CLAS Physics Database

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Measurement E151M3253

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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 :	1415 GeV
ε :	0.9222
E_beam :	2.2596 GeV
ε_L:	0.2911

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
0.35	66	0.0847	0.261	0.03
0.45	78	-0.0247	0.2336	0.03
0.45	282	-0.1792	0.2556	0.0302
0.45	294	-0.1051	0.2104	0.0301
0.65	102	0.367	0.2115	0.0309
0.65	114	0.283	0.2093	0.0305
0.65	246	-0.1425	0.2515	0.0301
0.75	90	0.3237	0.2136	0.0307
0.75	102	-0.0558	0.2013	0.03
0.75	114	-0.0622	0.182	0.03
0.75	126	-0.1439	0.2321	0.0301
0.75	138	-0.138	0.2515	0.0301
0.75	210	0.0839	0.2532	0.03
0.75	234	-0.1148	0.2281	0.0301
0.75	246	0.1257	0.2027	0.0301
0.75	258	0.188	0.2123	0.0302
0.75	270	-0.1757	0.2502	0.0302
0.85	102	0.4405	0.22	0.0313
0.85	114	-0.3282	0.1762	0.0307
0.85	126	-0.0448	0.2143	0.03
0.85	138	0.5138	0.2167	0.0317
0.85	222	0.0999	0.2411	0.0301
0.85	234	-0.0859	0.2203	0.03
0.85	246	0.0276	0.2163	0.03
0.85	258	0	0.1833	0.03
0.85	270	0.007	0.1979	0.03
0.95	234	-0.0908	0.251	0.0301
0.95	246	-0.2128	0.2308	0.0303
0.95	258	0.0591	0.211	0.03
0.95	270	-0.1941	0.2188	0.0303
0.95	282	0.3183	0.2189	0.0307
0.25	294	-0.1003	0.2414	0.0301
0.35	66	0.2364	0.2003	0.0304
0.35	294	0.2871	0.2348	0.0305
0.35	306	-0.2915	0.2427	0.0306
0.45	66	0.3665	0.2295	0.0309
0.45	78	-0.1084	0.2448	0.0301
0.45	282	-0.1429	0.2638	0.0301
0.45	294	-0.117	0.2361	0.0301
0.55	270	0.0895	0.2607	0.0301
0.55	282	-0.1256	0.255	0.0301
0.65	102	0.2395	0.1765	0.0304
0.65	114	0.0529	0.2251	0.03
0.65	246	-0.2541	0.2163	0.0304
0.75	90	0.1831	0.2065	0.0302
0.75	102	0.0598	0.1891	0.03
0.75	114	-0.0702	0.2074	0.03
0.75	126	-0.1479	0.2163	0.0301
0.75	138	-0.1518	0.252	0.0302
0.75	234	0.0343	0.2595	0.03
0.75	246	0.1668	0.1993	0.0302
0.75	258	0.0026	0.2389	0.03
0.75	270	-0.4532	0.2228	0.0313
0.85	90	-0.1753	0.2585	0.0302
0.85	102	-0.0369	0.2311	0.03
0.85	114	-0.42	0.2177	0.0312
0.85	126	-0.0951	0.1852	0.0301
0.85	138	0.1428	0.245	0.0301
0.85	222	0.1006	0.2614	0.0301
0.85	234	0.195	0.1785	0.0303
0.85	246	0.0122	0.2167	0.03
0.85	258	-0.2444	0.1777	0.0304
0.85	270	0.2867	0.1843	0.0305
0.85	282	-0.1127	0.226	0.0301
0.95	222	-0.3236	0.2075	0.0307
0.95	246	0.1147	0.2201	0.0301
0.95	258	0.1766	0.2203	0.0302
0.95	270	-0.4168	0.1825	0.0311
0.95	282	-0.1737	0.2111	0.0302