Measurement E151M250

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:	0.7443
Q²:	0.2445 GeV²
W:	1265.0 GeV
E_beam:	1.3383 GeV
ε:	0.8039

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty
0.55	270.0	-0.0459	0.4391
0.65	258.0	-0.0382	0.5533
0.65	282.0	0.0902	0.5271
0.75	114.0	-0.3182	0.5229
0.75	258.0	0.538	0.523
0.75	270.0	0.8917	0.4944
0.75	294.0	-0.4451	0.5333
0.85	90.0	0.2285	0.5495
0.85	114.0	-0.067	0.514
0.85	126.0	0.139	0.5008
0.85	138.0	-0.3507	0.5451
0.85	282.0	-0.2321	0.5213
0.95	114.0	-0.4963	0.4433
0.95	138.0	-0.1105	0.4658
0.95	150.0	-0.934	0.4198
0.55	282.0	-0.9131	0.4688
0.65	258.0	-0.2461	0.6773
0.65	270.0	-0.8283	0.5309
0.65	282.0	0.1772	0.7924
0.65	294.0	-0.2472	0.6656
0.75	246.0	-0.1137	0.6844
0.75	258.0	-0.049	0.7972
0.75	282.0	-0.1063	0.6685
0.85	90.0	0.6544	1.0384
0.85	102.0	-0.2003	0.7411
0.85	126.0	-0.8191	0.5933
0.85	138.0	-0.7265	0.605
0.85	270.0	0.4731	0.9208
0.85	282.0	1.5387	0.9565
0.85	294.0	1.6459	0.895

CLAS Physics Database