Measurement E151M1638

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:	0.0878
Q²:	0.101 GeV²
W:	1535.0 GeV
E_beam:	1.3383 GeV
ε:	0.6138

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty	syst. uncert.
0.55	138.0	-0.0428	0.9206	0.0301
0.55	222.0	-1.1532	0.9423	0.0753
0.55	234.0	-0.3262	0.9022	0.0358
0.55	246.0	-0.1829	0.7758	0.0324
0.65	138.0	-0.6113	0.94	0.0474
0.65	162.0	-1.3088	0.9657	0.084
0.65	222.0	1.6526	0.8367	0.1007
0.65	234.0	0.4022	0.6247	0.0843
0.65	246.0	0.3578	0.702	0.0368
0.75	126.0	0.2865	0.8735	0.0346
0.75	138.0	-1.0334	0.7695	0.0684
0.75	150.0	0.418	0.7739	0.0391
0.75	234.0	-0.4901	0.6489	0.0748
0.75	246.0	0.2127	0.5562	0.0493
0.75	258.0	-0.1588	0.5704	0.0591
0.85	210.0	0.2128	1.2081	0.0325
0.85	222.0	-0.6688	0.6582	0.0499
0.85	234.0	0.3553	0.725	0.0375
0.85	246.0	0.3049	0.5068	0.0836
0.85	258.0	0.0306	0.6519	0.0556
0.95	114.0	0.7139	1.0793	0.0512

CLAS Physics Database