Measurement E151M122

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:	0.2731
Q²:	0.1435 GeV²
W:	1355.0 GeV
E_beam:	1.0539 GeV
ε:	0.6529

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty
0.55	258.0	1.7273	0.7353
0.55	270.0	0.4823	0.8616
0.65	246.0	0.7367	0.8337
0.65	258.0	1.1664	0.8401
0.65	270.0	0.0259	0.7947
0.75	138.0	1.642	0.9954
0.75	258.0	-0.6179	0.6555
0.75	270.0	-0.428	0.7232
0.75	282.0	0.8599	0.7457
0.85	126.0	-0.2118	0.8044
0.85	150.0	0.151	0.7965
0.85	246.0	-0.5412	0.7178
0.85	258.0	0.2167	0.6867
0.85	270.0	0.5675	0.6577
0.85	282.0	-0.4741	0.567

CLAS Physics Database