Measurement E151M1984

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:	0.8512
Q²:	0.348 GeV²
W:	1295.0 GeV
E_beam:	2.2596 GeV
ε:	0.91

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty	syst. uncert.
0.85	258.0	0.1586	0.6678	0.0317
0.85	270.0	-0.1229	0.6292	0.031
0.75	282.0	1.8498	1.5755	0.1726
0.85	90.0	4.6034	1.9075	0.4241
0.85	306.0	0.7898	1.8888	0.0785

CLAS Physics Database