CLAS Physics Database

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Measurement E151M2592

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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 :	0.0101 GeV²
W :	1415 GeV
ε :	0.7165
E_beam :	1.0539 GeV
ε_L:	0.0199

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
0.35	42	0.1933	0.2159	0.0302
0.35	54	0.061	0.1821	0.03
0.45	30	0.1766	0.235	0.0302
0.45	42	-0.1874	0.1595	0.0302
0.45	54	0.0308	0.1664	0.03
0.45	222	-0.277	0.2335	0.0305
0.45	234	0.1054	0.2212	0.0301
0.45	246	-0.1758	0.2324	0.0302
0.55	18	0.1907	0.2097	0.0302
0.55	30	-0.2367	0.198	0.0304
0.55	42	-0.0722	0.144	0.03
0.55	54	0.294	0.1545	0.0306
0.55	138	0.2596	0.2527	0.0304
0.55	150	-0.1585	0.2108	0.0302
0.55	210	-0.2666	0.2017	0.0305
0.55	222	-0.2131	0.2034	0.0303
0.55	234	0.0716	0.1573	0.03
0.55	246	0.4252	0.1566	0.0312
0.55	258	-0.2448	0.2409	0.0304
0.65	42	0.5543	0.2169	0.032
0.65	54	-0.094	0.225	0.0301
0.65	138	0.3534	0.2304	0.0308
0.65	150	0.0795	0.2181	0.03
0.65	162	-0.1266	0.1858	0.0301
0.65	174	0.3376	0.2237	0.0308
0.65	210	0.0209	0.2396	0.03
0.65	222	0.2262	0.1623	0.0303
0.65	234	-0.0504	0.1568	0.03
0.65	246	0.4227	0.1453	0.0312
0.65	258	-0.2045	0.2235	0.0303
0.75	150	0.2412	0.2314	0.0304
0.75	210	0.1053	0.2519	0.0301
0.75	222	-0.2584	0.1972	0.0304
0.75	234	0.0193	0.1798	0.03
0.75	246	-0.1879	0.1611	0.0302
0.75	258	-0.2507	0.2321	0.0304
0.85	210	0.1036	0.2437	0.0301
0.85	222	-0.1967	0.1941	0.0303
0.85	234	-0.2956	0.1559	0.0306
0.85	246	-0.6097	0.1494	0.0324