Measurement E151M1404

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:	0.0075
Q²:	0.0059 GeV²
W:	1475.0 GeV
E_beam:	1.0539 GeV
ε:	0.6087

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty	syst. uncert.
0.35	42.0	0.3077	0.7803	0.0459
0.35	54.0	-0.9394	0.7854	0.1101
0.45	42.0	-1.0405	0.7851	0.1211
0.45	54.0	0.4984	0.7042	0.0637
0.45	246.0	0.4624	0.853	0.0602
0.55	210.0	-0.4798	0.8384	0.0619
0.55	234.0	-1.2306	0.7813	0.142
0.65	222.0	-0.0472	0.7459	0.0305
0.65	234.0	-0.9395	0.774	0.1101
0.65	246.0	-0.007	0.6624	0.03
0.75	222.0	-0.0151	0.7404	0.03
0.75	234.0	-0.6306	0.6274	0.0772
0.75	246.0	0.1496	0.6964	0.0344
0.85	222.0	0.5735	0.7568	0.0713
0.85	234.0	-1.0066	0.6755	0.1174

CLAS Physics Database