Measurement E151M1256

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:	0.4767
Q²:	0.0844 GeV²
W:	1235.0 GeV
E_beam:	1.0539 GeV
ε:	0.8524

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.05	42.0	-0.5777	0.5723
0.15	30.0	-0.9596	0.601
0.15	42.0	0.354	0.5346
0.15	54.0	-0.8819	0.6921
0.25	42.0	-0.0382	0.6371
0.35	282.0	-0.7751	0.5473
0.35	294.0	0.4213	0.5789
0.45	270.0	-0.0629	0.4522
0.45	282.0	-0.0463	0.4588
0.45	294.0	-1.0482	0.4502
0.55	258.0	-0.5162	0.5271
0.55	270.0	0.5343	0.3498
0.55	282.0	-0.0233	0.3258
0.55	294.0	0.51	0.4884
0.65	246.0	0.46	0.6135
0.65	258.0	-0.435	0.3702
0.65	270.0	0.1587	0.3197
0.65	282.0	0.0918	0.3574
0.65	294.0	-0.0693	0.4197
0.75	246.0	-0.5028	0.4441
0.75	258.0	-0.4954	0.3919
0.75	270.0	0.191	0.3287
0.75	282.0	-0.324	0.3824
0.75	294.0	-0.8064	0.4927
0.85	114.0	0.9868	0.4955
0.85	126.0	0.1682	0.5364
0.85	138.0	0.6898	0.4001
0.85	150.0	-0.2873	0.5262
0.85	162.0	0.8179	0.3914
0.85	174.0	0.0472	0.433
0.85	186.0	0.5018	0.4993
0.85	198.0	-0.5116	0.4333
0.85	210.0	0.5597	0.4607
0.85	222.0	0.6544	0.5684
0.85	246.0	-0.0962	0.5066
0.85	258.0	0.3764	0.5626
0.85	270.0	-0.5899	0.4245
0.85	282.0	-0.0543	0.4088
0.95	126.0	-0.2912	0.4411
0.95	138.0	0.5803	0.4049
0.95	150.0	0.4311	0.3234
0.95	162.0	-0.1489	0.3586
0.95	174.0	0.3066	0.3527
0.95	186.0	-0.1381	0.4067
0.95	198.0	0.9431	0.3588
0.95	210.0	-0.2249	0.3894
0.95	222.0	0.1609	0.4475
0.95	234.0	0.0103	0.4504

CLAS Physics Database