Measurement E151M1175

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_UL
ε_L:	0.0571
Q²:	0.1205 GeV²
W:	1805.0 GeV
E_beam:	2.999 GeV
ε:	0.8401

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty	syst. uncert.
0.55	186.0	-0.4031	0.8992	0.042
0.55	210.0	1.4613	1.0728	0.1109
0.65	138.0	-0.1658	0.8988	0.0324
0.65	186.0	0.0385	1.0106	0.0301
0.65	198.0	-0.6271	0.7349	0.0548
0.65	210.0	0.2229	0.8776	0.0341
0.75	102.0	0.2276	0.8084	0.0343
0.75	114.0	-0.7889	0.7757	0.065
0.75	126.0	2.4618	1.1492	0.1824
0.75	198.0	-0.783	0.7886	0.0646
0.75	210.0	0.7321	0.8041	0.0613
0.75	222.0	-0.5198	0.7425	0.0484
0.75	270.0	-0.1025	0.8681	0.0309
0.75	282.0	0.2204	0.8102	0.0341
0.85	90.0	-0.3526	0.7049	0.0396
0.85	102.0	0.0331	0.6859	0.0301
0.85	114.0	0.1272	0.6812	0.0314
0.85	126.0	-0.8685	0.7816	0.0702
0.85	174.0	0.264	0.925	0.0357
0.85	186.0	0.2748	0.7888	0.0361
0.85	198.0	0.3688	0.6597	0.0403
0.85	210.0	0.7382	0.7966	0.0617
0.85	222.0	0.4923	0.7224	0.0468
0.85	234.0	-0.8643	0.613	0.0699
0.95	186.0	-0.3259	0.7377	0.0383
0.95	198.0	0.2965	0.8061	0.037
0.95	210.0	-0.8949	0.6206	0.072
0.95	234.0	-1.303	0.6239	0.0999

CLAS Physics Database