Measurement E151M1882

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:	0.0922
Q²:	0.101 GeV²
W:	1595.0 GeV
E_beam:	1.9889 GeV
ε:	0.8071

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.35	270.0	-0.9689	0.8601
0.65	114.0	-0.9506	0.8612
0.65	126.0	0.4536	0.8582
0.65	138.0	-1.0555	0.9238
0.65	210.0	-0.6361	0.8349
0.65	222.0	0.9484	0.84
0.65	282.0	0.4169	0.893
0.65	294.0	0.0077	0.9453
0.75	114.0	0.3765	0.898
0.75	126.0	0.009	0.9421
0.75	138.0	-0.1603	0.9272
0.75	210.0	-1.5129	0.8012
0.75	222.0	0.8017	0.7478
0.75	234.0	-0.2508	0.8502
0.75	282.0	0.7819	0.7564
0.75	294.0	-0.9726	0.7304
0.85	102.0	-0.118	0.7893
0.85	114.0	0.2955	0.8507
0.85	210.0	-0.125	0.7183
0.85	222.0	-1.5351	0.6175
0.85	234.0	0.0887	0.6698
0.85	246.0	-0.5817	0.7176
0.95	126.0	-1.3293	0.718
0.95	234.0	0.8542	0.7798
0.95	246.0	1.1358	0.7077

CLAS Physics Database