Measurement E151M3208

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:	0.197
Q²:	0.0496 GeV²
W:	1325.0 GeV
E_beam:	2.2596 GeV
ε:	0.9646

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LU	uncertainty	syst. uncert.
0.45	66.0	0.6751	0.1868	0.0329
0.55	78.0	-0.081	0.2317	0.03
0.65	78.0	0.0784	0.2344	0.03
0.65	246.0	-0.4595	0.1786	0.0314
0.65	258.0	-0.0868	0.2395	0.0301
0.75	114.0	-0.1329	0.2182	0.0301
0.75	126.0	-0.4499	0.2518	0.0313
0.75	138.0	-0.1726	0.2154	0.0302
0.75	234.0	0.1472	0.2398	0.0301
0.75	246.0	0.089	0.2117	0.0301
0.75	258.0	0.1461	0.2174	0.0301
0.75	270.0	-0.2109	0.2258	0.0303
0.85	114.0	0.0744	0.266	0.03
0.85	126.0	-0.0394	0.2165	0.03
0.85	138.0	0.2886	0.2246	0.0306
0.85	234.0	0.0717	0.2349	0.03
0.85	246.0	-0.0098	0.1966	0.03
0.85	258.0	0.2154	0.1814	0.0303
0.85	270.0	-0.2237	0.2101	0.0303
0.45	78.0	0.001	0.2296	0.03
0.55	78.0	-0.2331	0.2459	0.0304
0.65	258.0	0.1161	0.2571	0.0301
0.75	126.0	0.3568	0.2176	0.0308
0.75	138.0	0.8638	0.1528	0.0346
0.75	246.0	0.1836	0.2252	0.0302
0.75	258.0	-0.2625	0.191	0.0305
0.85	114.0	-0.0502	0.2341	0.03
0.85	138.0	0.0348	0.2536	0.03
0.85	234.0	0.3698	0.2208	0.0309
0.85	246.0	-0.3408	0.2084	0.0308
0.85	258.0	0.2316	0.1989	0.0304
0.85	270.0	-0.1361	0.2345	0.0301

CLAS Physics Database