Measurement E151M305

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:	0.3709
Q²:	0.1715 GeV²
W:	1355.0 GeV
E_beam:	1.3383 GeV
ε:	0.7801

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty	syst. uncert.
0.75	114.0	0.1781	1.039	0.0319
0.75	234.0	-0.6193	0.7489	0.0479
0.85	114.0	0.1829	1.0016	0.032
0.85	222.0	1.4685	1.324	0.0934
0.85	258.0	0.6703	1.0532	0.0503
0.85	270.0	-0.9886	0.4822	0.0667
0.85	282.0	-0.4693	0.7203	0.0412
0.65	258.0	-0.1131	0.6335	0.0308
0.75	102.0	0.6809	0.6989	0.0517
0.75	138.0	-0.1522	0.6301	0.0314
0.75	246.0	0.1391	0.665	0.0312
0.85	102.0	0.1233	0.6747	0.031
0.85	114.0	0.4907	0.6101	0.0427
0.85	138.0	0.7112	0.6028	0.0533
0.85	270.0	-0.3872	0.4984	0.0384
0.85	294.0	0.5265	0.5848	0.0443
0.95	270.0	-0.0909	0.5082	0.0305
0.95	282.0	-0.2949	0.5283	0.0351

CLAS Physics Database