Measurement E151M1468

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:	0.528
Q²:	0.1205 GeV²
W:	1265.0 GeV
E_beam:	1.3383 GeV
ε:	0.8786

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.45	270.0	0.3771	0.6126
0.45	282.0	0.8721	0.4022
0.55	270.0	-1.1125	0.3306
0.55	282.0	0.8707	0.3725
0.55	294.0	-0.0225	0.5211
0.65	258.0	-0.5659	0.4153
0.65	270.0	-0.0172	0.3743
0.65	282.0	-0.2465	0.4351
0.65	294.0	0.7094	0.4386
0.75	126.0	0.8432	0.633
0.75	234.0	-0.0404	0.924
0.75	246.0	0.8514	0.447
0.75	258.0	0.2145	0.3804
0.75	270.0	0.1603	0.3638
0.75	282.0	0.0171	0.3427
0.75	294.0	0.0977	0.3646
0.85	90.0	1.0089	0.5699
0.85	102.0	-0.6113	0.3985
0.85	114.0	1.0423	0.4071
0.85	126.0	0.0675	0.3851
0.85	138.0	-0.4811	0.4059
0.85	150.0	-0.1554	0.4584
0.85	162.0	0.9986	0.5093
0.85	246.0	0.0084	0.3892
0.85	258.0	0.6048	0.3611
0.85	270.0	0.0368	0.3669
0.85	282.0	-0.0281	0.3591
0.85	294.0	0.1606	0.4233
0.95	66.0	1.4542	0.4611
0.95	78.0	-0.2395	0.538
0.95	102.0	0.8772	0.4407
0.95	114.0	0.4204	0.3712
0.95	126.0	-0.1565	0.3818
0.95	138.0	0.1918	0.4138
0.95	150.0	0.213	0.3816
0.95	162.0	1.2163	0.3677
0.95	174.0	-0.2947	0.4136
0.95	186.0	1.6249	1.6249
0.95	198.0	-1.2259	0.3542
0.95	210.0	-0.0331	0.8556
0.95	246.0	0.6044	0.6005
0.95	270.0	0.5336	0.3888
0.95	294.0	-1.1252	0.4453

CLAS Physics Database