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	syst. uncert.
0.45	42.0	-0.107	0.993	0.0323
0.55	42.0	1.2598	0.7761	0.1452
0.55	54.0	-2.1026	0.7228	0.239
0.55	222.0	1.4851	0.6749	0.1702
0.55	234.0	0.1485	0.821	0.0344
0.55	246.0	-0.3217	0.5987	0.0471
0.65	30.0	0.4575	0.9026	0.0597
0.65	42.0	0.4804	0.7695	0.0619
0.65	54.0	-0.6992	0.6909	0.0844
0.65	162.0	-0.1654	0.8952	0.0353
0.65	210.0	-0.1668	0.915	0.0354
0.65	222.0	1.0012	0.7659	0.1168
0.65	234.0	0.2696	0.5314	0.0427
0.65	246.0	0.0829	0.5307	0.0314
0.65	258.0	0.9164	0.8711	0.1076
0.75	42.0	-1.3182	0.7857	0.1517
0.75	54.0	-0.726	0.8172	0.0872
0.75	150.0	-1.0767	0.7656	0.1251
0.75	210.0	0.5347	0.8741	0.0674
0.75	222.0	-1.1565	0.7467	0.1338
0.75	234.0	-0.2382	0.6088	0.0403
0.75	246.0	0.403	0.6817	0.0545
0.75	258.0	-0.0329	0.8838	0.0302
0.85	138.0	1.4966	0.7707	0.1714
0.85	222.0	0.183	0.5999	0.0364
0.85	234.0	-0.5737	0.6457	0.0713
0.85	246.0	0.0213	0.6821	0.0301

CLAS Physics Database