Measurement E151M1781

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:	0.538
Q²:	0.348 GeV²
W:	1385.0 GeV
E_beam:	1.9889 GeV
ε:	0.8431

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.65	258.0	1.5573	0.6732
0.75	90.0	0.6396	0.7069
0.75	102.0	0.5568	0.7509
0.75	246.0	0.1598	0.8273
0.75	258.0	1.0554	0.7509
0.75	282.0	0.5983	0.7446
0.85	102.0	-0.4058	0.7185
0.85	114.0	0.4449	0.7328
0.85	126.0	0.0973	0.8109
0.85	210.0	-0.341	0.7979
0.85	234.0	-0.2886	0.7853
0.85	246.0	1.7998	0.5171
0.85	258.0	1.4477	0.6058
0.85	270.0	-0.1242	0.7731
0.85	282.0	0.9511	0.6888
0.85	294.0	0.3751	0.7345
0.95	246.0	-0.0667	0.7079
0.95	270.0	-0.0989	0.7265
0.95	282.0	1.2274	0.5643
0.95	294.0	0.8345	0.6028
0.95	306.0	1.4594	0.44

CLAS Physics Database