Measurement E151M270

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:	0.6504
Q²:	0.2915 GeV²
W:	1295.0 GeV
E_beam:	1.3383 GeV
ε:	0.7501

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty	syst. uncert.
0.75	138.0	-0.5476	0.7934	0.0446
0.75	246.0	1.6592	1.1435	0.1043
0.85	102.0	-1.0472	0.5662	0.0698
0.85	114.0	0.3722	1.1565	0.0374
0.85	282.0	1.567	1.0891	0.099
0.65	294.0	0.0843	0.6298	0.0305
0.85	102.0	-0.5961	0.55	0.0476
0.85	126.0	0.0304	0.5717	0.0301
0.85	162.0	-0.0731	0.5876	0.0303
0.85	270.0	-0.0893	0.5563	0.0305
0.85	294.0	0.8538	0.5629	0.0608

CLAS Physics Database