Measurement E151M1235

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:	0.5351
Q²:	0.0707 GeV²
W:	1205.0 GeV
E_beam:	1.0539 GeV
ε:	0.8863

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty	syst. uncert.
0.35	294.0	-0.2165	0.5414	0.0387
0.45	270.0	-1.2829	0.4658	0.1478
0.45	282.0	0.1178	0.4293	0.0328
0.45	294.0	0.2254	0.516	0.0393
0.55	270.0	-0.474	0.4169	0.0613
0.55	282.0	0.4736	0.3829	0.0613
0.65	258.0	-0.9742	0.4599	0.1139
0.65	270.0	-0.3088	0.4457	0.046
0.65	282.0	-1.0403	0.3771	0.1211
0.75	258.0	-0.4629	0.4838	0.0602
0.75	270.0	-0.3489	0.4249	0.0495
0.75	282.0	0.6141	0.4796	0.0755
0.85	150.0	0.1852	0.4131	0.0366
0.85	162.0	0.0709	0.4072	0.031
0.85	174.0	-0.0595	0.4101	0.0307
0.85	186.0	0.3184	0.4128	0.0468
0.85	198.0	-0.4714	0.4222	0.0611
0.85	210.0	0.5239	0.4061	0.0663
0.85	222.0	-0.0721	0.4524	0.0311
0.95	138.0	0.2938	0.3511	0.0447
0.95	150.0	0.3155	0.3511	0.0465
0.95	162.0	0.3456	0.3816	0.0492
0.95	174.0	-0.3921	0.3972	0.0534
0.95	186.0	0.0311	0.3199	0.0302
0.95	198.0	-0.0035	0.4068	0.03
0.95	210.0	0.6633	0.3599	0.0806

CLAS Physics Database