CLAS Physics Database

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Measurement E151M3210

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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 :	0.0707 GeV²
W :	1325 GeV
ε :	0.9605
E_beam :	2.2596 GeV
ε_L:	0.2674

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	306	-0.0227	0.1561	0.0308
0.25	66	-0.0397	0.1404	0.0301
0.25	78	-0.0216	0.1669	0.0301
0.25	294	0.2052	0.1538	0.0303
0.25	306	-0.1347	0.1367	0.0306
0.35	66	-0.0142	0.1167	0.0301
0.35	78	0.0723	0.1368	0.03
0.35	282	0.3792	0.1287	0.031
0.35	294	-0.0691	0.1198	0.03
0.35	306	0.2503	0.1285	0.0304
0.45	66	0.0455	0.1168	0.03
0.45	78	-0.0329	0.1041	0.0302
0.45	90	0.1757	0.206	0.0302
0.45	282	-0.0695	0.1349	0.03
0.45	294	0.0958	0.1172	0.0302
0.55	66	0.0595	0.1362	0.0301
0.55	78	0.3226	0.1076	0.0308
0.55	90	0.0268	0.1523	0.0301
0.55	102	0.139	0.2289	0.0301
0.55	258	-0.0311	0.2482	0.03
0.55	270	0.2083	0.1719	0.0303
0.55	282	-0.044	0.1423	0.03
0.55	294	0.1651	0.1608	0.0305
0.65	78	0.1506	0.1519	0.0302
0.65	90	0.1348	0.151	0.0302
0.65	102	0.1075	0.1359	0.0304
0.65	114	-0.0807	0.1328	0.0303
0.65	126	-0.0263	0.161	0.0301
0.65	234	0.0226	0.1575	0.03
0.65	246	0.345	0.1375	0.031
0.65	258	-0.0453	0.1297	0.0301
0.65	270	-0.1447	0.113	0.0311
0.65	282	0.0866	0.1351	0.0301
0.75	90	0.0717	0.151	0.0302
0.75	102	0.0563	0.1246	0.0301
0.75	114	-0.059	0.1113	0.0301
0.75	126	0.1583	0.1065	0.0302
0.75	138	0.0164	0.1331	0.0301
0.75	150	-0.0187	0.2612	0.03
0.75	222	0.0311	0.219	0.03
0.75	234	0.0064	0.1141	0.03
0.75	246	-0.0603	0.1081	0.03
0.75	258	0.1362	0.0963	0.0302
0.75	270	-0.0028	0.1137	0.03
0.75	282	-0.0883	0.1326	0.0301
0.85	102	0.0267	0.126	0.0302
0.85	114	0.0414	0.1095	0.03
0.85	126	0.0767	0.1112	0.0302
0.85	138	0.0669	0.1126	0.03
0.85	150	-0.0212	0.1184	0.03
0.85	162	-0.0777	0.16	0.03
0.85	174	0.4771	0.2348	0.0315
0.85	210	-0.03	0.1577	0.03
0.85	222	0.0267	0.1187	0.03
0.85	234	0.017	0.1073	0.03
0.85	246	-0.3151	0.0949	0.0307
0.85	258	-0.0321	0.0979	0.0302
0.85	270	0.1391	0.1111	0.0303
0.85	282	0.1931	0.1501	0.0303
0.95	114	0.4148	0.2258	0.0311
0.95	126	0.0459	0.1532	0.03
0.95	138	-0.1758	0.1456	0.0305
0.95	150	-0.1658	0.2155	0.0302
0.95	162	-0.0857	0.2554	0.03
0.95	174	0.1922	0.2664	0.0302
0.95	186	-0.3417	0.2235	0.0308
0.95	198	-0.0419	0.198	0.03
0.95	210	0.0229	0.255	0.03
0.95	222	-0.009	0.1354	0.0304
0.95	234	0.2889	0.1519	0.0306
0.95	246	-0.2236	0.138	0.0304
0.95	258	-0.1039	0.145	0.0301
0.95	270	-0.1642	0.2495	0.0302