CLAS Physics Database

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Measurement E151M2933

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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 :	0.0593 GeV²
W :	1265 GeV
ε :	0.9642
E_beam :	1.9889 GeV
ε_L:	0.3315

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	0.2079	0.2634	0.0303
0.25	66	-0.4381	0.1944	0.0313
0.25	294	0.258	0.2275	0.0304
0.25	306	-0.119	0.2013	0.0301
0.35	66	0.0584	0.1659	0.03
0.35	78	-0.1602	0.1667	0.0302
0.35	294	0.1045	0.2016	0.0301
0.35	306	0.2394	0.2521	0.0304
0.45	66	0.2255	0.1581	0.0303
0.45	78	0.0923	0.1227	0.0301
0.45	90	-0.1403	0.1617	0.0301
0.45	270	0.1491	0.2415	0.0301
0.45	282	0.3424	0.1923	0.0308
0.45	294	0.0454	0.2493	0.03
0.55	66	0.156	0.2109	0.0302
0.55	78	-0.0551	0.1487	0.03
0.55	90	0.1949	0.1578	0.0303
0.55	258	0.3014	0.2194	0.0306
0.55	270	0.0506	0.2143	0.03
0.55	282	-0.0288	0.1862	0.03
0.65	78	0.0447	0.1594	0.03
0.65	90	0.243	0.1625	0.0304
0.65	102	-0.1979	0.2266	0.0303
0.65	114	-0.1717	0.246	0.0302
0.65	246	-0.1557	0.1822	0.0302
0.65	258	-0.2227	0.1376	0.0303
0.65	270	-0.1245	0.1364	0.0301
0.65	282	-0.2188	0.1911	0.0303
0.75	90	0.5118	0.1675	0.0317
0.75	102	0.2661	0.1574	0.0305
0.75	114	0.095	0.1694	0.0301
0.75	126	-0.2472	0.1682	0.0304
0.75	138	0.3165	0.2046	0.0307
0.75	150	-0.2279	0.2418	0.0303
0.75	234	-0.0938	0.1759	0.0301
0.75	246	0.0399	0.136	0.03
0.75	258	0.2345	0.1246	0.0304
0.75	270	-0.1962	0.1361	0.0303
0.75	282	-0.4543	0.2093	0.0313
0.85	102	0.2035	0.2022	0.0303
0.85	114	-0.0191	0.1331	0.03
0.85	126	-0.0834	0.127	0.03
0.85	138	-0.0204	0.1303	0.03
0.85	150	-0.147	0.1441	0.0301
0.85	162	0.0559	0.1958	0.03
0.85	174	0.0294	0.189	0.03
0.85	186	0.5325	0.214	0.0318
0.85	198	0.1398	0.261	0.0301
0.85	210	-0.2225	0.2137	0.0303
0.85	222	-0.1824	0.1708	0.0302
0.85	234	0.1089	0.1588	0.0301
0.85	246	-0.0374	0.1403	0.03
0.85	258	0.1128	0.1427	0.0301
0.85	270	0.1056	0.1774	0.0301
0.95	114	0.124	0.244	0.0301
0.95	126	-0.0425	0.2315	0.03
0.95	138	-0.0018	0.1898	0.03
0.95	150	0.0555	0.1831	0.03
0.95	162	-0.0575	0.1843	0.03
0.95	174	0.1047	0.1836	0.0301
0.95	186	0.1058	0.2227	0.0301
0.95	198	-0.4272	0.2124	0.0312
0.95	210	-0.168	0.2711	0.0302
0.95	222	-0.3172	0.2429	0.0307
0.95	234	0.274	0.2407	0.0305
0.95	246	-0.0245	0.2359	0.03