Measurement E151M2385

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:	0.0635
Q²:	0.1205 GeV²
W:	1775.0 GeV
E_beam:	2.999 GeV
ε:	0.8551

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.45	126.0	0.6967	0.9906
0.45	270.0	1.0522	1.0176
0.45	282.0	-0.4507	0.9345
0.55	126.0	0.9183	1.1419
0.55	138.0	0.0928	1.1674
0.55	210.0	-1.0891	0.9502
0.65	114.0	0.5199	0.9056
0.65	126.0	0.3909	0.9375
0.65	138.0	-0.7618	1.0079
0.65	186.0	-2.5485	1.1079
0.65	198.0	1.1578	1.1124
0.65	210.0	-1.6798	0.8338
0.65	222.0	-1.2452	0.9451
0.65	270.0	0.7773	0.9298
0.65	282.0	0.9377	0.7814
0.65	294.0	0.1066	0.9652
0.75	90.0	-0.5914	1.1032
0.75	102.0	0.4072	0.9672
0.75	126.0	0.7518	1.1465
0.75	138.0	-2.6991	0.998
0.75	186.0	-1.1043	1.0877
0.75	198.0	-0.2911	0.8508
0.75	210.0	0.4539	0.7926
0.75	222.0	-1.4231	0.8638
0.75	234.0	1.1204	1.1734
0.75	258.0	-0.927	0.9366
0.75	270.0	-0.9261	0.8745
0.75	282.0	-1.3292	0.6174
0.75	294.0	-1.4727	0.8577
0.85	90.0	0.0112	0.7051
0.85	102.0	-1.0869	0.6856
0.85	114.0	0.1663	0.6845
0.85	126.0	-1.3453	0.7963
0.85	174.0	0.6814	0.7565
0.85	186.0	-0.2778	0.7293
0.85	198.0	-1.0404	0.7552
0.85	210.0	-0.7114	0.6647
0.85	222.0	0.8272	0.7229
0.85	234.0	0.0765	0.7941
0.85	246.0	-1.1119	0.7957
0.95	114.0	-1.8396	0.89
0.95	186.0	-0.2009	0.8644
0.95	198.0	-0.9785	0.9322
0.95	210.0	1.7391	0.7844
0.95	222.0	0.223	0.8638
0.95	234.0	0.7477	1.014
0.95	246.0	1.2585	0.8835

CLAS Physics Database