Measurement E151M1671

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:	0.0445
Q²:	0.0707 GeV²
W:	1595.0 GeV
E_beam:	1.3383 GeV
ε:	0.5371

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty	syst. uncert.
0.75	234.0	1.6228	0.6964	0.099
0.75	246.0	0.5291	0.6982	0.0789
0.85	246.0	-0.0017	0.6883	0.031

CLAS Physics Database