Measurement E151M2364

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:	0.1572
Q²:	0.2915 GeV²
W:	1715.0 GeV
E_beam:	2.999 GeV
ε:	0.8472

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.45	270.0	-0.2301	1.0465
0.45	282.0	-0.7258	0.974
0.55	90.0	0.1932	0.9594
0.55	102.0	-0.4815	0.934
0.65	102.0	0.1235	0.8602
0.65	114.0	0.495	0.8987
0.65	198.0	-0.2708	1.0831
0.65	294.0	-0.151	0.8475
0.75	78.0	0.4393	0.9009
0.75	126.0	0.4283	1.0121
0.75	198.0	0.4398	1.0142
0.75	210.0	0.4788	1.0277
0.75	222.0	0.2547	0.9974
0.75	234.0	-0.3308	0.8723
0.75	246.0	1.0865	0.9152
0.85	66.0	-0.3184	0.9094
0.85	78.0	0.1558	0.7513
0.85	90.0	-0.8361	0.8362
0.85	102.0	0.9489	0.8087
0.85	186.0	-0.0403	0.9528
0.85	198.0	-0.6905	0.7361
0.85	210.0	-0.2821	0.8106
0.85	222.0	-1.4085	0.7134
0.85	234.0	0.7386	0.8083
0.85	246.0	-1.8283	0.7114
0.85	258.0	-0.7089	0.8625
0.95	114.0	1.208	0.8708
0.95	174.0	-0.7701	0.8919
0.95	186.0	1.5322	0.8522
0.95	198.0	0.9775	0.757
0.95	210.0	-0.5891	0.7021
0.95	222.0	-1.3404	0.5974
0.95	234.0	-0.7844	0.6393
0.95	246.0	-0.6562	0.6388
0.95	258.0	1.0233	0.8299
0.95	270.0	0.3036	0.7035

CLAS Physics Database