Measurement E151M1605

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:	0.1968
Q²:	0.205 GeV²
W:	1475.0 GeV
E_beam:	1.3383 GeV
ε:	0.6135

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty	syst. uncert.
0.65	126.0	-1.2127	1.0233	0.0766
0.65	246.0	0.6715	1.0319	0.0492
0.75	234.0	0.2542	1.0349	0.0334
0.75	258.0	1.3348	0.9175	0.0832
0.85	258.0	0.1895	1.0599	0.032
0.55	246.0	-0.5629	0.9273	0.0451
0.85	270.0	1.4632	0.8107	0.0927
0.95	102.0	-0.1628	0.8094	0.0315

CLAS Physics Database