Measurement E151M1604

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:	0.1803
Q²:	0.1715 GeV²
W:	1475.0 GeV
E_beam:	1.3383 GeV
ε:	0.6422

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty	syst. uncert.
0.65	234.0	-1.5987	0.8485	0.1004
0.65	246.0	0.8097	0.8014	0.0571
0.75	126.0	-0.7296	0.9284	0.053
0.75	234.0	1.3353	0.7994	0.0855
0.75	246.0	0.0145	0.7976	0.03
0.75	258.0	0.9826	0.7763	0.0661
0.75	270.0	0.0105	0.8381	0.03
0.85	126.0	-1.1336	0.8814	0.0743
0.85	138.0	-0.2555	0.8829	0.0337
0.85	246.0	-0.3565	0.9299	0.0368
0.85	258.0	-0.6476	0.7857	0.0491
0.85	270.0	-0.581	0.7612	0.046
0.95	246.0	1.2926	0.7733	0.0831
0.95	282.0	1.1228	0.706	0.0737
0.55	246.0	0.0423	1.1399	0.0301
0.65	234.0	2.4545	2.4545	0.1458
0.65	246.0	-0.4613	0.9619	0.0402
0.65	258.0	-1.3145	0.8464	0.0821
0.75	246.0	0.9749	1.0289	0.0641
0.75	258.0	2.4897	2.4897	0.1478
0.75	270.0	-1.3623	0.949	0.0847
0.85	234.0	-0.0198	1.0577	0.03
0.85	246.0	-0.297	0.8776	0.0346
0.85	258.0	0.8435	0.9625	0.0575
0.85	270.0	-0.3116	0.96	0.035
0.85	282.0	1.8545	0.7204	0.1119
0.95	270.0	-0.0821	0.8168	0.0304

CLAS Physics Database