CLAS Physics Database

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Measurement E151M2598

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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 :	0.0291 GeV²
W :	1415 GeV
ε :	0.6928
E_beam :	1.0539 GeV
ε_L:	0.0537

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	-0.4514	0.1942	0.0313
0.25	54	0.2993	0.2257	0.0306
0.35	30	-0.3053	0.2411	0.0306
0.35	42	-0.091	0.1825	0.0301
0.35	54	-0.0869	0.177	0.0301
0.35	66	0.2502	0.2729	0.0304
0.45	30	0.4757	0.1914	0.0315
0.45	42	-0.1216	0.1693	0.0301
0.45	54	-0.1191	0.1622	0.0301
0.45	234	-0.0774	0.2625	0.03
0.45	246	-0.0682	0.2002	0.03
0.45	258	-0.2918	0.2379	0.0306
0.55	30	0.2066	0.2253	0.0303
0.55	42	0.2147	0.1785	0.0303
0.55	54	-0.1103	0.1949	0.0301
0.55	150	-0.2349	0.2327	0.0304
0.55	222	-0.0317	0.1927	0.03
0.55	234	0.2201	0.1765	0.0303
0.55	246	0.0228	0.1625	0.03
0.55	258	0.0481	0.1865	0.03
0.65	138	0.5341	0.2086	0.0318
0.65	150	-0.191	0.1985	0.0302
0.65	162	-0.1045	0.2118	0.0301
0.65	174	-0.2163	0.2355	0.0303
0.65	186	0.6523	0.1799	0.0327
0.65	210	0.0256	0.2127	0.03
0.65	222	-0.2529	0.1634	0.0304
0.65	234	-0.0786	0.1518	0.03
0.65	246	0.26	0.1363	0.0304
0.65	258	-0.2506	0.1703	0.0304
0.65	270	-0.2302	0.1981	0.0304
0.75	138	-0.1304	0.2015	0.0301
0.75	150	0.1281	0.2155	0.0301
0.75	162	-0.1962	0.2133	0.0303
0.75	174	0.1365	0.2168	0.0301
0.75	186	-0.2036	0.2446	0.0303
0.75	222	-0.1929	0.1847	0.0302
0.75	234	-0.1073	0.1429	0.0301
0.75	246	0.1053	0.1451	0.0301
0.75	258	0.0907	0.1653	0.0301
0.75	270	-0.5178	0.2211	0.0317
0.85	138	-0.3097	0.2401	0.0306
0.85	222	-0.1502	0.2035	0.0301
0.85	234	0.2759	0.163	0.0305
0.85	246	0.2812	0.1352	0.0305
0.85	258	0.1006	0.1599	0.0301
0.85	270	-0.1025	0.224	0.0301
0.95	258	-0.0975	0.2609	0.0301