Measurement E151M813

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:	0.4552
Q²:	0.2915 GeV²
W:	1415.0 GeV
E_beam:	2.2596 GeV
ε:	0.8858

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty
0.75	90.0	0.7535	0.6028
0.75	102.0	-0.6638	0.4802
0.85	102.0	-0.1303	0.6584
0.85	234.0	0.37	0.7944
0.85	258.0	-0.6223	0.6985
0.85	270.0	-0.7255	0.6207
0.85	282.0	0.1192	0.7224
0.95	306.0	-0.1837	0.8813
0.75	114.0	0.0707	1.1731
0.75	126.0	0.5241	1.216
0.75	258.0	-0.0281	0.9573
0.85	270.0	-0.9539	0.9151

CLAS Physics Database