Measurement E151M2163

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:	1.1684
Q²:	0.205 GeV²
W:	1205.0 GeV
E_beam:	2.999 GeV
ε:	0.9761

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.35	66.0	-0.2593	0.6787
0.45	282.0	-0.7269	0.7225
0.55	282.0	0.0579	0.5605
0.65	270.0	-0.3999	0.7679
0.65	282.0	-0.6658	0.5115
0.65	294.0	0.4406	0.5559
0.75	66.0	0.2868	0.6799
0.75	78.0	0.8547	0.7456
0.75	90.0	-0.1415	0.6884
0.75	258.0	0.0049	0.7959
0.75	270.0	0.6456	0.6131
0.75	282.0	0.5932	0.497
0.75	294.0	-0.1412	0.6006
0.85	66.0	0.765	0.481
0.85	78.0	0.5968	0.5533
0.85	90.0	0.1766	0.5073
0.85	102.0	-0.1582	0.5439
0.85	114.0	0.4699	0.8238
0.85	258.0	0.5269	0.7797
0.85	270.0	-0.1599	0.6801
0.85	282.0	-0.4762	0.5502
0.85	294.0	-1.0576	0.661
0.95	54.0	0.4661	0.567
0.95	66.0	0.4603	0.5257
0.95	78.0	0.0685	0.5924
0.95	90.0	0.6821	0.5341
0.95	102.0	-0.1403	0.6359
0.95	114.0	0.238	0.5563
0.95	126.0	0.8819	0.5923

CLAS Physics Database