Measurement E151M2375

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:	0.1095
Q²:	0.205 GeV²
W:	1745.0 GeV
E_beam:	2.999 GeV
ε:	0.8514

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty	syst. uncert.
0.55	102.0	-0.1189	1.0703	0.0312
0.55	114.0	-1.4408	1.0264	0.1087
0.55	126.0	-0.6002	1.077	0.0529
0.65	114.0	-3.2343	3.2343	0.2364
0.65	126.0	-1.2001	0.9834	0.092
0.65	210.0	-0.135	0.9347	0.0316
0.65	222.0	-2.7081	0.7179	0.1986
0.65	294.0	-0.6061	0.9218	0.0532
0.75	78.0	-2.1776	0.9293	0.1607
0.75	90.0	0.3662	1.0277	0.0401
0.75	126.0	-1.3357	0.9377	0.1014
0.75	138.0	-2.4374	0.9492	0.1793
0.75	198.0	-1.3977	0.8996	0.1057
0.75	210.0	0.0787	0.8512	0.0305
0.75	222.0	0.7361	0.875	0.0612
0.75	234.0	1.1881	0.9219	0.0912
0.75	246.0	-1.8984	0.8394	0.1409
0.75	282.0	-0.1021	0.9133	0.0309
0.85	78.0	-0.684	0.8713	0.058
0.85	90.0	-0.3158	0.7661	0.0377
0.85	102.0	-0.5361	0.7774	0.0491
0.85	114.0	-1.5165	0.9496	0.114
0.85	174.0	-1.3216	0.9776	0.1004
0.85	186.0	-0.5166	0.8162	0.048
0.85	198.0	-0.5423	0.7592	0.0495
0.85	210.0	0.8569	0.8175	0.069
0.85	222.0	-0.309	0.7781	0.0374
0.85	234.0	0.1797	0.744	0.0327
0.85	246.0	-0.0541	0.9763	0.0303
0.95	174.0	-1.1104	0.9903	0.0859
0.95	186.0	-0.9101	0.955	0.0725
0.95	198.0	-0.0253	0.7724	0.0301
0.95	210.0	-0.183	0.6875	0.0328
0.95	222.0	-0.5993	0.7014	0.0528
0.95	234.0	0.3878	0.8838	0.0411
0.95	246.0	-1.4222	0.6938	0.1074
0.95	258.0	0.5686	0.8509	0.051

CLAS Physics Database