Measurement E151M1745

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:	0.4
Q²:	0.1205 GeV²
W:	1325.0 GeV
E_beam:	1.9889 GeV
ε:	0.9345

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.15	294.0	-0.9249	0.6757
0.15	306.0	0.829	0.6191
0.25	66.0	-0.0259	0.533
0.25	78.0	-0.049	0.6287
0.25	294.0	0.3798	0.6452
0.25	306.0	0.0213	0.7122
0.35	66.0	0.1055	0.5882
0.35	78.0	-0.5505	0.5806
0.35	294.0	0.0462	0.6309
0.35	306.0	-0.1419	0.7216
0.45	66.0	-0.6263	0.547
0.45	78.0	-0.8141	0.5495
0.45	282.0	-0.7496	0.6574
0.45	294.0	0.4605	0.6257
0.55	66.0	0.7389	0.6549
0.55	78.0	-0.0978	0.5911
0.55	258.0	0.2794	0.6987
0.55	270.0	-0.2743	0.5973
0.55	282.0	0.6824	0.6346
0.65	90.0	-0.1405	0.6966
0.65	102.0	-0.0444	0.6431
0.65	114.0	0.9287	0.6114
0.65	246.0	1.0639	0.6462
0.65	258.0	-1.0913	0.5151
0.65	270.0	-0.2022	0.5471
0.65	282.0	-0.3538	0.6387
0.75	90.0	0.1938	0.5979
0.75	102.0	-0.8014	0.5289
0.75	114.0	0.5977	0.525
0.75	126.0	0.606	0.5056
0.75	138.0	0.3653	0.6785
0.75	222.0	-1.1496	0.6541
0.75	234.0	0.4499	0.5986
0.75	246.0	0.0247	0.4668
0.75	258.0	0.4897	0.4592
0.75	270.0	-0.0957	0.4294
0.75	282.0	0.3674	0.4441
0.75	294.0	0.3087	0.6757
0.85	90.0	0.0393	0.5622
0.85	102.0	-0.2619	0.4555
0.85	114.0	0.9842	0.3899
0.85	126.0	0.0372	0.4285
0.85	138.0	0.0172	0.533
0.85	150.0	-0.2011	0.5647
0.85	162.0	-0.0356	0.6743
0.85	222.0	1.4536	0.5414
0.85	234.0	-0.4707	0.4286
0.85	246.0	1.4263	0.3823
0.85	258.0	0.5629	0.4333
0.85	270.0	-0.2511	0.3825
0.85	282.0	0.1036	0.4059
0.95	102.0	-1.2726	0.5
0.95	114.0	-0.0606	0.4769
0.95	126.0	-0.4486	0.4976
0.95	138.0	-0.2901	0.5225
0.95	150.0	0.0513	0.5637
0.95	162.0	-0.4083	0.5951
0.95	210.0	0.7013	0.5644
0.95	222.0	-0.953	0.5997
0.95	234.0	-0.2384	0.4391
0.95	246.0	0.5276	0.4102
0.95	258.0	-0.0437	0.4984
0.95	270.0	-0.1068	0.4538
0.95	282.0	0.0341	0.522

CLAS Physics Database