Measurement E151M2134

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:	0.0651
Q²:	0.0844 GeV²
W:	1655.0 GeV
E_beam:	2.2596 GeV
ε:	0.826

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty	syst. uncert.
0.55	126.0	-0.4633	1.1123	0.0521
0.65	222.0	0.5	1.1439	0.0549
0.85	102.0	0.6717	1.1869	0.0686
0.85	126.0	0.6865	1.4553	0.0699
0.45	270.0	-0.4596	0.7459	0.0424
0.55	270.0	-0.4078	0.7746	0.04
0.65	114.0	-0.8608	0.7493	0.0635
0.65	138.0	1.0194	0.8189	0.0728
0.65	222.0	-0.6375	0.8365	0.0512
0.75	126.0	0.7066	0.8295	0.0549
0.75	210.0	-1.3566	0.8744	0.0932
0.75	282.0	0.0715	0.6475	0.0304
0.85	114.0	-0.7987	0.7971	0.06
0.85	210.0	-1.1437	0.9767	0.0802
0.85	222.0	-0.2449	0.9216	0.034

CLAS Physics Database