Measurement E151M1883

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:	0.1065
Q²:	0.1205 GeV²
W:	1595.0 GeV
E_beam:	1.9889 GeV
ε:	0.7989

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.45	270.0	-1.2437	0.8635
0.45	282.0	0.3456	0.9518
0.45	294.0	-0.0923	0.9053
0.55	114.0	-0.6047	0.9281
0.55	126.0	0.2308	0.848
0.55	282.0	-1.3773	0.9196
0.65	114.0	0.5857	0.9483
0.65	126.0	1.0261	0.9378
0.65	138.0	0.0737	1.0051
0.65	294.0	-1.1554	0.739
0.75	114.0	0.6235	0.9654
0.75	126.0	0.317	0.9778
0.75	198.0	0.7759	0.8981
0.75	210.0	-1.4552	0.8151
0.75	222.0	0.2372	0.8505
0.75	234.0	0.5117	0.826
0.75	246.0	-0.765	0.9302
0.85	90.0	-1.7761	0.6858
0.85	222.0	-0.9801	0.737
0.85	234.0	-0.1521	0.6693
0.95	114.0	-0.7837	0.8004
0.95	222.0	-0.0272	0.7363
0.95	234.0	0.36	0.812
0.95	258.0	-0.7984	0.7872

CLAS Physics Database