CLAS Physics Database

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Measurement E151M2998

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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 :	0.1435 GeV²
W :	1385 GeV
ε :	0.9081
E_beam :	1.9889 GeV
ε_L:	0.3289

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	66	-0.0931	0.2802	0.0301
0.25	66	-0.0864	0.2401	0.03
0.25	294	0.1017	0.2383	0.0301
0.35	66	-0.1164	0.2116	0.0301
0.35	78	0.6759	0.1807	0.0329
0.35	294	-0.1196	0.2375	0.0301
0.35	306	0.1724	0.2643	0.0302
0.45	66	-0.0433	0.2294	0.03
0.45	78	0.1183	0.2126	0.0301
0.45	282	-0.1412	0.2269	0.0301
0.45	294	-0.3272	0.2163	0.0307
0.55	258	0.3905	0.2372	0.031
0.55	282	-0.1699	0.2562	0.0302
0.65	102	-0.0447	0.2363	0.03
0.65	114	-0.0457	0.2054	0.03
0.65	126	-0.0467	0.2745	0.03
0.65	234	-0.0428	0.2623	0.03
0.65	246	0.1442	0.2695	0.0301
0.65	258	-0.3916	0.2186	0.031
0.65	270	0.0461	0.2493	0.03
0.75	90	-0.2085	0.19	0.0303
0.75	102	0.1655	0.1746	0.0302
0.75	114	0.0377	0.1959	0.03
0.75	126	-0.1954	0.1839	0.0303
0.75	138	-0.016	0.2056	0.03
0.75	234	0.4801	0.2196	0.0315
0.75	246	-0.0666	0.2035	0.03
0.75	258	-0.1072	0.2024	0.0301
0.75	270	-0.1582	0.186	0.0302
0.75	282	0.1875	0.2422	0.0302
0.85	78	0.0316	0.251	0.03
0.85	90	0.0793	0.2819	0.03
0.85	102	-0.1306	0.1905	0.0301
0.85	114	0.2571	0.1603	0.0304
0.85	126	-0.2408	0.196	0.0304
0.85	138	0.1935	0.2087	0.0302
0.85	150	-0.0982	0.2517	0.0301
0.85	210	0.3654	0.2369	0.0309
0.85	222	-0.6399	0.1598	0.0326
0.85	234	-0.2221	0.1867	0.0303
0.85	246	0.1515	0.191	0.0302
0.85	258	-0.1946	0.1824	0.0303
0.85	270	0.0478	0.1774	0.03
0.85	282	0.038	0.2382	0.03
0.95	78	0.0546	0.2624	0.03
0.95	126	-0.1321	0.2708	0.0301
0.95	138	0.6078	0.2072	0.0324
0.95	150	-0.4647	0.2501	0.0314
0.95	210	-0.5346	0.24	0.0318
0.95	222	-0.416	0.2147	0.0311
0.95	234	0.4419	0.2072	0.0313
0.95	246	0.1149	0.1965	0.0301
0.95	258	-0.1843	0.2147	0.0302
0.95	270	0.4508	0.162	0.0313
0.95	282	0.1818	0.1918	0.0302