Measurement E151M483

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_UL
ε_L:	1.0086
Q²:	0.2445 GeV²
W:	1235.0 GeV
E_beam:	1.9889 GeV
ε:	0.9264

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty	syst. uncert.
0.45	66.0	0.136	0.5483	0.0311
0.45	282.0	-0.253	0.481	0.0338
0.55	270.0	-0.4445	0.478	0.0405
0.55	282.0	-0.7005	0.4212	0.0523
0.65	270.0	0.449	0.4615	0.0407
0.65	282.0	0.4161	0.4908	0.0393
0.65	294.0	-0.1937	0.4642	0.0323
0.75	90.0	0.6914	0.6298	0.0519
0.75	102.0	0.5098	0.5544	0.0433
0.75	258.0	-0.4278	0.4775	0.0398
0.75	270.0	0.8543	0.5596	0.0603
0.75	294.0	-0.6114	0.4123	0.0479
0.85	78.0	0.7502	0.4977	0.0548
0.85	90.0	0.0144	0.4339	0.03
0.85	102.0	-0.2874	0.4344	0.0348
0.85	114.0	0.5551	0.462	0.0453
0.85	126.0	-0.0281	0.5463	0.03
0.85	258.0	-0.4597	0.4406	0.0411
0.85	270.0	0.3658	0.4782	0.0374
0.85	282.0	0.01	0.5362	0.03
0.85	294.0	0.4375	0.5517	0.0402
0.95	90.0	-0.5246	0.4472	0.0439
0.95	102.0	-0.3644	0.4071	0.0374
0.95	114.0	0.3013	0.4787	0.0352
0.95	138.0	-0.5041	0.4171	0.043

CLAS Physics Database