Measurement E151M2077

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_LL
ε_L:	0.3095
Q²:	0.2915 GeV²
W:	1505.0 GeV
E_beam:	2.2596 GeV
ε:	0.847

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty	syst. uncert.
0.75	102.0	-0.4909	0.6716	0.0438
0.75	246.0	0.9697	0.7315	0.0698
0.85	66.0	0.3754	0.6738	0.0387
0.85	246.0	1.451	0.6369	0.099
0.85	270.0	0.4732	0.7074	0.043
0.65	102.0	-0.7697	1.8654	0.0768
0.85	270.0	1.5674	1.6688	0.1471
0.95	294.0	3.1133	4.7949	0.2877

CLAS Physics Database