CLAS Physics Database

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Measurement E151M3214

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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 :	0.1435 GeV²
W :	1325 GeV
ε :	0.9461
E_beam :	2.2596 GeV
ε_L:	0.4607

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	0.4005	0.245	0.0311
0.25	294	-0.0508	0.2607	0.03
0.35	66	0.2123	0.2122	0.0303
0.35	78	-0.1333	0.2286	0.0301
0.35	294	-0.0877	0.2571	0.0301
0.45	66	0.0359	0.251	0.03
0.45	294	-0.1088	0.2534	0.0301
0.55	66	-0.095	0.2606	0.0301
0.65	102	0.3766	0.2169	0.0309
0.65	114	0.1205	0.26	0.0301
0.65	258	0.4148	0.2124	0.0311
0.65	270	-0.255	0.2154	0.0304
0.75	78	0.2817	0.2321	0.0305
0.75	90	0.1572	0.1876	0.0302
0.75	102	0.0495	0.2	0.03
0.75	114	-0.0961	0.1937	0.0301
0.75	126	-0.0318	0.2499	0.03
0.75	222	-0.164	0.256	0.0302
0.75	246	-0.2714	0.1906	0.0305
0.75	258	0.0142	0.1852	0.03
0.75	270	-0.3665	0.167	0.0309
0.75	282	-0.026	0.2272	0.03
0.75	294	-0.0803	0.238	0.03
0.85	90	-0.0216	0.1905	0.03
0.85	102	-0.076	0.1798	0.03
0.85	114	0.0409	0.1595	0.03
0.85	126	-0.0793	0.2227	0.03
0.85	138	-0.306	0.1976	0.0306
0.85	150	-0.0254	0.2518	0.03
0.85	222	-0.0759	0.2486	0.03
0.85	234	-0.1764	0.2068	0.0302
0.85	246	-0.1176	0.2047	0.0301
0.85	258	-0.0663	0.2017	0.03
0.85	270	-0.3297	0.1697	0.0307
0.85	282	0.0718	0.1645	0.03
0.85	294	-0.0229	0.2306	0.03
0.95	102	-0.1339	0.2531	0.0301
0.95	114	-0.0069	0.2156	0.03
0.95	126	0.5059	0.1804	0.0317
0.95	138	-0.166	0.2148	0.0302
0.95	150	-0.0874	0.2458	0.0301
0.95	162	0.0966	0.2575	0.0301
0.95	234	-0.3462	0.1991	0.0308
0.95	246	-0.0681	0.2286	0.03
0.95	258	-0.0059	0.2225	0.03
0.95	270	-0.4745	0.1834	0.0315
0.95	282	-0.1988	0.168	0.0303
0.25	306	0.1001	0.2682	0.0301
0.35	66	0.3068	0.1833	0.0306
0.35	306	0.0222	0.2666	0.03
0.45	66	-0.145	0.2521	0.0301
0.55	282	-0.1013	0.2313	0.0301
0.65	102	0.1282	0.2575	0.0301
0.65	258	0.2824	0.2116	0.0305
0.65	270	-0.0294	0.2243	0.03
0.65	282	0.4697	0.2326	0.0314
0.75	90	0.1943	0.2052	0.0303
0.75	102	0.1172	0.2393	0.0301
0.75	114	-0.142	0.2146	0.0301
0.75	126	-0.1164	0.2432	0.0301
0.75	234	-0.1381	0.2334	0.0301
0.75	246	-0.0306	0.2104	0.03
0.75	258	-0.0628	0.2022	0.03
0.75	270	0.0143	0.1946	0.03
0.75	282	-0.2127	0.2075	0.0303
0.85	90	0.137	0.2517	0.0301
0.85	102	-0.1499	0.1827	0.0301
0.85	114	0.2982	0.1829	0.0306
0.85	126	-0.3507	0.1983	0.0308
0.85	138	0.0439	0.2092	0.03
0.85	234	0.3254	0.214	0.0307
0.85	246	-0.0108	0.2142	0.03
0.85	258	0.2037	0.2003	0.0303
0.85	270	-0.1528	0.199	0.0302
0.85	282	-0.0011	0.2228	0.03
0.85	294	-0.1596	0.2264	0.0302
0.95	102	-0.034	0.2111	0.03
0.95	114	-0.2895	0.2566	0.0306
0.95	138	0.3287	0.2409	0.0307
0.95	150	-0.3506	0.2522	0.0308
0.95	222	-0.2632	0.253	0.0305
0.95	246	0.3341	0.2121	0.0307
0.95	258	-0.0992	0.2318	0.0301
0.95	270	-0.1651	0.2371	0.0302
0.95	282	-0.0239	0.237	0.03
0.95	294	-0.2913	0.2513	0.0306