.95	294.0	0.0345	0.2433	0.03

CLAS Physics Database