Measurement E151M2198

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:	0.9758
Q²:	0.496 GeV²
W:	1295.0 GeV
E_beam:	2.999 GeV
ε:	0.9334

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.45	282.0	0.8852	0.7414
0.55	66.0	2.4594	2.4594
0.55	78.0	0.571	0.7685
0.55	90.0	0.8813	0.742
0.55	270.0	-0.8103	0.8005
0.55	294.0	-0.0793	0.8174
0.65	66.0	0.8134	0.7092
0.65	78.0	-1.9716	0.6094
0.65	90.0	0.7464	0.6832
0.65	102.0	-0.3008	0.716
0.65	270.0	0.9067	0.7486
0.65	282.0	-0.1736	0.6462
0.65	294.0	0.3029	0.7
0.65	306.0	0.8209	0.6874
0.75	66.0	-0.5592	0.6888
0.75	78.0	0.3597	0.6657
0.75	90.0	-0.2278	0.6569
0.75	102.0	0.2562	0.9204
0.75	258.0	-1.0333	0.7711
0.75	270.0	0.4554	0.6439
0.75	282.0	-0.1313	0.6505
0.75	294.0	1.5043	0.6109
0.75	306.0	1.3725	0.5685
0.75	318.0	-1.1027	0.687
0.85	54.0	1.2286	0.6176
0.85	66.0	-0.973	0.5739
0.85	78.0	-0.0201	0.6579
0.85	90.0	-0.0483	0.7068
0.85	102.0	0.6995	0.7325
0.85	114.0	1.0742	0.8102
0.85	246.0	-0.6024	0.7571
0.85	258.0	1.0156	0.5452
0.85	270.0	0.4511	0.5556
0.85	282.0	0.7582	0.603
0.85	294.0	-0.04	0.6922
0.85	306.0	0.7286	0.6228
0.85	318.0	0.5349	0.697
0.85	330.0	2.8698	2.8698
0.95	78.0	0.4974	0.6912
0.95	258.0	0.2583	0.6807
0.95	306.0	0.0938	0.5808

CLAS Physics Database