Measurement E151M2109

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:	0.0839
Q²:	0.0844 GeV²
W:	1595.0 GeV
E_beam:	2.2596 GeV
ε:	0.8622

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty	syst. uncert.
0.55	126.0	0.0247	0.7912	0.0301
0.55	270.0	0.852	0.733	0.0838
0.55	282.0	0.1577	0.7573	0.0333
0.65	114.0	-0.5537	0.9517	0.0591
0.65	294.0	0.6159	0.7068	0.0641
0.75	126.0	1.0164	0.9967	0.0981
0.75	210.0	-1.4672	0.7905	0.1381
0.75	234.0	1.8514	0.7146	0.1728
0.75	282.0	-1.3935	0.5838	0.1315
0.85	102.0	0.5057	0.8659	0.0553
0.85	114.0	-1.1716	1.0085	0.1118
0.85	210.0	-0.0961	0.8984	0.0313
0.85	222.0	-1.6021	0.7586	0.1503
0.85	234.0	-1.8752	0.7576	0.1749
0.95	234.0	-2.7326	2.635	0.2529
0.45	78.0	-0.4873	0.7279	0.0436
0.45	270.0	-0.2158	0.7888	0.0331
0.45	282.0	-1.3815	0.7505	0.0947
0.55	114.0	0.8572	0.7971	0.0633
0.65	126.0	-1.1808	0.8418	0.0825
0.65	138.0	-1.2074	0.9309	0.0841
0.65	222.0	-1.1241	0.7437	0.079
0.65	294.0	0.1477	0.8121	0.0315
0.75	114.0	-0.4513	0.8659	0.042
0.75	126.0	-1.6841	0.7866	0.1136
0.75	222.0	-1.529	0.9907	0.1039
0.75	234.0	2.1568	0.8723	0.1435
0.75	282.0	-0.2182	0.692	0.0332
0.75	294.0	-1.3291	0.7518	0.0915
0.85	90.0	-0.7309	0.9286	0.0562
0.85	102.0	-0.2587	0.8459	0.0344
0.85	198.0	-1.4582	0.9372	0.0995
0.85	210.0	0.565	0.8769	0.0474
0.85	222.0	1.1059	0.8026	0.0779
0.85	234.0	-1.8656	0.9187	0.125
0.85	246.0	-0.3283	0.8718	0.0368
0.95	246.0	0.338	1.4778	0.0372

CLAS Physics Database