Measurement E151M2179

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:	1.2681
Q²:	0.5925 GeV²
W:	1235.0 GeV
E_beam:	2.999 GeV
ε:	0.9304

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.35	294.0	0.3194	0.7706
0.45	282.0	-0.1381	0.7979
0.55	78.0	-0.9644	0.7822
0.55	270.0	-0.1946	0.7675
0.65	66.0	0.0047	0.8021
0.65	78.0	0.089	0.8056
0.65	90.0	0.1587	0.7458
0.65	282.0	1.3021	0.7077
0.75	90.0	0.2769	0.6633
0.75	270.0	1.2782	0.7067
0.75	282.0	-0.5682	0.6197
0.85	66.0	0.2367	0.6452
0.85	90.0	0.4573	0.7469

CLAS Physics Database