CLAS Physics Database

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Measurement E151M2536

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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 :	1325 GeV
ε :	0.82
E_beam :	1.0539 GeV
ε_L:	0.1029

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	0.083	0.2361	0.03
0.25	30	0.1237	0.2336	0.0301
0.25	42	-0.1867	0.2104	0.0302
0.25	54	-0.3037	0.2161	0.0306
0.35	30	-0.135	0.2268	0.0301
0.35	42	-0.1139	0.189	0.0301
0.35	54	-0.1883	0.2331	0.0302
0.45	30	-0.0718	0.1612	0.03
0.45	42	-0.017	0.1782	0.03
0.45	54	0.0968	0.2002	0.0301
0.55	42	-0.0756	0.2104	0.03
0.55	54	-0.1098	0.2334	0.0301
0.55	234	0.1247	0.1615	0.0301
0.55	246	-0.0737	0.1557	0.03
0.55	258	-0.133	0.1433	0.0301
0.55	270	-0.0316	0.198	0.03
0.65	138	0.0246	0.2235	0.03
0.65	150	0.5334	0.1832	0.0318
0.65	162	0.003	0.2272	0.03
0.65	174	0.4756	0.2385	0.0315
0.65	186	0.1646	0.2546	0.0302
0.65	210	-0.3688	0.2305	0.0309
0.65	222	-0.2772	0.1686	0.0305
0.65	234	-0.0971	0.1408	0.0301
0.65	246	-0.336	0.1403	0.0307
0.65	258	-0.2605	0.1278	0.0304
0.65	270	-0.1593	0.1675	0.0302
0.75	138	0.1969	0.2047	0.0303
0.75	150	0.0396	0.1779	0.03
0.75	162	-0.1118	0.1852	0.0301
0.75	174	0.2195	0.1789	0.0303
0.75	186	0.0762	0.2186	0.03
0.75	222	-0.0765	0.1851	0.03
0.75	234	-0.102	0.1461	0.0301
0.75	246	0.3824	0.135	0.031
0.75	258	-0.1523	0.1354	0.0302
0.75	270	0.0795	0.1484	0.03
0.75	282	-0.0201	0.2492	0.03
0.85	138	0.0033	0.227	0.03
0.85	150	0.0206	0.2016	0.03
0.85	162	-0.2366	0.2103	0.0304
0.85	174	0.1099	0.2368	0.0301
0.85	222	0.1235	0.2309	0.0301
0.85	234	-0.3295	0.1587	0.0307
0.85	246	-0.085	0.1261	0.03
0.85	258	0.0783	0.1581	0.03
0.85	270	-0.3027	0.1363	0.0306
0.85	282	0.047	0.2429	0.03
0.95	138	-0.4413	0.2028	0.0313
0.95	246	-0.2868	0.1978	0.0305
0.95	258	0.1335	0.2605	0.0301