Measurement E151M2895

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_LU
ε_L:	0.0014
Q²:	0.0023 GeV²
W:	1625.0 GeV
E_beam:	1.3383 GeV
ε:	0.5468

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LU	uncertainty
0.85	210.0	-0.1743	0.3549
0.45	30.0	0.175	0.2776
0.65	222.0	0.0923	0.2612
0.75	222.0	-0.1331	0.2814

CLAS Physics Database