Measurement E151M1381

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:	0.1123
Q²:	0.0707 GeV²
W:	1415.0 GeV
E_beam:	1.0539 GeV
ε:	0.6408

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.25	42.0	0.9514	0.9785
0.35	30.0	1.5318	0.8983
0.35	42.0	1.3494	0.9073
0.35	54.0	-0.8867	0.9242
0.45	42.0	-0.8083	0.7986
0.45	246.0	-0.6772	0.9269
0.55	234.0	0.1902	0.7466
0.55	246.0	0.8095	0.7161
0.55	258.0	0.3536	0.8023
0.65	150.0	-1.0665	0.8639
0.65	210.0	0.8171	0.8938
0.65	222.0	0.8405	0.7664
0.65	234.0	0.2498	0.5921
0.65	246.0	-0.8223	0.6074
0.65	258.0	0.5761	0.6536
0.65	270.0	0.4178	0.8559
0.75	126.0	0.4865	0.9075
0.75	138.0	0.9277	0.7781
0.75	150.0	0.4105	0.8751
0.75	162.0	1.3732	0.7954
0.75	174.0	-0.796	0.9125
0.75	222.0	1.1852	0.8625
0.75	234.0	-0.2981	0.6954
0.75	246.0	-0.0887	0.6102
0.75	258.0	0.7048	0.5161
0.75	270.0	-0.1442	0.7376
0.85	150.0	0.1118	0.9365
0.85	234.0	0.7876	0.6588
0.85	246.0	0.1667	0.5614
0.85	258.0	-0.4616	0.5185
0.85	270.0	-0.2547	0.6325
0.95	150.0	0.4998	0.7388
0.95	246.0	0.3866	0.6619
0.95	258.0	0.8957	0.6237
0.95	270.0	-0.0812	0.6666

CLAS Physics Database