Measurement E151M830

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_UL
ε_L:	0.0759
Q²:	0.0415 GeV²
W:	1475.0 GeV
E_beam:	2.2596 GeV
ε:	0.927

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty	syst. uncert.
0.35	66.0	-0.2042	0.6015	0.0329
0.35	78.0	-0.1048	0.5526	0.0377
0.45	78.0	0.967	1.2321	0.0942
0.45	90.0	-0.2157	1.167	0.036
0.45	282.0	1.1669	1.075	0.1118
0.55	78.0	-0.2414	1.1179	0.0374
0.55	282.0	-0.0565	0.9374	0.0305
0.65	114.0	0.3097	1.3733	0.0414
0.65	126.0	1.0714	1.3924	0.1033
0.65	222.0	0.2865	1.2292	0.04
0.65	234.0	1.21	1.2048	0.1156
0.65	246.0	1.4099	1.0903	0.1335
0.75	114.0	-1.5369	1.2201	0.145
0.75	126.0	-2.8299	0.9737	0.2629
0.75	138.0	0.3024	1.3294	0.041
0.75	222.0	0.8836	1.3224	0.0869
0.75	234.0	0.969	1.2057	0.0943
0.75	246.0	-0.1979	1.2059	0.0351
0.85	222.0	-1.1492	1.2255	0.1102
0.85	234.0	2.5945	1.353	0.2413
0.85	246.0	1.3299	1.2336	0.1264
0.35	282.0	-0.2119	0.5914	0.0331
0.45	78.0	0.2111	0.5196	0.033
0.45	282.0	-0.5537	0.5399	0.0471
0.45	294.0	-0.274	0.5867	0.035
0.55	114.0	0.1541	0.7077	0.0317
0.55	126.0	-1.5189	0.5374	0.1041
0.55	270.0	0.1789	0.704	0.0322
0.55	282.0	-0.1336	0.5951	0.0313
0.65	150.0	-0.0907	0.73	0.0306
0.65	222.0	0.2656	0.7743	0.0347
0.65	234.0	-0.3157	0.5996	0.0365
0.75	114.0	-0.7283	0.5404	0.0564
0.75	126.0	-0.8511	0.5791	0.0634
0.75	138.0	-1.5391	0.6302	0.1054
0.75	222.0	2.5601	2.5601	0.1707
0.75	234.0	-0.24	0.6572	0.0339
0.85	222.0	0.3095	0.8278	0.0362
0.85	234.0	0.7377	0.7869	0.0569
0.85	246.0	0.2591	0.787	0.0345

CLAS Physics Database