Measurement E151M2187

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:	1.0758
Q²:	0.4155 GeV²
W:	1265.0 GeV
E_beam:	2.999 GeV
ε:	0.9477

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.05	66.0	-1.3711	0.6173
0.15	66.0	-0.2816	0.6105
0.35	282.0	-0.7605	0.7154
0.45	282.0	2.2759	2.2759
0.45	294.0	0.6073	0.7384
0.55	78.0	0.6479	0.678
0.55	90.0	-0.4568	0.7569
0.55	270.0	1.2891	0.6144
0.55	282.0	-0.5343	0.6592
0.55	294.0	0.051	0.6104
0.55	306.0	-0.3085	0.6717
0.65	66.0	-0.0072	0.6242
0.65	78.0	-0.2644	0.7181
0.65	90.0	0.8997	0.6286
0.65	270.0	-0.8123	0.6682
0.65	282.0	0.4462	0.6375
0.65	294.0	-0.5319	0.5898
0.75	54.0	-1.5951	0.7042
0.75	66.0	0.2264	0.5739
0.75	78.0	1.4813	0.4377
0.75	90.0	0.9849	0.6363
0.75	102.0	0.2679	0.6559
0.75	258.0	0.2014	0.7169
0.75	270.0	-0.0334	0.5006
0.75	282.0	0.4671	0.5409
0.75	294.0	0.1751	0.5074
0.75	306.0	0.3948	0.5941
0.85	54.0	0.5773	0.6321
0.85	66.0	0.2133	0.5965
0.85	78.0	-0.0682	0.5808
0.85	90.0	0.6478	0.569
0.85	102.0	0.2456	0.6323
0.85	114.0	0.4287	0.7494
0.85	246.0	0.4639	0.6801
0.85	258.0	0.1081	0.5646
0.85	270.0	-1.1325	0.6056
0.85	282.0	0.3165	0.5417
0.85	294.0	0.7602	0.5035
0.85	306.0	0.7556	0.5988
0.85	318.0	0.8383	0.549
0.95	54.0	-0.0046	0.737
0.95	66.0	-0.3477	0.5681
0.95	78.0	-0.0206	0.7839
0.95	90.0	-0.1622	0.6941
0.95	114.0	1.1418	0.5828
0.95	246.0	0.9506	0.6372
0.95	258.0	0.8262	0.7798
0.95	270.0	0.4132	0.5359
0.95	282.0	0.4239	0.6894
0.95	294.0	0.1112	0.6679
0.95	318.0	-0.0692	0.7049

CLAS Physics Database