CLAS Physics Database

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Measurement E151M3189

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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 :	1265 GeV
ε :	0.9578
E_beam :	2.2596 GeV
ε_L:	0.6494

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
0.35	66	0.1693	0.2438	0.0302
0.35	78	-0.3826	0.2021	0.031
0.45	66	0.3309	0.2158	0.0307
0.45	78	-0.2014	0.26	0.0303
0.65	270	-0.1384	0.2125	0.0301
0.65	282	-0.0393	0.2099	0.03
0.75	102	0.3138	0.2065	0.0306
0.75	114	0.1258	0.2558	0.0301
0.75	258	0.2695	0.2201	0.0305
0.75	270	0.0098	0.1865	0.03
0.75	282	0.0742	0.1756	0.03
0.85	90	-0.3956	0.2062	0.031
0.85	102	-0.0869	0.1923	0.0301
0.85	114	0.1845	0.2168	0.0302
0.85	126	0.0341	0.2467	0.03
0.85	258	0.3518	0.2058	0.0308
0.85	270	-0.1002	0.221	0.0301
0.85	282	0.3021	0.1912	0.0306
0.95	90	-0.0529	0.2245	0.03
0.95	114	0.1868	0.2278	0.0302
0.95	126	0.2377	0.0301
0.95	138	0.5858	0.212	0.0322
0.95	150	0.0736	0.2246	0.03
0.95	162	-0.0244	0.227	0.03
0.25	66	-0.3119	0.2121	0.0306
0.35	66	0.2554	0.1938	0.0304
0.45	66	0.3473	0.2009	0.0308
0.55	66	-0.1713	0.2588	0.0302
0.55	270	-0.152	0.2527	0.0302
0.65	270	-0.0854	0.1875	0.03
0.65	282	-0.1465	0.1883	0.0301
0.75	90	-0.1634	0.2497	0.0302
0.75	102	0.2846	0.2123	0.0305
0.75	114	-0.0198	0.2451	0.03
0.75	258	-0.1638	0.1782	0.0302
0.75	270	-0.0333	0.178	0.03
0.75	282	-0.1378	0.1887	0.0301
0.85	90	-0.0006	0.1987	0.03
0.85	102	-0.4273	0.213	0.0312
0.85	114	0.0587	0.1863	0.03
0.85	126	0.1053	0.2231	0.0301
0.85	246	0.0586	0.235	0.03
0.85	258	-0.0877	0.1873	0.0301
0.85	270	0.1028	0.1949	0.0301
0.85	282	0.2099	0.1869	0.0303
0.95	90	-0.1168	0.2398	0.0301
0.95	102	-0.0541	0.1951	0.03
0.95	114	0.1616	0.2119	0.0302
0.95	126	-0.2143	0.2323	0.0303
0.95	138	0.5569	0.1924	0.032
0.95	150	0.6337	0.2087	0.0326
0.95	258	-0.3112	0.244	0.0306