Measurement E151M17

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:	0.8137
Q²:	0.1435 GeV²
W:	1205.0 GeV
E_beam:	1.0539 GeV
ε:	0.8234

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty	syst. uncert.
0.45	282.0	-0.1327	0.4072	0.0336
0.55	282.0	-0.7796	0.3649	0.0936
0.65	282.0	-0.2315	0.4869	0.0399
0.95	162.0	-0.4289	0.3395	0.0573

CLAS Physics Database