Measurement E151M986

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:	0.8625
Q²:	0.496 GeV²
W:	1325.0 GeV
E_beam:	2.999 GeV
ε:	0.9284

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty
0.45	282.0	1.1117	0.871
0.55	78.0	-0.1517	0.7188
0.55	90.0	-0.2863	0.6888
0.55	270.0	3.1622	3.1622
0.65	66.0	-1.3657	0.4871
0.65	78.0	0.1972	0.6821
0.65	90.0	-0.6647	0.4863
0.65	102.0	0.5407	0.7356
0.65	258.0	-0.8572	0.567
0.65	270.0	-0.138	0.7145
0.65	282.0	0.8374	0.691
0.65	294.0	2.0295	0.7616
0.75	66.0	0.2875	0.6051
0.75	78.0	0.1405	0.6466
0.75	90.0	0.7395	0.6508
0.75	102.0	0.3131	0.5956
0.75	114.0	-1.2166	0.527
0.75	258.0	0.6692	0.6401
0.75	270.0	-0.4964	0.516
0.75	282.0	-0.3074	0.5092
0.75	294.0	0.9411	0.7174
0.75	306.0	-0.9737	0.3866
0.75	318.0	-0.7352	0.5097
0.85	66.0	-0.0097	0.576
0.85	78.0	0.338	0.6217
0.85	90.0	0.4381	0.6941
0.85	102.0	1.0747	0.7608
0.85	114.0	0.1835	0.7281
0.85	222.0	0.7832	0.855
0.85	234.0	-0.8396	0.5603
0.85	246.0	-0.2661	0.5909
0.85	258.0	-0.1882	0.5233
0.85	270.0	-0.7296	0.4734
0.85	282.0	0.4432	0.5863
0.85	294.0	-0.2008	0.4452
0.85	306.0	0.1633	0.5715
0.85	318.0	1.1965	0.577
0.85	330.0	-0.272	0.5545
0.95	90.0	-0.0844	0.6642
0.95	102.0	-0.4526	0.6081
0.95	114.0	1.666	0.6902
0.95	234.0	-0.3004	0.5979
0.95	246.0	0.7893	0.7688
0.95	258.0	-0.4716	0.5192
0.95	270.0	-0.378	0.5587
0.95	282.0	-0.3603	0.5381
0.95	294.0	0.9485	0.6124
0.95	318.0	-1.3002	0.3802

CLAS Physics Database