Measurement E151M2917

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_LU
ε_L:	0.3024
Q²:	0.0415 GeV²
W:	1235.0 GeV
E_beam:	1.9889 GeV
ε:	0.9735

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LU	uncertainty	syst. uncert.
0.55	78.0	0.2422	0.2397	0.0304
0.55	90.0	0.0649	0.2595	0.03
0.65	90.0	0.0082	0.238	0.03
0.65	258.0	-0.255	0.2152	0.0304
0.65	270.0	-0.4388	0.2007	0.0313
0.75	126.0	0.3648	0.229	0.0309
0.75	246.0	0.328	0.2382	0.0307
0.75	258.0	-0.1053	0.1842	0.0301
0.75	270.0	-0.2555	0.2203	0.0304
0.85	126.0	0.0945	0.2568	0.0301
0.85	138.0	0.4118	0.2114	0.0311
0.85	150.0	-0.2182	0.207	0.0303
0.85	174.0	0.3148	0.2404	0.0307
0.85	246.0	-0.2089	0.2646	0.0303
0.95	150.0	0.1562	0.2746	0.0302
0.95	162.0	-0.0329	0.257	0.03

CLAS Physics Database