Measurement E151M144

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:	0.01
Q²:	0.005 GeV²
W:	1415.0 GeV
E_beam:	1.0539 GeV
ε:	0.7229

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty	syst. uncert.
0.45	54.0	-0.8459	0.7999	0.1008
0.45	66.0	2.5738	0.8497	0.2944
0.55	54.0	0.4829	0.8223	0.0626
0.55	234.0	0.5807	0.7752	0.0726
0.65	42.0	-1.0402	0.7185	0.1221
0.65	222.0	0.2711	0.7201	0.043
0.65	234.0	-1.0459	0.6364	0.1227
0.65	246.0	-1.1649	0.5189	0.1359
0.75	234.0	0.502	0.6903	0.0645
0.85	222.0	1.4956	0.7529	0.1728
0.85	234.0	0.1204	0.6894	0.033

CLAS Physics Database