Measurement E151M1919

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:	0.0234
Q²:	0.0348 GeV²
W:	1685.0 GeV
E_beam:	1.9889 GeV
ε:	0.7592

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.45	78.0	-1.2988	0.5971
0.45	270.0	0.1298	0.7073
0.45	282.0	-0.3399	0.6049
0.55	102.0	-0.5313	0.7337
0.55	258.0	-0.0887	0.7297
0.55	270.0	-1.5563	0.6442
0.55	318.0	-0.708	0.6769
0.65	126.0	-0.8022	0.5942
0.65	198.0	-1.561	0.5778
0.65	210.0	-0.1899	0.6782
0.65	282.0	-0.0909	0.6249
0.65	294.0	0.7857	0.6907
0.75	66.0	0.3945	0.5766
0.75	78.0	0.7896	0.7078
0.75	198.0	0.5851	0.5873
0.75	222.0	0.6504	0.5922
0.75	258.0	-0.5	0.6654
0.75	270.0	0.564	0.4722
0.75	282.0	0.3964	0.4867
0.85	114.0	1.0128	0.5929
0.85	126.0	0.8607	0.6351
0.85	138.0	-1.2729	0.5998
0.85	198.0	-0.4504	0.5975
0.85	210.0	-1.1494	0.5688
0.85	222.0	-0.8997	0.5624
0.85	270.0	-0.708	0.6416

CLAS Physics Database