Measurement E151M327

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:	0.3646
Q²:	0.2445 GeV²
W:	1385.0 GeV
E_beam:	1.3383 GeV
ε:	0.6963

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty	syst. uncert.
0.65	258.0	0.4965	0.9841	0.0424
0.75	126.0	0.0399	1.107	0.0301
0.75	258.0	-0.7914	0.688	0.0563
0.75	270.0	-0.4096	0.7271	0.0388
0.85	282.0	-0.1667	0.8017	0.0316
0.85	294.0	-0.2021	0.9193	0.0324
0.55	258.0	0.1362	0.6402	0.0312
0.75	246.0	-0.2606	0.6581	0.0341
0.75	258.0	-1.1053	0.6345	0.0747
0.75	270.0	-0.525	0.6794	0.0442
0.75	282.0	-0.5351	0.6515	0.0447
0.85	282.0	-0.9535	0.5534	0.0662
0.85	294.0	0.1264	0.6269	0.031
0.95	78.0	-0.0516	0.5157	0.0302
0.95	258.0	-0.501	0.5329	0.0432
0.95	270.0	-0.3636	0.5242	0.0375
0.95	294.0	0.0333	0.5372	0.0301

CLAS Physics Database