Measurement E151M2098

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:	0.1113
Q²:	0.101 GeV²
W:	1565.0 GeV
E_beam:	2.2596 GeV
ε:	0.8731

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.55	126.0	0.0015	0.8519
0.55	270.0	-0.1823	0.7793
0.55	282.0	-1.1754	0.8267
0.65	102.0	0.2394	0.8633
0.65	114.0	0.7033	0.6816
0.65	126.0	-0.5133	0.8977
0.65	222.0	0.8723	1.0108
0.65	246.0	-1.759	0.9056
0.75	114.0	0.5331	0.9394
0.75	126.0	-0.8314	0.9289
0.75	138.0	-1.1179	0.8525
0.75	222.0	0.8765	0.9323
0.75	234.0	-0.827	0.9458
0.75	294.0	-1.5649	0.7301
0.85	90.0	0.3866	0.7257
0.85	102.0	1.0948	0.7627
0.85	210.0	0.114	1.0104
0.85	222.0	-0.5684	0.7688
0.85	234.0	-0.6636	0.9471
0.85	246.0	0.1964	0.9053
0.85	282.0	-0.6471	0.9604
0.95	234.0	2.9022	1.3023
0.95	246.0	-2.6877	1.494
0.45	282.0	0.7719	0.7478
0.55	114.0	0.3547	0.9832
0.55	126.0	-2.2469	0.8755
0.55	258.0	0.1059	0.8435
0.55	270.0	0.2496	0.7613
0.65	126.0	-0.634	0.8992
0.65	138.0	1.2002	0.9419
0.65	222.0	1.8212	0.7497
0.75	102.0	1.3069	0.9996
0.75	114.0	0.357	0.8826
0.75	126.0	-0.0527	0.936
0.75	210.0	-0.5888	0.9124
0.75	222.0	1.0394	0.9406
0.75	234.0	0.1501	0.9019
0.75	282.0	0.5125	0.7066
0.75	294.0	-0.3996	0.8324
0.85	90.0	0.3342	1.1266
0.85	210.0	0.5866	1.0449
0.85	222.0	0.226	0.9458
0.85	234.0	-0.2858	0.9225
0.95	210.0	0.9934	3.0446
0.95	222.0	-0.1226	2.8398
0.95	246.0	0.2386	2.6646

CLAS Physics Database