CLAS Physics Database

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Measurement E151M3082

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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 :	0.0348 GeV²
W :	1565 GeV
ε :	0.8546
E_beam :	1.9889 GeV
ε_L:	0.0407

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
0.25	66	-0.1816	0.2624	0.0302
0.25	78	0.316	0.2586	0.0307
0.35	66	-0.5654	0.2018	0.0321
0.35	78	-0.1247	0.2212	0.0301
0.35	90	0.3499	0.2069	0.0308
0.35	270	-0.0754	0.237	0.03
0.35	282	-0.3102	0.2069	0.0306
0.45	66	-0.3723	0.2132	0.0309
0.45	78	0.0685	0.218	0.03
0.45	90	0.2279	0.2199	0.0303
0.45	126	-0.0195	0.2341	0.03
0.45	258	-0.3445	0.2414	0.0308
0.45	270	0.0589	0.2179	0.03
0.45	282	-0.0591	0.2067	0.03
0.45	294	-0.3333	0.2745	0.0307
0.55	78	-0.3945	0.1964	0.031
0.55	90	0.3061	0.2487	0.0306
0.55	114	-0.0742	0.2648	0.03
0.55	126	-0.0361	0.215	0.03
0.55	138	0.1747	0.2677	0.0302
0.55	150	0.1165	0.25	0.0301
0.55	186	-0.1979	0.2704	0.0303
0.55	198	0.2326	0.2563	0.0304
0.55	210	0.4325	0.234	0.0312
0.55	222	0.0094	0.221	0.03
0.55	234	0.0757	0.2277	0.03
0.55	246	0.5418	0.2123	0.0319
0.55	258	-0.1232	0.1815	0.0301
0.55	270	0.2755	0.1959	0.0305
0.55	282	-0.0348	0.2108	0.03
0.55	294	-0.0949	0.2578	0.0301
0.65	66	0.3661	0.2344	0.0309
0.65	78	-0.1885	0.2474	0.0302
0.65	90	-0.1886	0.2275	0.0302
0.65	102	-0.0636	0.2354	0.03
0.65	114	0.1449	0.2135	0.0301
0.65	126	0.1121	0.1952	0.0301
0.65	138	-0.1867	0.1997	0.0302
0.65	150	0.1934	0.2432	0.0302
0.65	198	0.3475	0.2159	0.0308
0.65	210	-0.2012	0.2203	0.0303
0.65	222	0.0643	0.2174	0.03
0.65	234	-0.7059	0.1798	0.0332
0.65	246	-0.0306	0.2547	0.03
0.65	258	-0.2069	0.2455	0.0303
0.65	270	0.1031	0.2825	0.0301
0.65	282	0.3911	0.2231	0.031
0.65	294	0.2435	0.2878	0.0304
0.75	66	-0.1124	0.225	0.0301
0.75	78	-0.4425	0.2487	0.0313
0.75	90	0.0455	0.2873	0.03
0.75	114	-0.0895	0.2734	0.0301
0.75	126	0.319	0.2178	0.0307
0.75	138	0.0566	0.2101	0.03
0.75	150	0.1452	0.2459	0.0301
0.75	198	-0.7932	0.1508	0.0339
0.75	210	0.0587	0.1706	0.03
0.75	222	-0.1007	0.1786	0.0301
0.75	234	0.0744	0.1845	0.03
0.75	246	0.4432	0.2244	0.0313
0.75	258	-0.3597	0.2634	0.0309
0.75	270	-0.1282	0.1821	0.0301
0.75	282	0.033	0.1587	0.03
0.75	294	0.0946	0.2247	0.0301
0.85	102	0.6892	0.181	0.033
0.85	114	-0.101	0.2051	0.0301
0.85	126	-0.2899	0.2287	0.0306
0.85	138	0.7266	0.1978	0.0333
0.85	198	0.2394	0.2329	0.0304
0.85	210	-0.2106	0.204	0.0303
0.85	222	-0.2539	0.1996	0.0304
0.85	234	-0.1458	0.2078	0.0301
0.85	270	-0.0424	0.2672	0.03
0.95	210	-0.3218	0.2794	0.0307
0.95	222	0.1988	0.2628	0.0303