Measurement E151M764

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:	0.197
Q²:	0.0496 GeV²
W:	1325.0 GeV
E_beam:	2.2596 GeV
ε:	0.9646

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty
0.45	66.0	0.5938	0.5724
0.55	78.0	-0.0949	0.5064
0.65	78.0	0.0949	0.5301
0.65	246.0	-0.719	0.4257
0.65	258.0	0.2442	0.5785
0.75	114.0	-0.8352	0.501
0.75	126.0	0.2297	0.6989
0.75	138.0	-0.2983	0.5634
0.75	234.0	-0.5055	0.5926
0.75	246.0	0.4491	0.5559
0.75	258.0	0.0695	0.5432
0.75	270.0	0.8649	0.5648
0.85	114.0	-0.4559	0.6577
0.85	126.0	0.7359	0.6208
0.85	138.0	1.0177	0.7006
0.85	234.0	-0.8612	0.5766
0.85	246.0	-0.0956	0.5245
0.85	258.0	0.194	0.5111
0.85	270.0	0.3595	0.5704
0.45	78.0	1.8569	1.3549
0.55	78.0	2.0879	1.4902
0.65	258.0	-1.9784	1.0847
0.75	126.0	3.9339	1.5098
0.75	138.0	-1.7582	1.4685
0.75	246.0	-0.473	1.2089
0.75	258.0	1.0865	1.0891
0.85	114.0	1.034	1.7248
0.85	138.0	-0.6463	1.7201
0.85	234.0	3.1613	1.5853
0.85	246.0	4.1365	1.2756
0.85	258.0	0.9358	1.246
0.85	270.0	-1.3203	1.2383

CLAS Physics Database