Measurement E151M2075

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:	0.2491
Q²:	0.205 GeV²
W:	1505.0 GeV
E_beam:	2.2596 GeV
ε:	0.8719

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.55	114.0	-0.9095	1.7527
0.55	282.0	-1.2363	1.4262
0.55	306.0	-0.4609	1.6052
0.65	102.0	1.2055	1.7607
0.75	102.0	-4.8035	1.5913
0.75	114.0	3.6943	1.7786
0.75	126.0	-1.6703	2.0658
0.75	222.0	0.1092	1.5272
0.75	234.0	2.4318	1.6065
0.75	246.0	-2.5089	1.3467
0.85	222.0	-1.1796	1.9825
0.85	246.0	0.87	1.4193
0.85	258.0	-2.8448	1.6083
0.95	258.0	7.3573	5.1565
0.95	270.0	6.0712	5.0253
0.35	282.0	-1.2552	0.5644
0.35	294.0	0.0883	0.5418
0.55	114.0	0.1803	0.6328
0.55	306.0	1.2358	0.5559
0.65	102.0	0.5878	0.6831
0.65	234.0	1.4616	0.6791
0.75	102.0	0.5271	0.6951
0.75	114.0	-1.0618	0.5361
0.75	126.0	1.8356	0.6165
0.75	234.0	0.6315	0.793
0.75	246.0	-0.7424	0.7449
0.75	258.0	-0.9445	0.719
0.85	210.0	0.9386	0.8534
0.85	222.0	-0.8235	0.8783
0.85	234.0	1.3799	0.6758
0.85	246.0	0.2905	0.747
0.85	258.0	1.634	0.6932
0.95	258.0	0.6584	1.1579
0.95	270.0	-0.1392	1.188

CLAS Physics Database