Measurement E151M125

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:	0.0147
Q²:	0.0059 GeV²
W:	1385.0 GeV
E_beam:	1.0539 GeV
ε:	0.7684

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty
0.55	42.0	0.2001	0.8229
0.55	54.0	0.6729	0.8442
0.55	222.0	0.7978	0.8364
0.55	234.0	0.0205	0.616
0.55	246.0	0.4626	0.7916
0.65	54.0	1.7201	0.7584
0.65	222.0	-0.8063	0.6889
0.65	234.0	0.0382	0.6763
0.65	246.0	-1.3015	0.5207
0.75	222.0	-0.2634	0.6344
0.75	234.0	0.5231	0.6973
0.75	246.0	-0.636	0.6677
0.85	234.0	0.3413	0.7549
0.85	246.0	0.328	0.7672

CLAS Physics Database