Measurement E151M1621

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:	0.1204
Q²:	0.1205 GeV²
W:	1505.0 GeV
E_beam:	1.3383 GeV
ε:	0.6429

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty	syst. uncert.
0.55	222.0	-0.9061	0.9058	0.062
0.65	126.0	1.3265	0.8959	0.085
0.65	138.0	-1.415	0.7432	0.09
0.65	222.0	-0.5432	0.763	0.0443
0.65	234.0	-0.5172	0.7736	0.0431
0.65	246.0	-1.1788	0.5796	0.0768
0.75	126.0	-0.2401	0.665	0.0333
0.75	138.0	1.1949	0.77	0.0776
0.75	222.0	0.7457	0.6138	0.0538
0.75	246.0	0.5362	0.8055	0.044
0.85	234.0	-0.3654	0.6288	0.0371
0.85	246.0	-0.3819	0.6551	0.0377
0.85	258.0	-0.338	0.7718	0.0362
0.95	270.0	0.3846	0.6982	0.0378
0.55	234.0	-1.7678	0.5755	0.1071
0.65	210.0	0.2301	1.0208	0.0328
0.65	222.0	-0.1385	1.0792	0.0311
0.65	234.0	0.4065	0.9068	0.0382
0.65	246.0	-1.3437	0.7987	0.0837
0.75	138.0	0.4478	1.0087	0.0397
0.75	258.0	0.1277	0.9314	0.0309
0.85	222.0	-1.6027	0.5332	0.0979
0.85	234.0	-0.4492	0.9007	0.0398
0.85	246.0	1.9031	0.5825	0.1147
0.85	258.0	1.9073	0.5048	0.1149
0.95	246.0	1.0419	0.9135	0.0676
0.95	270.0	-0.3142	0.8824	0.0351

CLAS Physics Database