Measurement E151M1753

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:	0.1185
Q²:	0.0348 GeV²
W:	1355.0 GeV
E_beam:	1.9889 GeV
ε:	0.9487

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty	syst. uncert.
0.25	66.0	0.3547	0.7704	0.0369
0.25	306.0	-0.1029	0.7497	0.0306
0.35	66.0	-0.6558	0.7008	0.0498
0.35	78.0	0.6557	0.6537	0.0498
0.35	294.0	-0.7138	0.611	0.0526
0.35	306.0	-0.0703	0.6675	0.0303
0.45	66.0	-0.4202	0.739	0.0393
0.45	78.0	0.4522	0.6338	0.0406
0.45	90.0	-0.0284	0.6314	0.03
0.45	270.0	0.4223	0.7085	0.0394
0.45	282.0	-0.1051	0.6994	0.0307
0.45	294.0	0.9754	0.5348	0.0663
0.45	306.0	-0.0063	0.6207	0.03
0.55	78.0	0.2914	0.5262	0.0348
0.55	90.0	0.0303	0.5495	0.0301
0.55	246.0	-0.9866	0.7561	0.0669
0.55	258.0	0.2265	0.7642	0.033
0.55	270.0	1.1414	0.6447	0.0754
0.55	282.0	-1.1344	0.6823	0.075
0.55	294.0	0.1513	0.59	0.0314
0.65	78.0	0.0535	0.5764	0.0302
0.65	90.0	-1.0185	0.6168	0.0686
0.65	114.0	-0.4063	0.7158	0.0388
0.65	126.0	0.1173	0.7076	0.0308
0.65	138.0	0.3721	0.6802	0.0375
0.65	222.0	-1.0863	0.6174	0.0723
0.65	234.0	0.1195	0.5866	0.0309
0.65	246.0	0.0404	0.5654	0.0301
0.65	258.0	0.631	0.5897	0.0486
0.65	282.0	-1.34	0.6144	0.0866
0.75	102.0	0.9181	0.7721	0.0632
0.75	114.0	1.0467	0.5229	0.0702
0.75	126.0	-0.1741	0.6473	0.0318
0.75	138.0	0.2819	0.5184	0.0345
0.75	150.0	0.5699	0.7086	0.0457
0.75	162.0	-0.4868	0.7418	0.0421
0.75	222.0	0.5796	0.5259	0.0462
0.75	234.0	0.2375	0.5193	0.0333
0.75	246.0	0.6385	0.3859	0.049
0.75	258.0	-0.1684	0.4949	0.0317
0.85	114.0	0.7953	0.7232	0.0568
0.85	126.0	-1.2246	0.5914	0.08
0.85	138.0	-0.637	0.5795	0.0489
0.85	150.0	-0.1041	0.6818	0.0307
0.85	162.0	0.8982	0.7475	0.0621
0.85	210.0	-0.9137	0.6725	0.063
0.85	222.0	-0.1377	0.5526	0.0311
0.85	234.0	0.0481	0.4551	0.0301
0.85	246.0	0.0509	0.3934	0.0302
0.85	258.0	-0.3151	0.4908	0.0356
0.95	246.0	0.38	0.6567	0.0378

CLAS Physics Database