Measurement E151M1603

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_LL
ε_L:	0.1626
Q²:	0.1435 GeV²
W:	1475.0 GeV
E_beam:	1.3383 GeV
ε:	0.666

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.65	126.0	-1.3604	0.8075
0.75	258.0	-0.5561	0.8708
0.95	270.0	-0.1218	0.7376
0.65	234.0	1.9439	0.8702
0.75	258.0	1.1033	0.81
0.85	246.0	1.1376	1.0504
0.85	258.0	0.9111	0.9892
0.95	258.0	0.7551	0.8652

CLAS Physics Database