CLAS Physics Database

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Measurement E151M3015

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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 :	0.1715 GeV²
W :	1415 GeV
ε :	0.8872
E_beam :	1.9889 GeV
ε_L:	0.3203

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	54	-0.1726	0.2486	0.0302
0.35	66	0.1773	0.227	0.0302
0.35	78	-0.4772	0.2013	0.0315
0.35	282	0.1942	0.2327	0.0303
0.35	294	0.058	0.2231	0.03
0.45	78	0.3905	0.251	0.031
0.45	282	-0.0106	0.2786	0.03
0.45	294	-0.1179	0.2503	0.0301
0.55	66	0.1302	0.2728	0.0301
0.55	102	0.1332	0.2544	0.0301
0.55	114	0.0588	0.2792	0.03
0.55	270	-0.3698	0.234	0.0309
0.55	282	-0.2217	0.2652	0.0303
0.65	66	0.4138	0.2462	0.0311
0.65	102	-0.0718	0.1979	0.03
0.65	114	-0.0502	0.2127	0.03
0.65	126	0.0204	0.2698	0.03
0.65	246	-0.2251	0.1915	0.0303
0.65	258	-0.1099	0.227	0.0301
0.65	270	-0.2499	0.2519	0.0304
0.75	90	0.1034	0.2104	0.0301
0.75	102	-0.1221	0.2102	0.0301
0.75	114	0.0172	0.2119	0.03
0.75	126	-0.0118	0.204	0.03
0.75	138	-0.3916	0.1992	0.031
0.75	222	-0.5204	0.2527	0.0318
0.75	234	-0.0358	0.224	0.03
0.75	246	0.2343	0.2145	0.0304
0.75	258	-0.002	0.1968	0.03
0.75	270	-0.1414	0.2145	0.0301
0.85	78	0.0542	0.2502	0.03
0.85	90	-0.5863	0.2089	0.0322
0.85	102	-0.0898	0.1679	0.0301
0.85	114	0.1221	0.2128	0.0301
0.85	126	-0.1421	0.1898	0.0301
0.85	138	0.2629	0.2375	0.0305
0.85	150	-0.69	0.1975	0.033
0.85	198	0.2032	0.2765	0.0303
0.85	210	0.0547	0.2224	0.03
0.85	222	-0.1195	0.2089	0.0301
0.85	234	-0.0089	0.1926	0.03
0.85	246	0.105	0.2053	0.0301
0.85	258	-0.1368	0.1795	0.0301
0.85	270	-0.0944	0.2018	0.0301
0.85	282	-0.2614	0.1839	0.0305
0.85	294	0.0691	0.2587	0.03
0.95	78	0.4721	0.1705	0.0315
0.95	114	-0.5059	0.281	0.0317
0.95	234	-0.1606	0.2211	0.0302
0.95	246	0.1007	0.2206	0.0301
0.95	258	0.1655	0.1966	0.0302
0.95	270	0.0789	0.1917	0.03
0.95	282	0.1122	0.1838	0.0301