Measurement E151M1662

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:	0.0106
Q²:	0.0143 GeV²
W:	1595.0 GeV
E_beam:	1.3383 GeV
ε:	0.5921

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty	syst. uncert.
0.65	150.0	-0.642	1.2737	0.0479
0.65	222.0	0.5595	1.1374	0.0443
0.65	234.0	-0.7883	0.9793	0.0548
0.75	222.0	-1.3881	0.8623	0.0861
0.85	222.0	-0.1487	1.0801	0.0312
0.35	42.0	-0.7948	0.8855	0.0563
0.75	222.0	0.9046	0.8198	0.062
0.85	150.0	-0.1447	0.9248	0.0312
0.85	234.0	0.0042	0.816	0.03

CLAS Physics Database