Measurement E151M2076

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:	0.2792
Q²:	0.2445 GeV²
W:	1505.0 GeV
E_beam:	2.2596 GeV
ε:	0.8607

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.65	102.0	0.0975	0.6037
0.75	102.0	-0.4967	0.7027
0.75	234.0	-1.206	0.6698
0.85	78.0	-0.5274	0.7404
0.85	234.0	-0.5622	0.8702
0.85	270.0	-1.232	0.6831
0.65	126.0	-1.0956	1.9049
0.75	102.0	-0.7283	1.8335
0.75	222.0	0.5327	1.7498
0.75	234.0	2.7309	1.4544
0.85	234.0	2.4642	1.9765
0.85	258.0	-0.3026	1.7887

CLAS Physics Database