Measurement E151M2020

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:	0.4753
Q²:	0.2445 GeV²
W:	1385.0 GeV
E_beam:	2.2596 GeV
ε:	0.9078

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.65	90.0	-1.6859	1.3385
0.65	102.0	-1.0065	1.3692
0.75	90.0	-1.0251	1.3045
0.75	102.0	1.1651	1.3896
0.75	246.0	0.305	1.1653
0.75	258.0	1.9178	1.0464
0.75	282.0	-0.5555	1.0795
0.85	102.0	-0.6028	1.596
0.85	114.0	0.4105	1.4971
0.85	222.0	0.0814	1.3529
0.85	246.0	1.7908	1.3252
0.85	258.0	-0.022	1.1481
0.85	270.0	0.0808	1.2894
0.85	282.0	-0.342	1.1144
0.85	294.0	-0.8486	1.0488
0.95	246.0	-0.6305	3.7243
0.95	282.0	-7.9673	2.7402
0.95	294.0	-1.129	3.5375
0.55	102.0	-0.1963	0.7622
0.65	102.0	0.2531	0.6468
0.65	258.0	-0.9471	0.7357
0.75	90.0	1.6623	0.5682
0.75	102.0	-0.3894	0.6305
0.75	114.0	-0.4166	0.7757
0.75	246.0	-1.6568	0.5754
0.75	258.0	0.8949	0.744
0.75	270.0	0.6096	0.7575
0.85	102.0	1.7166	0.636
0.85	210.0	-0.2889	0.9255
0.85	234.0	-1.4623	0.881
0.85	246.0	0.7795	0.8329
0.85	258.0	-0.106	0.7281
0.85	270.0	-0.7737	0.7319
0.85	282.0	-0.0173	0.6126
0.95	282.0	1.0785	1.0095
0.95	294.0	1.1111	1.1079
0.95	306.0	1.1565	1.0763

CLAS Physics Database