CLAS Physics Database

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Measurement E151M3307

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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 :	0.101 GeV²
W :	1535 GeV
ε :	0.8875
E_beam :	2.2596 GeV
ε_L:	0.1269

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	-0.4419	0.2014	0.0313
0.35	78	-0.1042	0.1688	0.0302
0.35	282	0.3467	0.1634	0.0308
0.45	78	-0.0468	0.2679	0.03
0.45	270	-0.1478	0.2439	0.0301
0.45	282	-0.4003	0.2094	0.031
0.55	78	-0.0492	0.2639	0.03
0.55	114	0.4048	0.2411	0.0311
0.55	126	0.1373	0.255	0.0301
0.55	270	0.1719	0.2226	0.0302
0.55	282	0.1604	0.2441	0.0302
0.65	102	-0.0656	0.2316	0.03
0.65	114	-0.1436	0.2214	0.0301
0.65	126	-0.0113	0.2017	0.03
0.65	138	0.2606	0.2509	0.0304
0.65	222	-0.2423	0.2573	0.0304
0.65	234	-0.3603	0.2236	0.0309
0.65	246	0.0062	0.25	0.03
0.65	294	-0.2884	0.2424	0.0305
0.75	102	-0.697	0.1972	0.0331
0.75	114	0.0751	0.1892	0.03
0.75	126	0.0509	0.2331	0.03
0.75	138	-0.2288	0.2053	0.0303
0.75	210	-0.2355	0.2567	0.0304
0.75	222	0.2924	0.2303	0.0306
0.75	234	-0.4631	0.206	0.0314
0.75	246	-0.2808	0.1982	0.0305
0.75	258	-0.0589	0.2473	0.03
0.85	90	0.1062	0.2163	0.0301
0.85	102	-0.0134	0.2436	0.03
0.85	210	-0.4654	0.2452	0.0314
0.85	222	-0.2406	0.2321	0.0304
0.85	234	0.0616	0.2352	0.03
0.85	246	-0.0271	0.2026	0.03
0.85	258	-0.1285	0.2174	0.0301
0.95	246	0.2657	0.2154	0.0305
0.95	258	0.0134	0.2469	0.03
0.35	294	0.1218	0.2384	0.0301
0.45	66	0.2229	0.2455	0.0303
0.45	270	0.4442	0.2171	0.0313
0.45	282	-0.2103	0.199	0.0303
0.45	294	0.1585	0.2418	0.0302
0.55	114	-0.1088	0.2527	0.0301
0.55	126	-0.0895	0.1896	0.0301
0.55	258	-0.1461	0.2673	0.0301
0.55	270	0.0839	0.2285	0.03
0.55	282	-0.4144	0.2348	0.0311
0.65	66	0.0999	0.2641	0.0301
0.65	114	-0.2151	0.1947	0.0303
0.65	126	-0.3083	0.1848	0.0306
0.65	138	-0.3038	0.2458	0.0306
0.65	210	0.355	0.2351	0.0308
0.65	222	0.046	0.2517	0.03
0.65	234	0.1189	0.2226	0.0301
0.65	246	-0.182	0.2448	0.0302
0.65	294	0.234	0.2056	0.0304
0.65	306	-0.2797	0.2424	0.0305
0.75	102	0.1907	0.2348	0.0302
0.75	114	0.3041	0.1817	0.0306
0.75	126	0.0661	0.2077	0.03
0.75	138	-0.1068	0.2231	0.0301
0.75	198	-0.0679	0.2121	0.03
0.75	210	-0.0672	0.2549	0.03
0.75	222	-0.0626	0.1868	0.03
0.75	234	-0.1811	0.2511	0.0302
0.75	246	-0.2089	0.2243	0.0303
0.75	282	0.3454	0.2374	0.0308
0.75	294	-0.2979	0.2031	0.0306
0.85	102	0.1693	0.2735	0.0302
0.85	138	-0.0353	0.2321	0.03
0.85	198	-0.0695	0.2591	0.03
0.85	210	0.2807	0.2299	0.0305
0.85	222	-0.0933	0.2168	0.0301
0.85	234	-0.2693	0.185	0.0305
0.85	246	-0.2685	0.22	0.0305
0.85	258	0.2265	0.1865	0.0303
0.95	210	-0.2454	0.2583	0.0304
0.95	234	0.0798	0.2626	0.03
0.95	246	0.0864	0.2329	0.03
0.95	258	0.3757	0.1895	0.0309