Measurement E151M2386

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:	0.0737
Q²:	0.1435 GeV²
W:	1775.0 GeV
E_beam:	2.999 GeV
ε:	0.8502

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.65	54.0	1.8242	0.9492
0.65	114.0	-0.6752	0.9696
0.65	186.0	-1.1208	1.0925
0.65	198.0	-0.5675	1.0086
0.65	222.0	-0.2296	1.148
0.65	282.0	-1.3215	0.7884
0.65	294.0	1.8216	0.9449
0.75	102.0	-0.8846	0.948
0.75	186.0	0.6203	1.0296
0.75	198.0	-1.5903	0.8953
0.75	210.0	0.1271	0.8834
0.75	222.0	1.4468	0.9596
0.75	234.0	0.1645	0.9765
0.75	270.0	1.1974	0.8938
0.75	282.0	-0.4675	0.7684
0.75	294.0	-1.0535	0.9401
0.85	90.0	-0.915	0.8055
0.85	102.0	0.0983	0.672
0.85	114.0	-0.1541	0.7092
0.85	126.0	-0.5672	1.0082
0.85	174.0	1.3068	0.9417
0.85	186.0	-0.1705	0.8861
0.85	198.0	-0.6368	0.7541
0.85	210.0	1.8258	0.7193
0.85	222.0	-0.2715	0.7282
0.85	234.0	-0.5171	0.9908
0.85	246.0	-0.2087	0.9157
0.95	198.0	0.2033	0.9915
0.95	210.0	-0.2698	0.7878
0.95	222.0	-0.1966	0.8803
0.95	234.0	-0.148	0.9184

CLAS Physics Database