Measurement E151M2352

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:	0.2167
Q²:	0.4155 GeV²
W:	1685.0 GeV
E_beam:	2.999 GeV
ε:	0.8348

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.55	102.0	0.847	0.786
0.55	306.0	-0.7601	0.8449
0.65	102.0	-0.2826	0.8515
0.65	114.0	0.6462	0.8581
0.65	222.0	-0.4428	0.8596
0.75	78.0	1.3573	0.7696
0.75	222.0	1.5355	0.8528
0.75	234.0	-2.3468	2.3468
0.85	66.0	0.9237	0.65
0.85	78.0	-0.5653	0.7422
0.85	90.0	0.0327	0.8931
0.85	198.0	1.2727	0.799
0.85	210.0	-0.0649	0.8804
0.85	222.0	0.2396	0.747
0.85	234.0	1.3738	0.6563
0.85	246.0	0.1016	0.6146
0.85	258.0	0.0305	0.674
0.85	270.0	0.558	0.7288
0.95	198.0	0.15	0.7286
0.95	210.0	-0.6025	0.7111
0.95	222.0	0.334	0.6807
0.95	234.0	1.1297	0.5904
0.95	246.0	0.5992	0.7059
0.95	258.0	-0.4566	0.6207
0.95	270.0	0.387	0.6517
0.95	282.0	0.6305	0.5933
0.95	294.0	0.0773	0.7582

CLAS Physics Database