Measurement E151M868

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:	0.2461
Q²:	0.2445 GeV²
W:	1535.0 GeV
E_beam:	2.2596 GeV
ε:	0.8457

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty	syst. uncert.
0.85	210.0	0.3461	0.8829	0.0376
0.85	222.0	-0.1457	0.8353	0.0315
0.85	246.0	0.1769	0.7692	0.0322
0.85	258.0	-0.3574	0.7361	0.0381
0.95	258.0	-0.0239	1.2599	0.03
0.95	282.0	0.0824	1.0649	0.0305
0.75	114.0	-0.31	0.9759	0.0415
0.85	246.0	-0.9338	0.8822	0.0913
0.85	258.0	-0.8141	0.8584	0.0809
0.95	234.0	0.8276	2.8276	0.0821
0.95	270.0	-0.0894	2.3204	0.0311

CLAS Physics Database