Measurement E151M1687

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:	0.0011
Q²:	0.0023 GeV²
W:	1655.0 GeV
E_beam:	1.3383 GeV
ε:	0.4846

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.75	222.0	-0.9471	1.2375
0.55	150.0	-0.9606	0.9339
0.65	222.0	0.7548	0.979
0.75	210.0	1.0587	0.8582
0.75	222.0	0.0214	0.9193

CLAS Physics Database