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	syst. uncert.
0.45	270.0	-0.2301	1.0465	0.0343
0.45	282.0	-0.7258	0.974	0.0606
0.55	90.0	0.1932	0.9594	0.0331
0.55	102.0	-0.4815	0.934	0.046
0.65	102.0	0.1235	0.8602	0.0313
0.65	114.0	0.495	0.8987	0.0468
0.65	198.0	-0.2708	1.0831	0.0359
0.65	294.0	-0.151	0.8475	0.0319
0.75	78.0	0.4393	0.9009	0.0438
0.75	126.0	0.4283	1.0121	0.0432
0.75	198.0	0.4398	1.0142	0.0438
0.75	210.0	0.4788	1.0277	0.0459
0.75	222.0	0.2547	0.9974	0.0352
0.75	234.0	-0.3308	0.8723	0.0384
0.75	246.0	1.0865	0.9152	0.0843
0.85	66.0	-0.3184	0.9094	0.0379
0.85	78.0	0.1558	0.7513	0.0321
0.85	90.0	-0.8361	0.8362	0.0676
0.85	102.0	0.9489	0.8087	0.0751
0.85	186.0	-0.0403	0.9528	0.0301
0.85	198.0	-0.6905	0.7361	0.0584
0.85	210.0	-0.2821	0.8106	0.0363
0.85	222.0	-1.4085	0.7134	0.1065
0.85	234.0	0.7386	0.8083	0.0614
0.85	246.0	-1.8283	0.7114	0.1359
0.85	258.0	-0.7089	0.8625	0.0595
0.95	114.0	1.208	0.8708	0.0926
0.95	174.0	-0.7701	0.8919	0.0634
0.95	186.0	1.5322	0.8522	0.1151
0.95	198.0	0.9775	0.757	0.077
0.95	210.0	-0.5891	0.7021	0.0522
0.95	222.0	-1.3404	0.5974	0.1017
0.95	234.0	-0.7844	0.6393	0.0643
0.95	246.0	-0.6562	0.6388	0.0562
0.95	258.0	1.0233	0.8299	0.08
0.95	270.0	0.3036	0.7035	0.0372

CLAS Physics Database