Measurement E151M102

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_UL
ε_L:	0.0071
Q²:	0.0023 GeV²
W:	1355.0 GeV
E_beam:	1.0539 GeV
ε:	0.8132

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty	syst. uncert.
0.45	42.0	0.1065	0.8752	0.0324
0.55	42.0	1.5732	0.7375	0.1815
0.55	54.0	-1.1442	0.6407	0.1336
0.55	222.0	-0.6012	0.6058	0.0747
0.55	234.0	0.0716	0.7256	0.0311
0.55	246.0	0.09	0.5299	0.0317
0.65	30.0	0.7671	0.8303	0.0923
0.65	42.0	0.2613	0.6931	0.0422
0.65	54.0	0.4546	0.6405	0.0598
0.65	162.0	-0.813	0.7219	0.0972
0.65	210.0	0.184	0.817	0.0366
0.65	222.0	0.379	0.7111	0.0525
0.65	234.0	0.13	0.4741	0.0334
0.65	246.0	-0.2577	0.453	0.0419
0.65	258.0	0.2343	0.7854	0.0401
0.75	42.0	0.3858	0.7735	0.0532
0.75	54.0	0.5551	0.78	0.0699
0.75	150.0	0.2846	0.7144	0.0441
0.75	210.0	-0.1348	0.7743	0.0337
0.75	222.0	1.2909	0.7109	0.1499
0.75	234.0	-0.6084	0.497	0.0754
0.75	246.0	-0.2462	0.5724	0.041
0.75	258.0	0.3943	0.8021	0.054
0.85	138.0	0.3636	0.748	0.0511
0.85	222.0	-0.2807	0.5113	0.0438
0.85	234.0	0.5998	0.606	0.0745
0.85	246.0	0.5195	0.6164	0.0663

CLAS Physics Database