Measurement E151M3574

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:	0.2167
Q²:	0.4155 GeV²
W:	1685.0 GeV
E_beam:	2.999 GeV
ε:	0.8348

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LU	uncertainty	syst. uncert.
0.55	102.0	0.1576	0.243	0.0302
0.55	306.0	0.1744	0.2813	0.0302
0.65	102.0	-0.0549	0.2676	0.03
0.65	114.0	0.151	0.2723	0.0302
0.65	222.0	-0.3345	0.2538	0.0307
0.75	78.0	0.4457	0.2453	0.0313
0.75	222.0	0.0014	0.2773	0.03
0.75	234.0	0.3164	0.2823	0.0307
0.85	66.0	0.2177	0.2108	0.0303
0.85	78.0	-0.197	0.2428	0.0303
0.85	90.0	0.1818	0.2814	0.0302
0.85	198.0	0.3318	0.2444	0.0307
0.85	210.0	-0.3073	0.2421	0.0306
0.85	222.0	-0.535	0.2082	0.0319
0.85	234.0	0.2993	0.2177	0.0306
0.85	246.0	-0.0708	0.1987	0.03
0.85	258.0	-0.7053	0.1684	0.0332
0.85	270.0	0.2721	0.2296	0.0305
0.95	198.0	0.0666	0.2406	0.03
0.95	210.0	-0.4338	0.2281	0.0312
0.95	222.0	0.1068	0.2285	0.0301
0.95	234.0	0.0411	0.2139	0.03
0.95	246.0	-0.3633	0.2347	0.0309
0.95	258.0	0.0553	0.2214	0.03
0.95	270.0	0.0096	0.2364	0.03
0.95	282.0	-0.0755	0.2122	0.03
0.95	294.0	-0.4362	0.2426	0.0312

CLAS Physics Database