Measurement E151M2451

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:	0.2241
Q²:	0.0245 GeV²
W:	1205.0 GeV
E_beam:	1.0539 GeV
ε:	0.9247

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LU	uncertainty	syst. uncert.
0.25	54.0	0.0993	0.2356	0.0301
0.35	54.0	0.0311	0.2461	0.03
0.45	270.0	0.5418	0.2204	0.0319
0.45	282.0	0.218	0.2418	0.0303
0.55	258.0	-0.0834	0.2127	0.03
0.55	270.0	-0.1769	0.1852	0.0302
0.55	282.0	-0.0414	0.2194	0.03
0.65	246.0	-0.0467	0.2231	0.03
0.65	258.0	-0.2076	0.1698	0.0303
0.65	270.0	-0.2824	0.1504	0.0305
0.75	162.0	0.2088	0.1943	0.0303
0.75	174.0	-0.1797	0.2134	0.0302
0.75	186.0	-0.2579	0.2263	0.0304
0.75	198.0	-0.0674	0.2014	0.03
0.75	210.0	0.1536	0.2395	0.0302
0.75	234.0	-0.2799	0.2545	0.0305
0.75	246.0	0.1919	0.2203	0.0302
0.75	258.0	0.0466	0.1838	0.03
0.75	270.0	0.3171	0.241	0.0307
0.85	150.0	0.1712	0.2063	0.0302
0.85	162.0	0.2385	0.1948	0.0304
0.85	174.0	-0.1966	0.1889	0.0303
0.85	186.0	0.132	0.174	0.0301
0.85	198.0	0.3323	0.1957	0.0307
0.85	210.0	0.3364	0.2302	0.0307
0.85	222.0	-0.2984	0.2383	0.0306

CLAS Physics Database