Measurement E151M2407

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:	0.0374
Q²:	0.0844 GeV²
W:	1835.0 GeV
E_beam:	2.999 GeV
ε:	0.8322

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty	syst. uncert.
0.65	270.0	-0.9484	0.9565	0.075
0.75	90.0	0.7543	1.0236	0.0624
0.75	102.0	0.4809	1.1058	0.046
0.75	114.0	-1.5168	0.8637	0.114
0.75	186.0	0.2855	0.9791	0.0365
0.75	198.0	-1.1983	0.8922	0.0919
0.75	210.0	-0.515	0.8795	0.0479
0.75	258.0	0.0557	0.9671	0.0303
0.75	270.0	-2.2044	0.8319	0.1626
0.75	282.0	-0.5384	1.0383	0.0492
0.85	102.0	-1.4386	0.8138	0.1085
0.85	114.0	-0.2788	0.8717	0.0362
0.85	126.0	-1.8523	0.8515	0.1376
0.85	174.0	-0.6819	0.9759	0.0578
0.85	186.0	-0.286	0.8472	0.0365
0.85	198.0	0.2808	0.7756	0.0363
0.85	210.0	0.5597	0.7381	0.0505
0.85	222.0	-1.5305	0.8677	0.115
0.85	270.0	0.4035	0.9929	0.0419

CLAS Physics Database