Measurement E151M1188

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:	0.0598
Q²:	0.1435 GeV²
W:	1835.0 GeV
E_beam:	2.999 GeV
ε:	0.8185

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty
0.75	270.0	1.7076	1.0451
0.85	102.0	-0.0782	0.7698
0.85	114.0	-1.3065	0.6138
0.85	126.0	0.2377	0.9967
0.85	174.0	-0.4087	0.8286
0.85	186.0	-1.7857	0.6557
0.85	198.0	-0.767	0.7747
0.85	210.0	0.6883	0.9309
0.85	222.0	-0.3414	0.8615
0.85	234.0	-0.6324	0.8541

CLAS Physics Database