Measurement E151M2988

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:	0.618
Q²:	0.348 GeV²
W:	1355.0 GeV
E_beam:	1.9889 GeV
ε:	0.8569

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LU	uncertainty	syst. uncert.
0.65	102.0	-0.1484	0.251	0.0301
0.65	270.0	0.1408	0.2541	0.0301
0.75	78.0	0.0012	0.2604	0.03
0.75	90.0	0.4691	0.2095	0.0314
0.75	102.0	-0.1511	0.24	0.0302
0.75	294.0	-0.122	0.2607	0.0301
0.85	90.0	-0.3278	0.2659	0.0307
0.85	102.0	0.4911	0.1857	0.0316
0.85	222.0	0.7393	0.2127	0.0334
0.85	234.0	0.2581	0.2501	0.0304
0.85	270.0	0.0692	0.256	0.03
0.85	282.0	-0.1138	0.2591	0.0301
0.85	294.0	-0.3307	0.2378	0.0307
0.95	234.0	0.1804	0.2877	0.0302
0.95	294.0	0.5616	0.2313	0.032

CLAS Physics Database