CLAS Physics Database

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Measurement E151M2833

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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 :	0.0205 GeV²
W :	1505 GeV
ε :	0.7296
E_beam :	1.3383 GeV
ε_L:	0.0267

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	30	-0.5242	0.2607	0.0318
0.35	42	-0.4955	0.2719	0.0316
0.35	54	0.1001	0.4145	0.0301
0.45	18	0.3705	0.3144	0.0309
0.45	30	-0.2976	0.2486	0.0306
0.45	42	0.1255	0.3191	0.0301
0.45	138	0.0647	0.4218	0.03
0.45	222	0.3459	0.3142	0.0308
0.45	234	0.2005	0.3057	0.0303
0.55	18	-0.1042	0.2992	0.0301
0.55	30	-0.6466	0.2523	0.0327
0.55	42	-0.7139	0.1921	0.0332
0.55	138	0.0578	0.3409	0.03
0.55	150	0.2045	0.332	0.0303
0.55	162	0.2907	0.333	0.0306
0.55	198	0.5765	0.2899	0.0321
0.55	210	-0.0588	0.386	0.03
0.55	222	-0.06	0.2914	0.03
0.55	234	0.3889	0.2593	0.031
0.65	126	0.2241	0.3303	0.0303
0.65	138	0.1804	0.3455	0.0302
0.65	150	0.4349	0.3395	0.0312
0.65	162	0.4381	0.3191	0.0313
0.65	198	-0.7543	0.1827	0.0336
0.65	210	0.0429	0.2937	0.03
0.65	222	0.434	0.1917	0.0312
0.65	234	-0.408	0.2332	0.0311
0.65	246	-0.3055	0.2747	0.0306
0.75	138	-0.1575	0.3646	0.0302
0.75	150	-0.5214	0.2576	0.0318
0.75	162	-0.268	0.3311	0.0305
0.75	210	0.1285	0.2403	0.0301
0.75	222	-0.2189	0.2373	0.0303
0.75	234	-0.1512	0.2475	0.0302
0.75	246	-0.5768	0.2537	0.0321
0.85	126	0.3597	0.3325	0.0309
0.85	210	-0.2946	0.3043	0.0306
0.85	222	-0.1614	0.3253	0.0302
0.85	234	-0.2022	0.2674	0.0303
0.85	246	-0.5394	0.2801	0.0319
0.25	42	0.0035	0.2796	0.03
0.35	42	0.3356	0.2787	0.0307
0.45	18	0.0358	0.2586	0.03
0.45	30	-0.0492	0.2557	0.03
0.45	150	-0.0425	0.2505	0.03
0.45	210	-0.1961	0.2623	0.0303
0.45	222	-0.1541	0.2851	0.0302
0.45	234	0.1595	0.2567	0.0302
0.55	30	0.2391	0.2117	0.0304
0.55	42	-0.0632	0.2309	0.03
0.55	54	0.1798	0.2612	0.0302
0.55	126	0.249	0.2423	0.0304
0.55	138	0.497	0.1944	0.0316
0.55	150	0.2933	0.2149	0.0306
0.55	210	-0.0701	0.2411	0.03
0.55	222	0.0482	0.2317	0.03
0.55	234	0.3724	0.198	0.0309
0.55	246	0.0544	0.2596	0.03
0.65	126	0.401	0.2055	0.0311
0.65	138	-0.4392	0.1837	0.0313
0.65	150	-0.0265	0.2219	0.03
0.65	162	-0.0217	0.2727	0.03
0.65	210	-0.5047	0.1933	0.0317
0.65	222	0.158	0.1788	0.0302
0.65	234	0.2197	0.1761	0.0303
0.65	246	-0.0267	0.2212	0.03
0.75	138	0.2749	0.2066	0.0305
0.75	150	0.0974	0.2069	0.0301
0.75	162	0.0266	0.2537	0.03
0.75	210	0.1703	0.2177	0.0302
0.75	222	-0.1857	0.2104	0.0302
0.75	234	0.392	0.1779	0.031
0.75	246	-0.1378	0.2101	0.0301
0.85	126	-0.1039	0.2251	0.0301
0.85	138	0.3026	0.2499	0.0306
0.85	150	0.648	0.2415	0.0327
0.85	210	-0.1341	0.251	0.0301
0.85	222	0.1526	0.2404	0.0302
0.85	234	-0.0867	0.1861	0.0301
0.85	246	-0.0273	0.2562	0.03