Measurement E151M1164

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:	0.0737
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_UL	uncertainty
0.65	54.0	0.1008	0.9325
0.65	114.0	-0.4913	0.8014
0.65	186.0	-0.6118	0.8818
0.65	198.0	0.3375	0.9313
0.65	222.0	1.2324	1.0837
0.65	282.0	-0.2316	0.6952
0.65	294.0	-0.8601	0.7666
0.75	102.0	-0.3865	0.7881
0.75	186.0	-1.0028	0.7741
0.75	198.0	-0.1481	0.8003
0.75	210.0	-0.4232	0.7263
0.75	222.0	0.1478	0.856
0.75	234.0	0.7386	0.8906
0.75	270.0	0.348	0.8129
0.75	282.0	-1.1721	0.5557
0.75	294.0	0.1703	0.8731
0.85	90.0	1.0447	0.7618
0.85	102.0	-0.242	0.5632
0.85	114.0	-0.3219	0.5884
0.85	126.0	-0.4502	0.8408
0.85	174.0	-2.0316	0.5727
0.85	186.0	-0.4985	0.7205
0.85	198.0	-0.0736	0.6569
0.85	210.0	-0.3079	0.6625
0.85	222.0	-0.2746	0.6116
0.85	234.0	1.1699	0.9488
0.85	246.0	1.454	0.8573
0.95	198.0	0.4656	0.9028
0.95	210.0	0.1563	0.6961
0.95	222.0	0.6409	0.8134
0.95	234.0	-0.143	0.7834

CLAS Physics Database