Measurement E151M4

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:	0.1373
Q²:	0.0143 GeV²
W:	1205.0 GeV
E_beam:	1.0539 GeV
ε:	0.9329

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty	syst. uncert.
0.55	258.0	-0.1061	0.4103	0.0323
0.55	270.0	0.8034	0.4374	0.0962
0.65	246.0	-0.0132	0.4613	0.03
0.65	258.0	0.1563	0.3403	0.0349
0.65	270.0	-0.045	0.3688	0.0304
0.75	162.0	0.259	0.5367	0.042
0.75	174.0	0.1849	0.5297	0.0366
0.75	186.0	-0.0636	0.4336	0.0309
0.75	198.0	-0.1488	0.4425	0.0344
0.75	210.0	-0.5339	0.4197	0.0677
0.75	222.0	-0.1241	0.451	0.0332
0.75	234.0	0.6638	0.5272	0.0813
0.75	258.0	-0.1127	0.3755	0.0326
0.85	174.0	0.2317	0.4508	0.0399
0.85	198.0	0.0269	0.4254	0.0302

CLAS Physics Database