Measurement E151M2151

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:	0.0312
Q²:	0.0496 GeV²
W:	1715.0 GeV
E_beam:	2.2596 GeV
ε:	0.7952

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.75	270.0	-0.8116	0.7494
0.75	282.0	-0.2345	0.5098
0.85	114.0	-1.4827	0.9969
0.85	126.0	0.9336	0.7808
0.85	210.0	-1.9522	0.793

CLAS Physics Database