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
0.55	246.0	0.6086	1.0704
0.65	246.0	-1.1026	1.0521
0.65	258.0	-0.8041	1.091
0.75	114.0	2.3687	1.0665
0.75	234.0	0.7482	1.1291
0.75	258.0	-0.9383	0.894
0.85	246.0	1.4379	0.763
0.85	258.0	-1.382	0.8923
0.85	270.0	1.2852	1.1877
0.95	258.0	0.8628	0.9448
0.55	258.0	0.043	0.9012
0.65	126.0	0.9203	0.947
0.65	258.0	-0.3544	0.9194
0.75	258.0	0.6717	0.8672
0.85	126.0	-1.0865	0.8521
0.85	138.0	-1.1809	0.8766
0.85	246.0	1.1318	0.7814
0.85	258.0	0.0537	0.7365
0.95	258.0	-0.0492	0.7943

CLAS Physics Database