Measurement E151M141

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:	0.1796
Q²:	0.101 GeV²
W:	1385.0 GeV
E_beam:	1.0539 GeV
ε:	0.6553

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty
0.55	246.0	-0.0511	0.6826
0.55	258.0	-0.4629	0.8148
0.55	270.0	-0.7471	0.6272
0.65	138.0	1.2187	0.9598
0.65	246.0	0.3735	0.6482
0.65	258.0	0.678	0.6837
0.65	270.0	0.0818	0.6791
0.75	138.0	-0.5969	0.8199
0.75	186.0	0.5238	0.8002
0.75	222.0	-1.3004	0.6633
0.75	234.0	0.6805	0.7117
0.75	246.0	0.0306	0.7513
0.75	258.0	-0.1897	0.6082
0.75	270.0	-0.1196	0.6388
0.85	126.0	-0.5943	0.7518
0.85	138.0	-0.2539	0.7417
0.85	162.0	-0.7111	0.6801
0.85	234.0	0.3693	0.7043
0.85	246.0	1.1949	0.7818
0.85	258.0	0.0934	0.5927
0.85	270.0	1.3096	0.5799
0.85	282.0	0.2064	0.6918
0.95	162.0	-1.1231	0.5672
0.95	258.0	2.348	2.348

CLAS Physics Database