CLAS Physics Database

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Measurement E151M2532

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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 :	0.0143 GeV²
W :	1325 GeV
ε :	0.8356
E_beam :	1.0539 GeV
ε_L:	0.0534

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
0.25	42	-0.3739	0.2126	0.0309
0.25	54	0.125	0.2133	0.0301
0.35	42	-0.0105	0.1837	0.03
0.35	54	0.2226	0.1787	0.0303
0.45	30	0.1598	0.2067	0.0302
0.45	42	-0.1706	0.1778	0.0302
0.45	54	0.0066	0.1872	0.03
0.45	246	0.1104	0.2594	0.0301
0.55	30	0.3827	0.1688	0.031
0.55	42	-0.0878	0.1374	0.0301
0.55	54	0.1432	0.1614	0.0301
0.55	138	-0.0527	0.2625	0.03
0.55	222	-0.1237	0.2113	0.0301
0.55	234	-0.1358	0.1611	0.0301
0.55	246	-0.2454	0.161	0.0304
0.55	258	-0.1494	0.1585	0.0301
0.55	270	-0.0069	0.246	0.03
0.65	42	-0.2606	0.2068	0.0304
0.65	54	-0.2926	0.2159	0.0306
0.65	138	0.151	0.251	0.0302
0.65	150	0.1719	0.1806	0.0302
0.65	162	-0.2449	0.2101	0.0304
0.65	174	0.1652	0.2108	0.0302
0.65	186	0.0377	0.2407	0.03
0.65	198	0.0937	0.2362	0.0301
0.65	210	-0.3738	0.216	0.0309
0.65	222	-0.0175	0.1686	0.03
0.65	234	-0.0113	0.1585	0.03
0.65	246	-0.0451	0.1309	0.03
0.65	258	-0.0722	0.153	0.03
0.65	270	0.1862	0.1814	0.0302
0.75	138	0.2185	0.197	0.0303
0.75	150	-0.0832	0.1984	0.03
0.75	162	-0.0224	0.1963	0.03
0.75	174	0.2085	0.1768	0.0303
0.75	198	-0.2216	0.2401	0.0303
0.75	222	0.0093	0.1618	0.03
0.75	234	0.1018	0.1391	0.0301
0.75	246	0.1134	0.1291	0.0301
0.75	258	0.08	0.1383	0.03
0.75	270	-0.2944	0.1835	0.0306
0.85	138	-0.0432	0.2367	0.03
0.85	162	0.3534	0.2414	0.0308
0.85	222	-0.2132	0.1691	0.0303
0.85	234	-0.1928	0.1408	0.0302
0.85	246	0.1666	0.1429	0.0302
0.85	258	-0.112	0.1529	0.0301
0.85	270	-0.2232	0.221	0.0303