Measurement E151M2117

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:	0.0387
Q²:	0.0415 GeV²
W:	1625.0 GeV
E_beam:	2.2596 GeV
ε:	0.8586

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.65	198.0	-0.3383	0.922
0.75	66.0	-1.2926	0.9269
0.75	210.0	-2.2887	0.6932
0.75	222.0	1.6937	0.7649
0.75	270.0	-0.066	0.7633
0.75	282.0	0.7661	0.7267
0.85	114.0	1.4721	0.9653
0.85	210.0	0.758	1.0075
0.85	222.0	1.346	1.0461
0.85	234.0	-2.3807	0.8644
0.45	126.0	-0.9395	0.7786
0.45	282.0	-0.1369	0.7742
0.55	78.0	0.3573	0.7997
0.55	138.0	0.3184	0.8764
0.55	210.0	-0.7046	0.9823
0.65	198.0	-0.9179	0.9923
0.75	210.0	-0.6121	0.9666
0.75	222.0	-0.6843	0.85
0.75	282.0	-0.7523	0.7693
0.75	294.0	0.7845	0.7723
0.85	102.0	0.0846	0.8585
0.85	114.0	0.6617	0.8824
0.85	210.0	-0.854	1.0174

CLAS Physics Database