Measurement E151M2395

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:	0.0416
Q²:	0.0844 GeV²
W:	1805.0 GeV
E_beam:	2.999 GeV
ε:	0.848

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty	syst. uncert.
0.45	270.0	0.0417	0.9799	0.0302
0.55	138.0	0.0776	1.1673	0.0305
0.65	126.0	-1.1627	0.8551	0.0895
0.65	138.0	-0.1788	1.0518	0.0327
0.65	198.0	-0.5758	1.0888	0.0514
0.65	210.0	0.002	1.0688	0.03
0.65	270.0	-0.3785	0.9257	0.0407
0.65	282.0	-0.3767	0.9968	0.0406
0.75	90.0	-0.4606	1.0214	0.0449
0.75	102.0	-1.1735	0.7764	0.0902
0.75	114.0	-0.0528	1.0427	0.0302
0.75	186.0	-0.1381	1.0606	0.0316
0.75	198.0	-1.7885	0.7614	0.1331
0.75	210.0	-2.0499	0.7948	0.1516
0.75	222.0	0.3965	0.9458	0.0416
0.75	258.0	1.9396	0.9875	0.1438
0.75	270.0	-0.6527	0.8687	0.056
0.75	282.0	-1.4168	0.7658	0.107
0.85	90.0	-0.4821	0.9483	0.0461
0.85	102.0	-0.0515	0.812	0.0302
0.85	114.0	-1.1844	0.8419	0.091
0.85	126.0	0.1691	0.8917	0.0324
0.85	138.0	0.0242	0.9793	0.0301
0.85	174.0	0.6709	0.9669	0.0572
0.85	186.0	0.8754	0.8048	0.0702
0.85	198.0	-0.238	0.7019	0.0346
0.85	210.0	0.295	0.6771	0.0368
0.85	222.0	0.5024	0.8923	0.0472
0.85	234.0	1.8331	1.0165	0.1363
0.85	270.0	0.8313	1.0115	0.0673
0.85	282.0	0.1597	0.9112	0.0322
0.95	210.0	-2.0094	0.9573	0.1488
0.95	222.0	1.5229	0.8674	0.1144

CLAS Physics Database