Measurement E151M1191

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:	0.0917
Q²:	0.2445 GeV²
W:	1835.0 GeV
E_beam:	2.999 GeV
ε:	0.7945

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty	syst. uncert.
0.85	90.0	0.3727	0.8875	0.0405
0.85	102.0	0.9599	1.0115	0.0763
0.85	186.0	2.7776	1.2469	0.2052
0.85	198.0	0.4938	0.8969	0.0469
0.85	210.0	-0.7377	0.7272	0.0617
0.85	222.0	0.2205	0.8426	0.0341
0.85	234.0	1.2729	1.023	0.0978
0.95	210.0	0.6953	0.9383	0.059
0.95	222.0	0.6806	0.8812	0.0581

CLAS Physics Database