Measurement E151M1607

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:	0.0135
Q²:	0.0101 GeV²
W:	1505.0 GeV
E_beam:	1.3383 GeV
ε:	0.7384

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.55	42.0	-0.0645	0.7766
0.65	138.0	-0.231	0.8285
0.65	150.0	0.1011	0.799
0.65	222.0	-0.2707	0.8264
0.75	210.0	-0.957	0.6999
0.75	222.0	-0.5487	0.8225
0.75	234.0	0.4551	0.8638
0.85	222.0	-1.2295	0.7481
0.85	234.0	-1.3354	0.7672
0.55	222.0	-0.8479	0.9634
0.65	138.0	-2.361	2.361
0.65	210.0	-1.3897	0.856
0.65	222.0	1.4502	0.5835
0.65	234.0	-0.0804	0.981
0.75	210.0	-1.2462	0.7911
0.75	222.0	1.7677	0.688
0.75	234.0	-1.0698	0.7649
0.85	234.0	0.1899	0.9313

CLAS Physics Database