Measurement E151M1952

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:	0.4112
Q²:	0.0593 GeV²
W:	1235.0 GeV
E_beam:	2.2596 GeV
ε:	0.977

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.75	270.0	0.1156	2.4199
0.85	150.0	3.3432	3.3432
0.65	270.0	0.4515	0.4366
0.85	138.0	0.4008	0.6929
0.95	162.0	1.4684	0.9717

CLAS Physics Database