Measurement E151M1797

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:	0.4696
Q²:	0.348 GeV²
W:	1415.0 GeV
E_beam:	1.9889 GeV
ε:	0.8278

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.65	90.0	0.0033	0.8235
0.65	102.0	0.6354	0.8607
0.65	114.0	-0.6865	0.8774
0.75	90.0	0.2717	0.8519
0.75	114.0	0.7824	0.7973
0.75	234.0	1.3031	0.7383
0.75	270.0	1.2957	0.6125
0.85	66.0	0.3391	0.8196
0.85	102.0	1.3041	0.7609
0.85	114.0	-1.1996	0.7456
0.85	258.0	-1.0656	0.7049
0.85	270.0	0.419	0.7771
0.85	282.0	-0.3677	0.6882
0.95	126.0	1.1924	0.7045
0.95	222.0	0.5142	0.7804
0.95	270.0	0.8	0.6866
0.95	294.0	0.6482	0.6669
0.95	306.0	-0.5078	0.6618

CLAS Physics Database