Measurement E151M2409

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:	0.0514
Q²:	0.1205 GeV²
W:	1835.0 GeV
E_beam:	2.999 GeV
ε:	0.8239

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.65	54.0	-2.8823	2.8823
0.65	282.0	-0.4249	0.9712
0.75	102.0	1.8603	0.8118
0.75	198.0	-0.4937	0.9442
0.75	210.0	-0.7448	0.9785
0.75	258.0	-0.9768	1.0166
0.75	282.0	-0.0925	1.0056
0.85	90.0	-0.2968	1.057
0.85	102.0	0.0309	0.8617
0.85	114.0	-0.095	0.9288
0.85	126.0	0.339	1.1574
0.85	186.0	0.0669	0.7883
0.85	198.0	0.2086	0.8414
0.85	210.0	-0.074	0.8402
0.85	222.0	-0.3391	0.8924
0.85	234.0	0.6704	1.0467
0.95	210.0	-2.1452	0.8083

CLAS Physics Database