Measurement E151M1761

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:	0.3844
Q²:	0.1435 GeV²
W:	1355.0 GeV
E_beam:	1.9889 GeV
ε:	0.9189

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.25	66.0	-0.4603	0.666
0.25	294.0	0.0293	0.6017
0.35	66.0	0.0113	0.7483
0.35	78.0	0.2601	0.6782
0.45	78.0	0.6478	0.5691
0.45	294.0	-1.1215	0.6191
0.55	66.0	0.7692	0.5787
0.55	78.0	0.5425	0.7172
0.55	282.0	0.0078	0.7228
0.65	90.0	-0.5886	0.7624
0.65	102.0	0.9003	0.6195
0.65	114.0	-1.1799	0.6053
0.65	246.0	0.2179	0.7272
0.65	258.0	-0.1414	0.5697
0.65	270.0	0.1601	0.5177
0.65	282.0	-0.0126	0.807
0.75	90.0	-0.1246	0.6126
0.75	102.0	0.0395	0.4644
0.75	114.0	-0.2738	0.5145
0.75	126.0	-0.4012	0.6014
0.75	138.0	-0.5709	0.7059
0.75	222.0	0.3078	0.6981
0.75	234.0	0.5094	0.6588
0.75	246.0	-0.1287	0.4889
0.75	258.0	-0.0749	0.4775
0.75	270.0	-0.2841	0.5127
0.75	282.0	0.8111	0.8051
0.75	294.0	0.0668	0.741
0.85	90.0	0.699	0.5628
0.85	102.0	1.0308	0.4465
0.85	114.0	0.1113	0.5108
0.85	126.0	-0.0343	0.4717
0.85	138.0	1.0472	0.5354
0.85	150.0	0.2994	0.7401
0.85	162.0	0.2798	0.8395
0.85	222.0	-0.906	0.5127
0.85	234.0	-0.4621	0.5116
0.85	246.0	-0.1431	0.5151
0.85	258.0	0.3267	0.5104
0.85	270.0	-0.3928	0.4063
0.85	282.0	-0.2758	0.4063
0.85	294.0	1.8399	0.5242
0.95	78.0	-0.1315	0.6722
0.95	102.0	-0.4405	0.667
0.95	114.0	-0.413	0.589
0.95	126.0	-0.606	0.551
0.95	138.0	0.2626	0.6305
0.95	150.0	-0.5865	0.6399
0.95	222.0	0.512	0.5601
0.95	234.0	0.6143	0.6008
0.95	246.0	-0.3698	0.4994
0.95	258.0	-0.2964	0.4646
0.95	270.0	0.7711	0.4613
0.95	282.0	0.6704	0.4264

CLAS Physics Database