Measurement E151M1667

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:	0.0243
Q²:	0.0348 GeV²
W:	1595.0 GeV
E_beam:	1.3383 GeV
ε:	0.5722

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty	syst. uncert.
0.65	210.0	-0.8823	1.1853	0.0594
0.65	222.0	-0.8248	1.1854	0.0566
0.75	222.0	0.076	1.1032	0.0303
0.75	234.0	0.141	1.0738	0.0311
0.85	222.0	-1.9931	0.7987	0.1197
0.85	234.0	-0.5949	1.1694	0.0458
0.85	246.0	0.2198	0.9576	0.0326
0.65	234.0	-0.8595	0.8263	0.0596
0.75	234.0	-2.101	0.764	0.1294
0.85	222.0	0.2888	0.8259	0.0346
0.85	234.0	-0.4614	0.7889	0.0408

CLAS Physics Database