Measurement E151M1823

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:	0.2118
Q²:	0.1435 GeV²
W:	1475.0 GeV
E_beam:	1.9889 GeV
ε:	0.8676

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.15	294.0	0.1852	0.782
0.25	66.0	-0.0251	0.7135
0.25	78.0	1.5259	0.6754
0.25	282.0	-0.5601	0.6884
0.25	294.0	-1.5008	0.6213
0.25	306.0	-1.1909	0.637
0.35	66.0	0.7705	0.6783
0.35	78.0	-0.2532	0.6713
0.35	282.0	-1.3381	0.6482
0.35	294.0	0.7755	0.5473
0.45	66.0	0.2228	0.8484
0.45	78.0	-0.4573	0.6102
0.45	270.0	0.2688	0.7905
0.45	282.0	0.7587	0.6165
0.45	294.0	0.2214	0.5077
0.55	66.0	-1.151	0.8108
0.55	102.0	0.3666	0.8652
0.55	114.0	-1.0127	0.6587
0.55	258.0	0.5096	0.8522
0.55	282.0	0.4322	0.7082
0.55	306.0	-0.5674	0.6746
0.65	102.0	0.7475	0.6517
0.65	114.0	-0.2964	0.6142
0.65	126.0	-0.133	0.7047
0.65	138.0	1.5393	0.7169
0.65	234.0	1.0049	0.71
0.65	246.0	-0.1021	0.6025
0.65	258.0	-0.7407	0.7895
0.65	270.0	-0.7315	0.7784
0.65	294.0	-0.4291	0.685
0.65	306.0	-0.163	0.7021
0.75	102.0	-0.171	0.6181
0.75	114.0	0.069	0.4991
0.75	126.0	0.6141	0.5724
0.75	138.0	1.132	0.6816
0.75	210.0	0.3608	0.6391
0.75	222.0	0.4765	0.6992
0.75	234.0	-0.0507	0.5644
0.75	246.0	-0.3492	0.5079
0.75	258.0	-0.4745	0.617
0.75	270.0	0.661	0.7762
0.75	294.0	0.072	0.7375
0.85	78.0	-0.2788	0.6997
0.85	90.0	-0.4973	0.6603
0.85	102.0	0.4748	0.6656
0.85	114.0	-0.1572	0.6734
0.85	126.0	0.1489	0.734
0.85	138.0	1.1502	0.5121
0.85	150.0	0.094	0.8232
0.85	198.0	1.5775	0.6975
0.85	210.0	0.4791	0.7403
0.85	222.0	-0.2085	0.7577
0.85	234.0	0.6129	0.5182
0.85	246.0	1.1837	0.5019
0.85	258.0	0.3467	0.5604
0.85	270.0	0.2298	0.6299
0.95	90.0	0.3433	0.7265
0.95	210.0	-0.2598	0.6695
0.95	222.0	0.4374	0.5709
0.95	234.0	0.7186	0.657
0.95	246.0	1.0994	0.4402
0.95	258.0	0.8291	0.504
0.95	270.0	-0.0481	0.4993

CLAS Physics Database