CLAS Physics Database

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Measurement E151M2517

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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 :	0.0496 GeV²
W :	1295 GeV
ε :	0.8313
E_beam :	1.0539 GeV
ε_L:	0.2028

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
0.15	42	-0.2666	0.2329	0.0305
0.25	42	0.2923	0.2352	0.0306
0.35	30	-0.118	0.2113	0.0301
0.35	42	-0.2883	0.2216	0.0305
0.45	42	0.0932	0.2308	0.0301
0.45	54	0.6678	0.1808	0.0328
0.45	270	-0.0185	0.2235	0.03
0.45	282	-0.0056	0.2573	0.03
0.55	246	-0.443	0.1998	0.0313
0.55	258	0.052	0.1699	0.03
0.55	270	-0.0773	0.1556	0.03
0.55	282	-0.094	0.2009	0.0301
0.65	234	-0.2931	0.1676	0.0306
0.65	246	-0.0188	0.1464	0.03
0.65	258	0.0479	0.1277	0.03
0.65	270	-0.0901	0.1411	0.0301
0.65	282	0.0967	0.181	0.0301
0.75	126	-0.0687	0.2092	0.03
0.75	138	0.1702	0.178	0.0302
0.75	150	-0.1272	0.1894	0.0301
0.75	162	0.2007	0.1968	0.0303
0.75	174	0.2242	0.183	0.0303
0.75	186	-0.1652	0.2195	0.0302
0.75	198	0.0531	0.2504	0.03
0.75	222	-0.0667	0.2185	0.03
0.75	234	0.1063	0.1643	0.0301
0.75	246	-0.0248	0.1328	0.03
0.75	258	0.0113	0.1319	0.03
0.75	270	-0.2703	0.1265	0.0305
0.75	282	-0.238	0.1827	0.0304
0.75	294	0.1937	0.2384	0.0302
0.85	126	0.1739	0.1837	0.0302
0.85	138	0.0853	0.1813	0.03
0.85	150	-0.0493	0.1674	0.03
0.85	162	-0.1343	0.1635	0.0301
0.85	174	0.0244	0.18	0.03
0.85	186	-0.1234	0.1833	0.0301
0.85	198	0.3153	0.2207	0.0307
0.85	222	-0.1974	0.2584	0.0303
0.85	234	-0.2386	0.1995	0.0304
0.85	246	-0.2511	0.1299	0.0304
0.85	258	-0.1609	0.1248	0.0302
0.85	270	0.0581	0.1408	0.03
0.85	282	-0.0373	0.1657	0.03
0.95	114	-0.4455	0.2316	0.0313
0.95	126	0.0969	0.2448	0.0301
0.95	138	-0.0303	0.2267	0.03
0.95	150	0.0737	0.1996	0.03
0.95	162	0.3819	0.232	0.031
0.95	174	0.0877	0.245	0.0301
0.95	258	-0.446	0.1876	0.0313
0.95	270	-0.7897	0.169	0.0339