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
0.55	126.0	0.0247	0.7912
0.55	270.0	0.852	0.733
0.55	282.0	0.1577	0.7573
0.65	114.0	-0.5537	0.9517
0.65	294.0	0.6159	0.7068
0.75	126.0	1.0164	0.9967
0.75	210.0	-1.4672	0.7905
0.75	234.0	1.8514	0.7146
0.75	282.0	-1.3935	0.5838
0.85	102.0	0.5057	0.8659
0.85	114.0	-1.1716	1.0085
0.85	210.0	-0.0961	0.8984
0.85	222.0	-1.6021	0.7586
0.85	234.0	-1.8752	0.7576
0.95	234.0	-2.7326	2.635
0.45	78.0	-0.4873	0.7279
0.45	270.0	-0.2158	0.7888
0.45	282.0	-1.3815	0.7505
0.55	114.0	0.8572	0.7971
0.65	126.0	-1.1808	0.8418
0.65	138.0	-1.2074	0.9309
0.65	222.0	-1.1241	0.7437
0.65	294.0	0.1477	0.8121
0.75	114.0	-0.4513	0.8659
0.75	126.0	-1.6841	0.7866
0.75	222.0	-1.529	0.9907
0.75	234.0	2.1568	0.8723
0.75	282.0	-0.2182	0.692
0.75	294.0	-1.3291	0.7518
0.85	90.0	-0.7309	0.9286
0.85	102.0	-0.2587	0.8459
0.85	198.0	-1.4582	0.9372
0.85	210.0	0.565	0.8769
0.85	222.0	1.1059	0.8026
0.85	234.0	-1.8656	0.9187
0.85	246.0	-0.3283	0.8718
0.95	246.0	0.338	1.4778

CLAS Physics Database