Measurement E151M1906

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:	0.0269
Q²:	0.0348 GeV²
W:	1655.0 GeV
E_beam:	1.9889 GeV
ε:	0.7866

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty	syst. uncert.
0.35	66.0	-0.347	0.9253	0.0366
0.35	270.0	0.4202	0.7564	0.0393
0.35	282.0	-1.1597	0.7416	0.0764
0.45	78.0	1.1372	0.7021	0.0752
0.45	90.0	-1.1445	0.8049	0.0756
0.45	126.0	0.0072	0.815	0.03
0.45	270.0	-0.5372	0.6	0.0443
0.45	282.0	-2.5542	2.5542	0.1577
0.45	294.0	-0.5635	0.7153	0.0455
0.45	330.0	-0.417	0.8159	0.0392
0.55	126.0	0.2955	0.6744	0.0349
0.55	138.0	-1.4934	0.7469	0.0953
0.55	198.0	-0.7977	0.8268	0.0569
0.55	210.0	0.2739	0.7943	0.0343
0.55	222.0	0.3627	0.8144	0.0372
0.55	258.0	-1.4447	0.6218	0.0925
0.55	270.0	-0.2323	0.7147	0.0331
0.55	282.0	-0.7694	0.7447	0.0554
0.65	66.0	-1.5843	0.7315	0.1006
0.65	114.0	0.0217	0.8684	0.03
0.65	126.0	-0.8381	0.7068	0.059
0.65	138.0	0.122	0.6598	0.0309
0.65	210.0	-0.8032	0.699	0.0572
0.65	222.0	-1.5738	0.6314	0.1
0.65	246.0	-1.4003	0.6502	0.09
0.65	282.0	1.0505	0.6314	0.0704
0.75	66.0	-1.6848	0.6579	0.1064
0.75	78.0	-0.4041	0.8228	0.0387
0.75	114.0	0.2056	0.8107	0.0325
0.75	126.0	0.6741	0.851	0.0507
0.75	198.0	-0.1503	0.8311	0.0314
0.75	210.0	-0.5076	0.6117	0.043
0.75	222.0	-1.2631	0.5622	0.0822
0.75	234.0	-0.5418	0.7171	0.0445
0.75	258.0	0.871	0.7005	0.0607
0.75	270.0	-0.1435	0.6025	0.0312
0.75	282.0	-0.2104	0.6011	0.0326
0.75	294.0	-0.9404	0.742	0.0644
0.85	114.0	-0.1202	0.6455	0.0309
0.85	126.0	0.0716	0.6651	0.0303
0.85	138.0	0.5786	0.8488	0.0461
0.85	198.0	0.0506	0.7699	0.0302
0.85	210.0	-0.6105	0.6772	0.0476
0.85	222.0	-0.5444	0.6884	0.0446

CLAS Physics Database