Measurement E151M1550

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:	0.0233
Q²:	0.0101 GeV²
W:	1415.0 GeV
E_beam:	1.3383 GeV
ε:	0.84

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty	syst. uncert.
0.55	222.0	-0.5999	0.7204	0.0466
0.65	222.0	0.2341	0.8687	0.0331
0.65	234.0	-0.1918	0.725	0.0321
0.75	234.0	-0.1292	0.792	0.031
0.55	246.0	0.2131	0.9769	0.0325
0.65	210.0	-1.3425	1.0951	0.0836
0.65	222.0	-1.5581	0.7592	0.0954
0.85	222.0	0.8167	1.0588	0.0562
0.85	234.0	1.2365	0.7423	0.0779

CLAS Physics Database