Measurement E151M3178

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:	0.7003
Q²:	0.1205 GeV²
W:	1235.0 GeV
E_beam:	2.2596 GeV
ε:	0.9666

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LU	uncertainty	syst. uncert.
0.55	282.0	0.0766	0.2318	0.03
0.65	258.0	-0.0337	0.2528	0.03
0.65	270.0	-0.3174	0.2293	0.0307
0.65	282.0	-0.0353	0.2279	0.03
0.75	258.0	0.2552	0.2043	0.0304
0.75	270.0	-0.0377	0.2271	0.03
0.75	282.0	-0.0019	0.2292	0.03
0.85	90.0	0.0011	0.2346	0.03
0.85	102.0	-0.2416	0.2368	0.0304
0.85	114.0	-0.0659	0.2155	0.03
0.85	126.0	-0.1315	0.1954	0.0301
0.85	258.0	0.1606	0.2091	0.0302
0.85	270.0	-0.1127	0.2112	0.0301
0.95	114.0	0.2194	0.2352	0.0303
0.95	126.0	-0.0397	0.2497	0.03
0.95	138.0	-0.0346	0.2232	0.03
0.95	150.0	0.0248	0.2307	0.03
0.45	66.0	0.0422	0.2644	0.03
0.65	270.0	0.1052	0.24	0.0301
0.65	282.0	0.1554	0.2429	0.0302
0.75	270.0	-0.156	0.1807	0.0302
0.75	282.0	-0.053	0.2426	0.03
0.85	90.0	-0.2158	0.2534	0.0303
0.85	102.0	0.3197	0.2318	0.0307
0.85	114.0	0.4712	0.2075	0.0314
0.85	126.0	-0.32	0.227	0.0307
0.85	258.0	-0.57	0.2077	0.0321
0.85	270.0	0.1577	0.2378	0.0302
0.95	102.0	0.1089	0.248	0.0301
0.95	114.0	-0.001	0.2702	0.03
0.95	126.0	-0.2103	0.2334	0.0303
0.95	138.0	0.1959	0.0314	None
0.95	150.0	-0.0919	0.2419	0.0301
0.95	174.0	-0.3796	0.234	0.0309

CLAS Physics Database