Measurement E151M1370

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:	0.0199
Q²:	0.0101 GeV²
W:	1415.0 GeV
E_beam:	1.0539 GeV
ε:	0.7165

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty	syst. uncert.
0.35	42.0	-0.3687	0.8634	0.0513
0.35	54.0	-0.1186	0.7368	0.0328
0.45	30.0	-0.4334	0.9298	0.0574
0.45	42.0	0.9963	0.6273	0.1163
0.45	54.0	-0.6969	0.6394	0.0841
0.45	222.0	-0.8133	0.8533	0.0965
0.45	234.0	0.6525	0.81	0.0795
0.45	246.0	0.2227	0.8669	0.0391
0.55	18.0	-0.1351	0.8215	0.0336
0.55	30.0	-0.7208	0.7638	0.0867
0.55	42.0	0.1617	0.552	0.0351
0.55	54.0	0.4755	0.6285	0.0615
0.55	138.0	-0.0783	1.0226	0.0313
0.55	150.0	0.2152	0.8135	0.0386
0.55	210.0	0.5302	0.805	0.0669
0.55	222.0	-0.3923	0.763	0.0535
0.55	234.0	0.067	0.571	0.0309
0.55	246.0	1.1736	0.5726	0.1357
0.55	258.0	-1.0321	0.8393	0.1202
0.65	42.0	0.0454	0.9636	0.0304
0.65	54.0	0.0042	0.8608	0.03
0.65	138.0	-0.0941	0.9628	0.0318
0.65	150.0	-1.2414	0.8102	0.1432
0.65	162.0	0.1961	0.7226	0.0373
0.65	174.0	-0.955	0.8871	0.1118
0.65	210.0	-0.1679	0.8847	0.0355
0.65	222.0	0.5836	0.5983	0.0723
0.65	234.0	-0.476	0.5574	0.0615
0.65	246.0	0.6362	0.5694	0.0778
0.65	258.0	0.9551	0.8261	0.1118
0.75	150.0	1.3091	0.8512	0.1507
0.75	210.0	2.1154	0.7297	0.2405
0.75	222.0	-0.8588	0.7154	0.1014
0.75	234.0	0.3465	0.6297	0.0493
0.75	246.0	0.2572	0.5817	0.0417
0.75	258.0	-0.076	0.8116	0.0312
0.85	210.0	0.1056	0.8242	0.0323
0.85	222.0	-0.7389	0.6494	0.0886
0.85	234.0	-0.5529	0.534	0.0692
0.85	246.0	-1.5685	0.5573	0.1794

CLAS Physics Database