CLAS Physics Database

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Measurement E151M2476

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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 :	0.0593 GeV²
W :	1235 GeV
ε :	0.8751
E_beam :	1.0539 GeV
ε_L:	0.3683

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	42	0.2993	0.2434	0.0306
0.15	42	-0.0791	0.181	0.03
0.15	54	0.1761	0.1998	0.0302
0.25	42	0.1668	0.1989	0.0302
0.25	54	-0.0298	0.2215	0.03
0.35	42	0.1895	0.2419	0.0302
0.45	270	0.1342	0.196	0.0301
0.45	282	-0.1031	0.1649	0.0301
0.45	294	0.1753	0.2663	0.0302
0.55	258	-0.058	0.1692	0.03
0.55	270	-0.187	0.1594	0.0302
0.55	282	-0.1146	0.1454	0.0301
0.55	294	0.1692	0.2174	0.0302
0.65	246	-0.137	0.1727	0.0301
0.65	258	0.0656	0.1357	0.03
0.65	270	-0.1326	0.1221	0.0301
0.65	282	0.1305	0.1558	0.0301
0.65	294	-0.2265	0.2211	0.0303
0.75	138	-0.1794	0.2558	0.0302
0.75	150	-0.1046	0.2313	0.0301
0.75	162	0.1955	0.2334	0.0303
0.75	246	-0.0012	0.2002	0.03
0.75	258	-0.057	0.1332	0.03
0.75	270	-0.083	0.1337	0.03
0.75	282	-0.1428	0.1832	0.0301
0.75	294	-0.366	0.2356	0.0309
0.85	126	-0.1757	0.2031	0.0302
0.85	138	-0.2217	0.1751	0.0303
0.85	150	0.0073	0.1594	0.03
0.85	162	0.1695	0.1696	0.0302
0.85	174	-0.3387	0.1581	0.0308
0.85	186	-0.0053	0.162	0.03
0.85	198	0.1372	0.1805	0.0301
0.85	210	0.0894	0.2056	0.0301
0.85	222	0.0952	0.2712	0.0301
0.85	234	-0.2107	0.2596	0.0303
0.85	246	0.1424	0.1883	0.0301
0.85	258	0.1041	0.1653	0.0301
0.85	270	-0.2504	0.1545	0.0304
0.85	282	-0.0345	0.2444	0.03
0.95	126	0.5116	0.1887	0.0317
0.95	138	0.0314	0.1927	0.03
0.95	150	0.0632	0.1804	0.03
0.95	162	-0.1019	0.1933	0.0301
0.95	174	-0.0156	0.2005	0.03
0.95	186	0.2073	0.1854	0.0303
0.95	198	-0.0351	0.2346	0.03
0.95	210	-0.2172	0.2117	0.0303
0.95	222	-0.2763	0.2496	0.0305