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
0.35	66.0	-0.2042	0.6015
0.35	78.0	-0.1048	0.5526
0.45	78.0	0.967	1.2321
0.45	90.0	-0.2157	1.167
0.45	282.0	1.1669	1.075
0.55	78.0	-0.2414	1.1179
0.55	282.0	-0.0565	0.9374
0.65	114.0	0.3097	1.3733
0.65	126.0	1.0714	1.3924
0.65	222.0	0.2865	1.2292
0.65	234.0	1.21	1.2048
0.65	246.0	1.4099	1.0903
0.75	114.0	-1.5369	1.2201
0.75	126.0	-2.8299	0.9737
0.75	138.0	0.3024	1.3294
0.75	222.0	0.8836	1.3224
0.75	234.0	0.969	1.2057
0.75	246.0	-0.1979	1.2059
0.85	222.0	-1.1492	1.2255
0.85	234.0	2.5945	1.353
0.85	246.0	1.3299	1.2336
0.35	282.0	-0.2119	0.5914
0.45	78.0	0.2111	0.5196
0.45	282.0	-0.5537	0.5399
0.45	294.0	-0.274	0.5867
0.55	114.0	0.1541	0.7077
0.55	126.0	-1.5189	0.5374
0.55	270.0	0.1789	0.704
0.55	282.0	-0.1336	0.5951
0.65	150.0	-0.0907	0.73
0.65	222.0	0.2656	0.7743
0.65	234.0	-0.3157	0.5996
0.75	114.0	-0.7283	0.5404
0.75	126.0	-0.8511	0.5791
0.75	138.0	-1.5391	0.6302
0.75	222.0	2.5601	2.5601
0.75	234.0	-0.24	0.6572
0.85	222.0	0.3095	0.8278
0.85	234.0	0.7377	0.7869
0.85	246.0	0.2591	0.787

CLAS Physics Database