CLAS Physics Database

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Measurement E151M3059

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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 :	0.1205 GeV²
W :	1505 GeV
ε :	0.8592
E_beam :	1.9889 GeV
ε_L:	0.161

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	54	-0.104	0.2629	0.0301
0.25	66	0.1141	0.2291	0.0301
0.25	78	-0.0238	0.2621	0.03
0.25	282	-0.2414	0.2162	0.0304
0.25	294	-0.1315	0.2066	0.0301
0.35	66	-0.1137	0.2035	0.0301
0.35	78	0.429	0.2129	0.0312
0.35	270	-0.0878	0.2628	0.0301
0.35	282	0.0393	0.2191	0.03
0.35	294	0.0058	0.261	0.03
0.45	78	-0.16	0.233	0.0302
0.45	90	0.2207	0.2798	0.0303
0.45	270	-0.3529	0.238	0.0308
0.45	282	0.0001	0.2002	0.03
0.45	294	0.0478	0.2555	0.03
0.55	78	-0.1915	0.2613	0.0302
0.55	102	0.1305	0.2678	0.0301
0.55	114	-0.1744	0.2383	0.0302
0.55	126	0.1349	0.2637	0.0301
0.55	234	0.2773	0.2437	0.0305
0.55	270	-0.1155	0.2523	0.0301
0.55	282	-0.099	0.2298	0.0301
0.55	306	-0.0003	0.2727	0.03
0.65	102	-0.0211	0.2761	0.03
0.65	114	0.2242	0.1937	0.0303
0.65	126	0.0846	0.2411	0.03
0.65	138	-0.0874	0.2441	0.0301
0.65	150	-0.201	0.2486	0.0303
0.65	210	-0.0519	0.237	0.03
0.65	222	-0.2128	0.2425	0.0303
0.65	234	-0.0774	0.2156	0.03
0.65	246	0.1927	0.2341	0.0302
0.65	258	-0.2992	0.2575	0.0306
0.65	270	-0.0616	0.2895	0.03
0.65	294	-0.3115	0.2294	0.0306
0.65	306	-0.267	0.2649	0.0305
0.75	102	0.1815	0.225	0.0302
0.75	114	0.1981	0.1706	0.0303
0.75	126	0.2144	0.1837	0.0303
0.75	138	0.0475	0.2296	0.03
0.75	150	-0.0825	0.2725	0.03
0.75	198	0.2751	0.2171	0.0305
0.75	210	-0.3515	0.2023	0.0308
0.75	222	0.1696	0.1986	0.0302
0.75	234	-0.2247	0.1743	0.0303
0.75	246	-0.1622	0.1813	0.0302
0.75	258	0.0244	0.2175	0.03
0.75	294	0.2741	0.2022	0.0305
0.85	90	-0.0509	0.2122	0.03
0.85	102	0.211	0.2761	0.0303
0.85	114	0.2874	0.2241	0.0305
0.85	126	0.122	0.2547	0.0301
0.85	138	-0.3406	0.2218	0.0308
0.85	198	-0.2375	0.2533	0.0304
0.85	210	-0.2627	0.2277	0.0305
0.85	222	0.0077	0.1982	0.03
0.85	234	-0.2125	0.1787	0.0303
0.85	246	-0.0401	0.153	0.03
0.85	258	-0.0624	0.1901	0.03
0.85	270	-0.3159	0.2551	0.0307
0.95	102	-0.0355	0.2236	0.03
0.95	114	0.0582	0.2771	0.03
0.95	222	0.0869	0.2718	0.0301
0.95	234	-0.3557	0.2159	0.0308
0.95	246	0.088	0.2086	0.0301
0.95	258	-0.0687	0.2556	0.03
0.95	270	0.1461	0.228	0.0301