Measurement E151M1997

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:	0.7386
Q²:	0.348 GeV²
W:	1325.0 GeV
E_beam:	2.2596 GeV
ε:	0.9017

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty	syst. uncert.
0.85	246.0	-1.1639	1.6504	0.1111
0.75	258.0	0.0214	0.6392	0.03
0.85	78.0	0.2499	0.6772	0.0341
0.85	102.0	1.2776	0.6983	0.0884
0.85	270.0	0.0982	0.697	0.0307
0.85	294.0	-0.4416	0.5596	0.0415

CLAS Physics Database