Measurement E151M1893

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:	0.0364
Q²:	0.0415 GeV²
W:	1625.0 GeV
E_beam:	1.9889 GeV
ε:	0.8087

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.25	78.0	0.1293	0.9749
0.35	78.0	-0.5405	0.8328
0.35	258.0	-2.1639	0.6661
0.45	18.0	0.6836	0.8998
0.45	78.0	0.118	0.8025
0.45	90.0	-0.3762	0.8597
0.45	210.0	-1.5426	0.8258
0.45	222.0	-1.4954	0.7204
0.45	270.0	-0.2039	0.678
0.45	282.0	1.723	0.7143
0.55	114.0	1.8282	0.724
0.55	126.0	-0.601	0.7275
0.55	138.0	0.3978	0.8744
0.55	198.0	0.4131	0.9193
0.55	210.0	-0.5853	0.9216
0.55	222.0	-0.808	0.7965
0.55	234.0	0.6408	0.8655
0.55	246.0	0.0182	0.9068
0.55	258.0	-0.3138	0.7634
0.55	270.0	-0.1684	0.5944
0.55	282.0	0.2271	0.8539
0.65	78.0	-0.2654	0.9008
0.65	102.0	-0.7768	0.917
0.65	114.0	-1.3283	0.7369
0.65	126.0	0.6548	0.7631
0.65	138.0	1.4322	0.7685
0.65	198.0	1.4551	0.7356
0.65	210.0	-1.2056	0.7427
0.65	222.0	-0.071	0.7428
0.65	234.0	-0.7379	0.8853
0.65	246.0	1.0875	0.8725
0.65	258.0	1.6363	0.7557
0.65	282.0	-0.3552	0.9136
0.65	294.0	0.1763	0.9661
0.75	66.0	-1.1117	0.8823
0.75	78.0	-1.1199	0.7018
0.75	90.0	-0.7815	0.7942
0.75	138.0	0.0824	0.9367
0.75	210.0	-0.2536	0.6984
0.75	222.0	0.3956	0.6477
0.75	234.0	0.5627	0.9085
0.75	258.0	-0.6204	0.6787
0.75	270.0	-0.5303	0.6208
0.75	282.0	0.7788	0.5969
0.75	294.0	0.0344	0.8642
0.85	102.0	0.6205	0.8333
0.85	114.0	0.813	0.6265
0.85	126.0	1.028	0.7181
0.85	138.0	-1.0069	0.8061
0.85	198.0	-1.4066	0.8942
0.85	210.0	0.3149	0.7481
0.85	222.0	-0.7178	0.6934
0.85	234.0	0.1313	0.8046
0.85	246.0	-0.071	0.8225
0.85	282.0	1.4106	0.6791

CLAS Physics Database