Measurement E151M2351

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:	0.1955
Q²:	0.348 GeV²
W:	1685.0 GeV
E_beam:	2.999 GeV
ε:	0.8489

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.25	282.0	-0.1154	0.9058
0.45	282.0	-0.2143	0.8527
0.55	90.0	-0.0714	0.914
0.55	102.0	-0.6166	0.7552
0.55	234.0	-1.0201	0.9486
0.65	90.0	0.4826	0.8327
0.65	102.0	-0.6616	0.7447
0.65	114.0	-0.9571	0.7186
0.65	126.0	0.7184	0.8571
0.65	210.0	0.9543	0.8931
0.65	234.0	-0.8758	0.8909
0.65	306.0	0.0774	0.8367
0.75	66.0	-1.0775	0.8308
0.75	78.0	-0.7884	0.6799
0.75	90.0	0.2655	0.8571
0.75	114.0	0.1364	0.6827
0.75	126.0	0.0134	0.785
0.75	210.0	0.5314	0.7905
0.75	222.0	-1.3542	0.7325
0.75	234.0	0.4315	0.7999
0.75	246.0	-1.0463	0.7564
0.75	258.0	0.094	0.8018
0.85	66.0	-1.1598	0.6768
0.85	78.0	-0.0181	0.6667
0.85	90.0	0.5787	0.8452
0.85	102.0	0.1119	0.851
0.85	186.0	1.4327	0.7101
0.85	198.0	-0.337	0.7772
0.85	210.0	0.1686	0.6817
0.85	222.0	-0.1505	0.7515
0.85	234.0	-0.3607	0.5385
0.85	246.0	0.1456	0.6341
0.85	258.0	-0.8005	0.6411
0.95	198.0	0.5531	0.7653
0.95	210.0	0.4138	0.6721
0.95	222.0	-0.4312	0.7773
0.95	234.0	-0.2076	0.6305
0.95	246.0	-1.885	0.4951
0.95	258.0	-0.1816	0.5808
0.95	270.0	-0.4363	0.6295
0.95	282.0	-0.8113	0.522
0.95	294.0	-0.1159	0.7113

CLAS Physics Database