Measurement E151M2173

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:	0.9733
Q²:	0.205 GeV²
W:	1235.0 GeV
E_beam:	2.999 GeV
ε:	0.9737

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.15	66.0	-0.2713	0.6451
0.25	54.0	-0.2224	0.7592
0.25	66.0	0.3311	0.5368
0.35	66.0	-0.3799	0.4906
0.35	78.0	0.2119	0.6605
0.35	282.0	0.8103	0.6235
0.35	294.0	0.1806	0.6971
0.45	66.0	0.2722	0.6029
0.45	78.0	-0.3983	0.6282
0.45	282.0	0.6877	0.4877
0.45	294.0	-0.175	0.474
0.55	66.0	-1.3254	0.5735
0.55	78.0	0.1683	0.7162
0.55	270.0	1.5544	0.5325
0.55	282.0	0.0613	0.4401
0.55	294.0	-0.507	0.4268
0.65	66.0	-0.1399	0.6568
0.65	78.0	-0.125	0.5874
0.65	90.0	-1.2099	0.6655
0.65	270.0	0.6258	0.3766
0.65	282.0	0.8	0.3304
0.65	294.0	-0.1383	0.3855
0.75	66.0	-0.4915	0.5066
0.75	78.0	-0.3299	0.4576
0.75	90.0	0.562	0.432
0.75	102.0	-0.2056	0.5203
0.75	114.0	0.542	0.8494
0.75	258.0	-0.4149	0.4635
0.75	270.0	0.5561	0.3859
0.75	282.0	-0.6332	0.3799
0.75	294.0	0.1938	0.4588
0.75	306.0	1.5015	0.5663
0.85	54.0	-0.3062	0.6426
0.85	66.0	-0.2636	0.3869
0.85	78.0	0.2825	0.3865
0.85	90.0	0.3415	0.3642
0.85	102.0	0.1538	0.3743
0.85	114.0	-0.7285	0.4828
0.85	126.0	-1.029	0.7833
0.85	246.0	-1.1485	0.5858
0.85	258.0	0.3952	0.5356
0.85	270.0	0.5566	0.4312
0.85	282.0	0.2088	0.3892
0.85	294.0	-0.7004	0.4474
0.85	306.0	-0.0519	0.5942
0.95	42.0	-0.4135	0.6677
0.95	54.0	-0.3613	0.5834
0.95	66.0	-0.1775	0.4588
0.95	78.0	0.4565	0.4268
0.95	90.0	0.0367	0.4002
0.95	102.0	0.4823	0.4313
0.95	114.0	0.5995	0.4679
0.95	126.0	-0.2271	0.4686
0.95	138.0	-0.3577	0.548
0.95	150.0	0.7776	0.5799
0.95	162.0	-0.8745	0.6762
0.95	174.0	0.6168	0.7366
0.95	210.0	-0.2041	0.748
0.95	234.0	0.3984	0.5999
0.95	246.0	-0.0	0.6252
0.95	258.0	0.0825	0.5498
0.95	270.0	-0.3388	0.5351
0.95	282.0	-0.3105	0.5414
0.95	294.0	0.6523	0.58
0.95	306.0	0.2023	0.6709

CLAS Physics Database