Measurement E151M1416

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:	0.053
Q²:	0.0496 GeV²
W:	1475.0 GeV
E_beam:	1.0539 GeV
ε:	0.5492

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.25	42.0	-1.2574	0.7759
0.25	54.0	0.1357	0.736
0.35	54.0	-0.7952	0.6723
0.45	42.0	-0.0274	0.7847
0.45	54.0	1.1265	0.7554
0.45	234.0	-0.0388	0.8417
0.45	258.0	-0.3022	0.8741
0.55	174.0	-0.7028	0.7956
0.55	222.0	-1.3305	0.7281
0.55	234.0	-0.7581	0.6953
0.55	246.0	0.1145	0.6412
0.55	258.0	-0.8047	0.7668
0.55	270.0	0.4996	0.8906
0.65	150.0	1.023	0.8654
0.65	234.0	0.0818	0.5869
0.65	246.0	1.1947	0.609
0.65	258.0	-0.1465	0.6166
0.75	150.0	0.2929	0.9067
0.75	234.0	-0.1892	0.6316
0.75	246.0	-0.3545	0.5626
0.75	258.0	0.2132	0.5457
0.75	270.0	-0.7564	0.7481
0.85	234.0	-1.1196	0.5516
0.85	246.0	0.6145	0.4794
0.85	258.0	-0.3203	0.6128
0.85	270.0	0.7209	0.6843

CLAS Physics Database