Measurement E151M2099

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:	0.129
Q²:	0.1205 GeV²
W:	1565.0 GeV
E_beam:	2.2596 GeV
ε:	0.8673

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty	syst. uncert.
0.55	114.0	-0.89	0.6058	0.1092
0.65	102.0	-0.2421	0.8077	0.0339
0.65	114.0	-0.2398	0.8163	0.0338
0.65	138.0	0.8902	0.9758	0.0871
0.65	222.0	-0.844	0.848	0.0832
0.65	234.0	-0.4189	0.621	0.044
0.75	102.0	0.8598	0.8917	0.0635
0.75	114.0	0.7012	0.6555	0.0636
0.75	126.0	-0.8669	1.0147	0.0851
0.75	210.0	-0.8683	0.9616	0.064
0.75	222.0	0.0311	0.8018	0.0301
0.75	234.0	-0.7547	0.6175	0.065
0.85	90.0	-1.2064	1.0435	0.1149
0.85	222.0	0.1381	0.8873	0.0326
0.85	234.0	0.2418	0.9025	0.0373
0.85	246.0	-0.6813	0.9842	0.0694
0.95	234.0	-0.5931	2.5784	0.0622
0.95	246.0	2.8041	2.5409	0.2594
0.75	282.0	-1.6726	0.7409	0.1129
0.75	294.0	0.8352	0.795	0.0621
0.85	90.0	-0.2878	0.9573	0.0354
0.85	198.0	-0.4491	1.1409	0.0419
0.85	222.0	-1.9289	0.8078	0.129
0.85	234.0	-1.4407	0.876	0.0984
0.85	246.0	0.6798	0.9032	0.0534
0.95	246.0	0.635	1.4222	0.0511
0.95	258.0	1.6333	1.4725	0.1104

CLAS Physics Database