CLAS Physics Database

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Measurement E151M3593

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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 :	1745 GeV
ε :	0.8728
E_beam :	2.999 GeV
ε_L:	0.0604

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	-0.1663	0.2846	0.0302
0.35	78	-0.4041	0.2658	0.0311
0.35	270	0.2968	0.2484	0.0306
0.45	114	-0.2084	0.2778	0.0303
0.45	126	-0.2459	0.2509	0.0304
0.45	258	-0.0505	0.2475	0.03
0.45	270	0.0315	0.2186	0.03
0.55	102	0.0544	0.2559	0.03
0.55	114	-0.2878	0.2225	0.0305
0.55	126	-0.111	0.2333	0.0301
0.55	138	-0.3038	0.2748	0.0306
0.55	198	0.2345	0.2538	0.0304
0.55	210	0.364	0.2407	0.0309
0.55	258	0.4822	0.2023	0.0315
0.55	270	-0.0308	0.2457	0.03
0.65	54	-0.1484	0.2655	0.0301
0.65	102	-0.0333	0.2837	0.03
0.65	114	-0.3075	0.1907	0.0306
0.65	126	0.2502	0.188	0.0304
0.65	138	-0.0132	0.2603	0.03
0.65	186	0.0539	0.2218	0.03
0.65	198	-0.0963	0.2082	0.0301
0.65	210	-0.57	0.2119	0.0321
0.65	222	0.3323	0.1768	0.0307
0.65	234	0.3057	0.2551	0.0306
0.65	246	0.1844	0.2444	0.0302
0.65	270	-0.321	0.2354	0.0307
0.65	282	-0.3799	0.2267	0.0309
0.65	294	-0.1318	0.2693	0.0301
0.75	90	-0.1012	0.2249	0.0301
0.75	102	0.2088	0.2006	0.0303
0.75	114	-0.5425	0.1872	0.0319
0.75	126	0.1218	0.2272	0.0301
0.75	138	-0.1475	0.2436	0.0301
0.75	150	0.1444	0.2721	0.0301
0.75	162	-0.2138	0.2667	0.0303
0.75	174	0.4616	0.2383	0.0314
0.75	186	0.0199	0.2242	0.03
0.75	198	0	0.1903	0.03
0.75	210	0.0689	0.1704	0.03
0.75	222	-0.0476	0.2083	0.03
0.75	234	0.1539	0.2184	0.0302
0.75	246	-0.2817	0.2118	0.0305
0.75	258	0.2596	0.228	0.0304
0.75	270	0.2124	0.1748	0.0303
0.75	282	-0.0657	0.2001	0.03
0.75	294	0.1515	0.1947	0.0302
0.85	90	0.2688	0.1831	0.0305
0.85	102	0.0422	0.1812	0.03
0.85	114	0.1233	0.1579	0.0301
0.85	126	-0.2301	0.2037	0.0304
0.85	138	0.2071	0.2747	0.0303
0.85	162	0.0717	0.2125	0.03
0.85	174	0.0601	0.2297	0.03
0.85	186	-0.0887	0.2083	0.0301
0.85	198	-0.0749	0.1645	0.03
0.85	210	-0.3537	0.161	0.0308
0.85	222	0.1538	0.1496	0.0302
0.85	234	-0.3724	0.202	0.0309
0.85	246	0.3481	0.2291	0.0308
0.85	258	-0.3592	0.2437	0.0308
0.85	270	-0.0393	0.2309	0.03
0.85	282	0.5503	0.2069	0.032
0.95	174	-0.2224	0.2659	0.0303
0.95	186	-0.3233	0.2621	0.0307
0.95	198	0.0598	0.212	0.03
0.95	210	0.2272	0.1847	0.0303
0.95	222	0.1304	0.2188	0.0301
0.95	234	-0.04	0.2261	0.03