CLAS Physics Database

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Measurement E151M2500

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Experiment: EG4, 2016

Spokespersons: Xiaochao Zheng

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).

No publications available for this experiment

Quantity measured: A_LU,
Beam asymmetry.
Beam: e, polarization: longitudinal
Target: p (Z=1, A=1), polarization: longitudinal
Final state: π⁺n, polarization: none

Q² :	0.101 GeV²
W :	1265 GeV
ε :	0.8104
E_beam :	1.0539 GeV
ε_L:	0.4277

Select data slice:
cos(θ_π⁺) =

Observable quantity measured (Y axis): A_LU,
Plot measurement data

Parameter (X axis): φ(π⁺), degrees

Click here to get data in text file, delimited with tabs.

Measured data:

cos(θ_π⁺)	φ(π⁺), degrees	A_LU	Stat. error	Syst. error
0.05	42	-0.0581	0.2278	0.03
0.15	42	0.2115	0.2109	0.0303
0.15	54	0.3168	0.223	0.0307
0.25	42	-0.2883	0.1961	0.0305
0.35	282	0.1404	0.2436	0.0301
0.45	270	-0.1716	0.2219	0.0302
0.45	282	-0.0808	0.1714	0.03
0.45	294	0.0098	0.2372	0.03
0.55	258	-0.1792	0.1729	0.0302
0.55	270	-0.1752	0.1712	0.0302
0.55	282	-0.3018	0.1796	0.0306
0.55	294	-0.1692	0.2569	0.0302
0.65	246	0.3395	0.1839	0.0308
0.65	258	-0.1892	0.1635	0.0302
0.65	270	-0.0445	0.1597	0.03
0.65	282	-0.0333	0.1542	0.03
0.65	294	0.0646	0.1961	0.03
0.75	126	0.3679	0.2105	0.0309
0.75	150	0.0938	0.26	0.0301
0.75	234	-0.0679	0.2229	0.03
0.75	246	0.1421	0.2123	0.0301
0.75	258	-0.1691	0.1687	0.0302
0.75	270	0.2083	0.1333	0.0303
0.75	282	-0.3409	0.1795	0.0308
0.75	294	-0.0573	0.1682	0.03
0.85	114	-0.0885	0.2253	0.0301
0.85	126	0.3435	0.1638	0.0308
0.85	138	0.3114	0.1619	0.0306
0.85	150	-0.0891	0.1503	0.0301
0.85	162	0.0164	0.1742	0.03
0.85	174	0.1317	0.1549	0.0301
0.85	186	0.2224	0.1904	0.0303
0.85	198	-0.0882	0.195	0.0301
0.85	246	-0.0019	0.1951	0.03
0.85	258	-0.0518	0.1722	0.03
0.85	270	0.0966	0.1533	0.0301
0.85	282	-0.1402	0.1575	0.0301
0.85	294	0.0347	0.2253	0.03
0.95	114	0.4797	0.1884	0.0315
0.95	126	-0.1833	0.1793	0.0302
0.95	138	0.0479	0.2087	0.03
0.95	150	0.3051	0.1872	0.0306
0.95	162	-0.0753	0.1844	0.03
0.95	174	0.2075	0.1857	0.0303
0.95	186	-0.2934	0.1822	0.0306
0.95	198	0.1941	0.1975	0.0303
0.95	210	0.0348	0.2027	0.03
0.95	258	0.1084	0.2441	0.0301
0.95	270	-0.3915	0.2148	0.031