CLAS Physics Database

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Measurement E151M2576

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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 :	0.0205 GeV²
W :	1385 GeV
ε :	0.7513
E_beam :	1.0539 GeV
ε_L:	0.0484

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
0.25	42	-0.1499	0.1779	0.0301
0.25	54	-0.3146	0.2205	0.0307
0.35	30	-0.3597	0.2205	0.0309
0.35	42	0.0059	0.146	0.03
0.35	54	0.1427	0.155	0.0301
0.45	18	-0.2802	0.2351	0.0305
0.45	30	-0.0364	0.2289	0.03
0.45	42	0.4278	0.1405	0.0312
0.45	54	0.0959	0.1521	0.0301
0.45	66	-0.111	0.2309	0.0301
0.45	234	-0.1209	0.2233	0.0301
0.45	246	0.1842	0.1994	0.0302
0.55	30	-0.3138	0.1655	0.0306
0.55	42	-0.0125	0.1419	0.03
0.55	54	-0.1801	0.142	0.0302
0.55	66	0.1376	0.2667	0.0301
0.55	150	0.0609	0.2519	0.03
0.55	162	0.1085	0.238	0.0301
0.55	174	-0.391	0.2416	0.031
0.55	222	-0.0521	0.1816	0.03
0.55	234	0.1068	0.1582	0.0301
0.55	246	-0.1727	0.1506	0.0302
0.55	258	0.1016	0.1974	0.0301
0.65	42	0.1824	0.2287	0.0302
0.65	54	-0.0118	0.2344	0.03
0.65	138	-0.367	0.1882	0.0309
0.65	150	0.1742	0.1905	0.0302
0.65	162	-0.0209	0.2178	0.03
0.65	174	0.0812	0.2377	0.03
0.65	210	-0.2724	0.2322	0.0305
0.65	222	0.2361	0.1718	0.0304
0.65	234	-0.1847	0.1252	0.0302
0.65	246	-0.0266	0.1408	0.03
0.65	258	-0.3855	0.1591	0.031
0.65	270	-0.3517	0.2247	0.0308
0.75	138	0.5505	0.1746	0.032
0.75	150	0.2791	0.1663	0.0305
0.75	162	0.1094	0.1894	0.0301
0.75	174	0.1917	0.222	0.0302
0.75	210	0.0961	0.2308	0.0301
0.75	222	-0.0765	0.1897	0.03
0.75	234	0.2659	0.1497	0.0305
0.75	246	-0.0194	0.147	0.03
0.75	258	0.0539	0.154	0.03
0.75	270	0.1577	0.2038	0.0302
0.85	150	0.044	0.2613	0.03
0.85	162	0.0451	0.2547	0.03
0.85	222	-0.0793	0.1737	0.03
0.85	234	-0.042	0.1523	0.03
0.85	246	-0.2556	0.1416	0.0304
0.85	258	-0.1059	0.1565	0.0301
0.85	270	-0.1158	0.2026	0.0301
0.95	234	-0.0263	0.2603	0.03