CLAS Physics Database

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Measurement E151M2951

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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 :	1295 GeV
ε :	0.9476
E_beam :	1.9889 GeV
ε_L:	0.4181

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	306	0.4571	0.2036	0.0314
0.15	66	-0.0537	0.2752	0.03
0.15	306	0.312	0.2101	0.0306
0.15	318	0.2563	0.2732	0.0304
0.25	66	0.0715	0.1933	0.03
0.25	78	-0.1057	0.249	0.0301
0.25	294	-0.172	0.2282	0.0302
0.25	306	-0.6105	0.2043	0.0324
0.35	66	-0.0202	0.1663	0.03
0.35	78	0.4228	0.1787	0.0312
0.35	282	0.3885	0.2536	0.031
0.35	294	0.1454	0.2129	0.0301
0.35	306	-0.5366	0.2076	0.0319
0.45	66	0.0674	0.1524	0.03
0.45	78	-0.1873	0.1458	0.0302
0.45	90	-0.0684	0.2656	0.03
0.45	270	-0.0827	0.2555	0.03
0.45	282	-0.3692	0.2378	0.0309
0.45	294	0.3383	0.2405	0.0308
0.55	66	0.3563	0.1762	0.0308
0.55	78	0.481	0.1478	0.0315
0.55	90	0.0148	0.2306	0.03
0.55	258	-0.2353	0.252	0.0304
0.55	270	-0.1791	0.1883	0.0302
0.55	282	0.111	0.1977	0.0301
0.55	294	-0.1896	0.2588	0.0302
0.65	78	0.0778	0.2368	0.03
0.65	90	0.3128	0.2584	0.0306
0.65	102	0.0925	0.2666	0.0301
0.65	114	-0.1873	0.2651	0.0302
0.65	246	0.1136	0.2406	0.0301
0.65	258	-0.2113	0.1549	0.0303
0.65	270	0.1166	0.1628	0.0301
0.65	282	-0.0923	0.1858	0.0301
0.75	90	-0.4037	0.1993	0.0311
0.75	102	0.0188	0.1594	0.03
0.75	114	0.1238	0.1656	0.0301
0.75	126	0.0389	0.192	0.03
0.75	138	-0.4992	0.2294	0.0316
0.75	234	-0.0526	0.2089	0.03
0.75	246	-0.016	0.1608	0.03
0.75	258	0.0619	0.1688	0.03
0.75	270	-0.0406	0.1403	0.03
0.75	282	-0.3581	0.1587	0.0308
0.85	90	0.1219	0.1743	0.0301
0.85	102	0.1105	0.1374	0.0301
0.85	114	0.0396	0.1291	0.03
0.85	126	0.0422	0.1443	0.03
0.85	138	0.3628	0.1493	0.0309
0.85	150	-0.0771	0.1887	0.03
0.85	162	0.1947	0.2371	0.0303
0.85	234	-0.003	0.1673	0.03
0.85	246	-0.0004	0.1574	0.03
0.85	258	0.0047	0.1458	0.03
0.85	270	0.0692	0.1475	0.03
0.85	282	-0.1375	0.1676	0.0301
0.95	102	0.0598	0.2244	0.03
0.95	114	-0.1151	0.1753	0.0301
0.95	126	-0.0806	0.1741	0.03
0.95	138	0.3419	0.1988	0.0308
0.95	150	0.1481	0.1884	0.0301
0.95	162	-0.0015	0.2046	0.03
0.95	174	-0.4975	0.2081	0.0316
0.95	210	-0.5498	0.2315	0.032
0.95	222	0.44	0.1953	0.0313
0.95	234	0.3923	0.2265	0.031
0.95	246	-0.0489	0.2128	0.03
0.95	258	0.0143	0.2045	0.03
0.95	270	0.0308	0.1953	0.03