CLAS Physics Database

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Measurement E151M2479

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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 :	0.101 GeV²
W :	1235 GeV
ε :	0.8374
E_beam :	1.0539 GeV
ε_L:	0.5353

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	0.2007	0.2477	0.0303
0.05	42	0.0778	0.2209	0.03
0.05	54	0.0236	0.2494	0.03
0.15	42	-0.125	0.2054	0.0301
0.15	54	0.3763	0.2327	0.0309
0.35	282	0.1432	0.1848	0.0301
0.45	270	-0.0165	0.1782	0.03
0.45	282	-0.0108	0.1737	0.03
0.45	294	-0.055	0.1858	0.03
0.55	258	0.2865	0.2257	0.0305
0.55	270	-0.0459	0.1577	0.03
0.55	282	0.0229	0.1479	0.03
0.55	294	-0.1779	0.1963	0.0302
0.65	258	-0.1546	0.1729	0.0302
0.65	270	-0.1363	0.1399	0.0301
0.65	282	0.0786	0.1553	0.03
0.65	294	-0.2399	0.1693	0.0304
0.75	246	0.3417	0.1899	0.0308
0.75	258	-0.4119	0.1566	0.0311
0.75	270	0.3411	0.1412	0.0308
0.75	282	-0.061	0.1617	0.03
0.75	294	0.2251	0.1933	0.0303
0.85	114	0.5043	0.205	0.0316
0.85	126	-0.2824	0.2072	0.0305
0.85	138	0.1745	0.1705	0.0302
0.85	150	0.0382	0.1834	0.03
0.85	162	-0.0763	0.1863	0.03
0.85	174	0.1339	0.1848	0.0301
0.85	186	-0.0189	0.2001	0.03
0.85	198	-0.1643	0.193	0.0302
0.85	210	-0.2244	0.1963	0.0303
0.85	222	-0.1171	0.1989	0.0301
0.85	246	-0.4631	0.2076	0.0314
0.85	258	0.1785	0.2027	0.0302
0.85	270	-0.2561	0.18	0.0304
0.85	282	-0.2475	0.1991	0.0304
0.95	78	0.0328	0.2548	0.03
0.95	126	0.3096	0.1931	0.0306
0.95	138	0.1821	0.1902	0.0302
0.95	150	-0.1259	0.1756	0.0301
0.95	162	0.0528	0.1742	0.03
0.95	174	-0.1897	0.1741	0.0302
0.95	186	-0.1064	0.2108	0.0301
0.95	198	-0.0655	0.1989	0.03
0.95	210	-0.1083	0.2169	0.0301
0.95	222	0.0689	0.2381	0.03
0.95	234	0.6371	0.1915	0.0326