Measurement E151M1683

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:	0.0266
Q²:	0.0496 GeV²
W:	1625.0 GeV
E_beam:	1.3383 GeV
ε:	0.499

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.55	222.0	-0.5684	1.0172
0.65	222.0	-1.6507	0.8668
0.55	234.0	0.2794	1.2141
0.75	222.0	0.0714	1.1316
0.75	234.0	-2.215	0.7443
0.85	222.0	0.6516	1.2373

CLAS Physics Database