Measurement E151M3562

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:	0.262
Q²:	0.496 GeV²
W:	1655.0 GeV
E_beam:	2.999 GeV
ε:	0.8315

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LU	uncertainty	syst. uncert.
0.45	102.0	-0.1165	0.2645	0.0301
0.55	102.0	0.0612	0.2429	0.03
0.65	234.0	-0.0289	0.2542	0.03
0.75	66.0	0.03	0.2708	0.03
0.75	102.0	-0.0227	0.2715	0.03
0.75	222.0	-0.2876	0.2305	0.0305
0.75	234.0	0.21	0.2529	0.0303
0.85	54.0	0.0443	0.2535	0.03
0.85	66.0	0.2572	0.2565	0.0304
0.85	78.0	-0.0912	0.2643	0.0301
0.85	210.0	-0.312	0.2726	0.0306
0.85	222.0	0.2563	0.2381	0.0304
0.85	234.0	-0.3197	0.2107	0.0307
0.85	246.0	-0.051	0.2508	0.03
0.85	258.0	-0.2217	0.2177	0.0303
0.85	270.0	0.047	0.2772	0.03
0.85	282.0	-0.5071	0.2267	0.0317
0.95	210.0	0.2915	0.2681	0.0306
0.95	222.0	0.496	0.228	0.0316
0.95	234.0	-0.1895	0.2552	0.0302
0.95	258.0	0.1936	0.2897	0.0302
0.95	270.0	0.18	0.2203	0.0302
0.95	294.0	-0.5536	0.2223	0.032
0.95	306.0	0.1747	0.2419	0.0302

CLAS Physics Database