Measurement E151M3612

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_LU
ε_L:	0.1279
Q²:	0.2915 GeV²
W:	1775.0 GeV
E_beam:	2.999 GeV
ε:	0.8175

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LU	uncertainty	syst. uncert.
0.75	90.0	0.5917	0.1883	0.0322
0.85	78.0	0.2937	0.2809	0.0306
0.85	90.0	0.3755	0.2478	0.0309
0.85	102.0	0.4327	0.2411	0.0312
0.85	186.0	0.0598	0.2323	0.03
0.85	198.0	0.1148	0.27	0.0301
0.85	210.0	0.1757	0.2358	0.0302
0.85	222.0	-0.063	0.2395	0.03
0.85	234.0	-0.1942	0.2303	0.0303
0.95	186.0	0.1575	0.2322	0.0302
0.95	198.0	0.0316	0.2676	0.03
0.95	210.0	0.3991	0.2499	0.031
0.95	234.0	0.1095	0.2197	0.0301
0.95	246.0	0.0222	0.2268	0.03
0.95	258.0	0.1047	0.26	0.0301

CLAS Physics Database