Measurement E151M1669

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:	0.0332
Q²:	0.0496 GeV²
W:	1595.0 GeV
E_beam:	1.3383 GeV
ε:	0.5578

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty	syst. uncert.
0.55	222.0	-1.5938	0.6668	0.099
0.65	150.0	0.0345	0.7945	0.0301
0.65	222.0	-0.3118	0.7992	0.0353
0.75	234.0	-1.3858	0.7598	0.0883
0.85	138.0	-0.087	0.9177	0.0305
0.85	150.0	-1.1154	0.9649	0.0733
0.85	222.0	-0.1225	0.9186	0.0309
0.85	234.0	-1.4904	0.8662	0.0942
0.85	246.0	0.2329	0.8742	0.0331
0.65	234.0	-0.1824	1.2048	0.0318
0.65	246.0	-1.3252	1.0865	0.0827
0.75	222.0	1.6413	0.9072	0.1
0.75	234.0	-0.6778	1.2443	0.0495
0.85	234.0	2.4894	2.4894	0.1478

CLAS Physics Database