CLAS Physics Database

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Measurement E151M3523

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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 :	0.348 GeV²
W :	1565 GeV
ε :	0.8936
E_beam :	2.999 GeV
ε_L:	0.2981

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	282	-0.3021	0.2801	0.0306
0.35	282	-0.2276	0.2391	0.0303
0.45	90	-0.0586	0.2326	0.03
0.45	114	-0.2231	0.2724	0.0303
0.45	282	-0.1719	0.2549	0.0302
0.55	90	0.3472	0.222	0.0308
0.55	102	-0.496	0.2433	0.0316
0.55	114	0.0734	0.2359	0.03
0.65	90	0.1928	0.1975	0.0302
0.65	102	0.1042	0.2164	0.0301
0.65	114	0.386	0.1817	0.031
0.65	126	-0.2223	0.2047	0.0303
0.65	222	0.1575	0.2649	0.0302
0.65	234	-0.2536	0.2361	0.0304
0.65	306	-0.1806	0.2396	0.0302
0.75	66	0.2327	0.2255	0.0304
0.75	78	0.0713	0.2761	0.03
0.75	90	-0.0515	0.2149	0.03
0.75	102	-0.0044	0.1849	0.03
0.75	114	-0.1444	0.1761	0.0301
0.75	126	0.0999	0.2742	0.0301
0.75	198	-0.0195	0.2738	0.03
0.75	210	0.4694	0.1808	0.0314
0.75	222	-0.1748	0.2145	0.0302
0.75	234	0.196	0.2211	0.0303
0.75	246	-0.0021	0.1935	0.03
0.75	258	-0.0657	0.2211	0.03
0.85	54	-0.1191	0.2138	0.0301
0.85	66	-0.1784	0.2051	0.0302
0.85	78	-0.2174	0.1897	0.0303
0.85	102	-0.2603	0.2109	0.0304
0.85	114	-0.0124	0.2271	0.03
0.85	198	-0.1633	0.2379	0.0302
0.85	210	-0.1995	0.1818	0.0303
0.85	222	-0.4121	0.1875	0.0311
0.85	234	0.0881	0.1696	0.0301
0.85	246	-0.2589	0.1726	0.0304
0.85	258	-0.2065	0.1549	0.0303
0.85	270	-0.14	0.1722	0.0301
0.85	282	-0.2153	0.2139	0.0303
0.85	294	-0.2715	0.2259	0.0305
0.95	78	-0.186	0.2722	0.0302
0.95	198	0.1699	0.2458	0.0302
0.95	210	-0.1733	0.2221	0.0302
0.95	222	-0.3548	0.195	0.0308
0.95	234	-0.2587	0.1854	0.0304
0.95	246	-0.0613	0.1963	0.03
0.95	258	-0.2846	0.186	0.0305
0.95	270	0.3826	0.1722	0.031
0.95	282	-0.1806	0.2097	0.0302
0.95	294	-0.0325	0.1789	0.03
0.95	306	-0.0112	0.2098	0.03
0.95	318	-0.32	0.1996	0.0307