CLAS Physics Database

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Measurement E151M3441

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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 :	0.4155 GeV²
W :	1355 GeV
ε :	0.9338
E_beam :	2.999 GeV
ε_L:	0.7268

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
-0.05	66	0.0515	0.276	0.03
0.55	78	-0.1252	0.23	0.0301
0.55	90	0.2778	0.204	0.0305
0.55	102	-0.0216	0.2485	0.03
0.55	270	0.0993	0.249	0.0301
0.55	294	-0.6743	0.1865	0.0329
0.65	66	0.2606	0.2371	0.0304
0.65	78	0.2196	0.1974	0.0303
0.65	90	-0.2927	0.2353	0.0306
0.65	102	0.134	0.1785	0.0301
0.65	114	-0.0426	0.281	0.03
0.65	258	0.0763	0.2142	0.03
0.65	270	-0.0424	0.2515	0.03
0.65	282	0.0164	0.2084	0.03
0.65	294	-0.0787	0.2682	0.03
0.75	66	0.2096	0.2018	0.0303
0.75	78	-0.1257	0.1745	0.0301
0.75	90	0.0185	0.1854	0.03
0.75	102	-0.1112	0.2019	0.0301
0.75	114	0.2672	0.2237	0.0305
0.75	246	-0.1436	0.2586	0.0301
0.75	258	0.0381	0.2259	0.03
0.75	270	0.1665	0.1684	0.0302
0.75	282	-0.0167	0.1822	0.03
0.75	294	-0.2028	0.2046	0.0303
0.75	306	0.2535	0.1958	0.0304
0.75	318	-0.0509	0.2406	0.03
0.85	42	0.1605	0.2544	0.0302
0.85	66	0.1761	0.2267	0.0302
0.85	78	-0.0852	0.1833	0.03
0.85	90	-0.5047	0.148	0.0317
0.85	102	-0.2385	0.1673	0.0304
0.85	114	-0.0746	0.1877	0.03
0.85	222	0.3338	0.2307	0.0307
0.85	234	0.3958	0.1877	0.031
0.85	246	-0.0501	0.1998	0.03
0.85	258	0.2404	0.1831	0.0304
0.85	270	-0.3219	0.1595	0.0307
0.85	282	0.0952	0.1852	0.0301
0.85	294	-0.1703	0.1795	0.0302
0.85	306	0.2866	0.1758	0.0305
0.85	318	-0.1265	0.1836	0.0301
0.95	66	0.0639	0.2562	0.03
0.95	78	-0.4948	0.1875	0.0316
0.95	90	-0.2365	0.2312	0.0304
0.95	102	-0.1697	0.1954	0.0302
0.95	114	-0.2116	0.2646	0.0303
0.95	126	0.1153	0.2496	0.0301
0.95	138	0.5424	0.2268	0.0319
0.95	198	-0.1989	0.2591	0.0303
0.95	210	0.112	0.2591	0.0301
0.95	222	0.1043	0.2575	0.0301
0.95	234	0.0973	0.2196	0.0301
0.95	246	-0.267	0.1866	0.0305
0.95	258	0.13	0.2296	0.0301
0.95	270	0.3729	0.2033	0.0309
0.95	282	0.1019	0.2058	0.0301
0.95	294	0.227	0.2011	0.0303
0.95	306	0.8114	0.1229	0.0341
0.95	318	-0.3085	0.2228	0.0306
0.95	330	0.1227	0.2189	0.0301
0.95	342	0.12	0.2225	0.0301