Measurement E151M1352

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:	0.0346
Q²:	0.0143 GeV²
W:	1385.0 GeV
E_beam:	1.0539 GeV
ε:	0.7585

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.35	30.0	0.5151	0.8918
0.35	42.0	0.3814	0.6749
0.35	54.0	0.2804	0.708
0.45	30.0	2.0879	0.7671
0.45	42.0	-1.1144	0.6427
0.45	54.0	0.7643	0.5718
0.45	66.0	1.0984	0.9539
0.45	222.0	-0.8973	0.9271
0.45	234.0	-1.7573	0.6603
0.45	246.0	-0.2516	0.8194
0.55	18.0	-0.5274	0.8635
0.55	30.0	-0.0974	0.7452
0.55	42.0	0.9549	0.5056
0.55	54.0	-0.043	0.7075
0.55	150.0	-0.7593	0.9087
0.55	210.0	-1.4266	0.8237
0.55	222.0	-0.59	0.6833
0.55	234.0	-0.6101	0.6072
0.55	246.0	-0.0566	0.5801
0.55	258.0	0.7991	0.7891
0.65	42.0	0.4255	0.8547
0.65	54.0	-0.5591	0.7893
0.65	138.0	0.0698	0.7558
0.65	150.0	0.9606	0.7015
0.65	162.0	-0.0638	0.8517
0.65	174.0	-2.1396	0.8206
0.65	186.0	0.5859	0.9745
0.65	210.0	1.6257	0.7182
0.65	222.0	-0.1983	0.5921
0.65	234.0	-0.424	0.515
0.65	246.0	-0.3991	0.6174
0.65	258.0	-0.2521	0.5822
0.75	138.0	1.572	0.8222
0.75	150.0	0.4384	0.7946
0.75	162.0	0.0939	0.8054
0.75	174.0	0.7181	0.9046
0.75	210.0	-0.7692	0.8614
0.75	222.0	0.2701	0.6017
0.75	234.0	0.7101	0.6093
0.75	246.0	-0.3475	0.4676
0.75	258.0	0.5963	0.5909
0.85	138.0	0.2096	0.8448
0.85	210.0	-0.7672	0.882
0.85	222.0	1.1492	0.6481
0.85	234.0	0.0121	0.5372
0.85	246.0	-0.1784	0.4777
0.85	258.0	-1.1255	0.5893

CLAS Physics Database