Measurement E151M1585

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_LL
ε_L:	0.2167
Q²:	0.1715 GeV²
W:	1445.0 GeV
E_beam:	1.3383 GeV
ε:	0.6825

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty	syst. uncert.
0.55	246.0	0.6086	1.0704	0.0464
0.65	246.0	-1.1026	1.0521	0.0708
0.65	258.0	-0.8041	1.091	0.0556
0.75	114.0	2.3687	1.0665	0.141
0.75	234.0	0.7482	1.1291	0.0528
0.75	258.0	-0.9383	0.894	0.0623
0.85	246.0	1.4379	0.763	0.0888
0.85	258.0	-1.382	0.8923	0.0858
0.85	270.0	1.2852	1.1877	0.0805
0.95	258.0	0.8628	0.9448	0.0585
0.55	258.0	0.043	0.9012	0.0301
0.65	126.0	0.9203	0.947	0.0628
0.65	258.0	-0.3544	0.9194	0.0368
0.75	258.0	0.6717	0.8672	0.0502
0.85	126.0	-1.0865	0.8521	0.0717
0.85	138.0	-1.1809	0.8766	0.0769
0.85	246.0	1.1318	0.7814	0.0742
0.85	258.0	0.0537	0.7365	0.0302
0.95	258.0	-0.0492	0.7943	0.0301

CLAS Physics Database