Measurement E151M212

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:	0.9638
Q²:	0.1715 GeV²
W:	1205.0 GeV
E_beam:	1.3383 GeV
ε:	0.8813

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty	syst. uncert.
0.35	282.0	0.5646	0.817	0.0453
0.45	282.0	-0.5723	0.4367	0.0457
0.45	294.0	-0.2329	0.5851	0.0331
0.55	282.0	-0.8627	0.3542	0.06
0.65	270.0	2.4997	2.4997	0.1535
0.65	282.0	-0.4219	0.4938	0.0393
0.65	294.0	-0.3859	0.5536	0.0379
0.75	270.0	-0.8696	0.3539	0.0604
0.75	282.0	-0.3056	0.4905	0.0352
0.95	102.0	-0.6337	0.4006	0.0485
0.95	138.0	-1.0251	0.301	0.0686
0.95	162.0	0.5857	0.746	0.0463
0.35	294.0	-0.2396	0.4416	0.0335
0.45	282.0	0.0533	0.456	0.0302
0.55	270.0	-0.0277	0.4718	0.03
0.55	282.0	-0.1555	0.3754	0.0315
0.55	294.0	-0.1913	0.4159	0.0323
0.65	270.0	-0.1469	0.455	0.0313
0.65	282.0	0.766	0.429	0.0561
0.75	270.0	0.1642	0.4377	0.0317
0.75	294.0	-0.0137	0.4307	0.03
0.85	114.0	0.4901	0.5037	0.0427
0.95	90.0	-0.1387	0.4272	0.0312
0.95	102.0	-0.0678	0.4216	0.0303
0.95	114.0	0.2248	0.3503	0.0331

CLAS Physics Database