Measurement E151M1324

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:	0.0071
Q²:	0.0023 GeV²
W:	1355.0 GeV
E_beam:	1.0539 GeV
ε:	0.8132

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.45	42.0	-0.107	0.993
0.55	42.0	1.2598	0.7761
0.55	54.0	-2.1026	0.7228
0.55	222.0	1.4851	0.6749
0.55	234.0	0.1485	0.821
0.55	246.0	-0.3217	0.5987
0.65	30.0	0.4575	0.9026
0.65	42.0	0.4804	0.7695
0.65	54.0	-0.6992	0.6909
0.65	162.0	-0.1654	0.8952
0.65	210.0	-0.1668	0.915
0.65	222.0	1.0012	0.7659
0.65	234.0	0.2696	0.5314
0.65	246.0	0.0829	0.5307
0.65	258.0	0.9164	0.8711
0.75	42.0	-1.3182	0.7857
0.75	54.0	-0.726	0.8172
0.75	150.0	-1.0767	0.7656
0.75	210.0	0.5347	0.8741
0.75	222.0	-1.1565	0.7467
0.75	234.0	-0.2382	0.6088
0.75	246.0	0.403	0.6817
0.75	258.0	-0.0329	0.8838
0.85	138.0	1.4966	0.7707
0.85	222.0	0.183	0.5999
0.85	234.0	-0.5737	0.6457
0.85	246.0	0.0213	0.6821

CLAS Physics Database