Measurement E151M2922

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:	0.6139
Q²:	0.101 GeV²
W:	1235.0 GeV
E_beam:	1.9889 GeV
ε:	0.9604

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LU	uncertainty	syst. uncert.
0.35	78.0	-0.1221	0.2594	0.0301
0.45	66.0	0.0234	0.2833	0.03
0.45	78.0	-0.0647	0.1782	0.03
0.45	282.0	0.2983	0.2514	0.0306
0.55	78.0	0.1574	0.1929	0.0302
0.55	270.0	-0.0001	0.2186	0.03
0.55	282.0	0.3524	0.1858	0.0308
0.65	258.0	-0.3341	0.2563	0.0307
0.65	270.0	-0.0085	0.1787	0.03
0.65	282.0	-0.2058	0.1934	0.0303
0.75	102.0	-0.0498	0.2845	0.03
0.75	114.0	0.5962	0.2077	0.0323
0.75	258.0	-0.2196	0.1924	0.0303
0.75	270.0	-0.3286	0.1736	0.0307
0.75	282.0	0.253	0.2643	0.0304
0.85	90.0	0.0141	0.2401	0.03
0.85	102.0	0.1979	0.1789	0.0303
0.85	114.0	-0.3141	0.1715	0.0307
0.85	126.0	-0.1717	0.1733	0.0302
0.85	138.0	0.1712	0.1998	0.0302
0.85	246.0	0.0542	0.2178	0.03
0.85	258.0	-0.1886	0.2217	0.0302
0.85	270.0	-0.1421	0.2218	0.0301
0.95	102.0	-0.436	0.186	0.0312
0.95	114.0	0.2089	0.1878	0.0303
0.95	126.0	-0.2276	0.2003	0.0303
0.95	138.0	0.2202	0.2265	0.0303
0.95	150.0	0.1569	0.1967	0.0302
0.95	162.0	0.161	0.2444	0.0302
0.95	174.0	0.0551	0.2377	0.03
0.95	186.0	-0.1974	0.2527	0.0303
0.95	198.0	0.2153	0.2633	0.0303
0.95	210.0	-0.6096	0.2176	0.0324
0.95	234.0	-0.2034	0.2774	0.0303

CLAS Physics Database