CLAS Physics Database

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Measurement E151M2471

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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 :	0.0245 GeV²
W :	1235 GeV
ε :	0.9058
E_beam :	1.0539 GeV
ε_L:	0.1741

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
0.15	42	0.4542	0.1923	0.0313
0.15	54	-0.1555	0.2576	0.0302
0.25	30	0.296	0.2036	0.0306
0.25	42	-0.4959	0.1631	0.0316
0.25	54	0.2937	0.1787	0.0306
0.35	30	-0.1985	0.2367	0.0303
0.35	42	-0.0877	0.1735	0.0301
0.35	54	-0.0722	0.1518	0.03
0.45	42	0.05	0.1664	0.03
0.45	54	0.0141	0.1914	0.03
0.45	66	0.2333	0.233	0.0304
0.45	270	0.0033	0.1977	0.03
0.45	282	0.1119	0.1864	0.0301
0.55	246	-0.1093	0.1744	0.0301
0.55	258	0.0848	0.1266	0.03
0.55	270	-0.0308	0.138	0.03
0.55	282	0.0301	0.1569	0.03
0.65	234	-0.4441	0.1654	0.0313
0.65	246	0.0782	0.1476	0.03
0.65	258	-0.0226	0.1157	0.03
0.65	270	-0.0171	0.1125	0.03
0.65	282	0.1533	0.1474	0.0302
0.75	126	-0.3014	0.2131	0.0306
0.75	138	0.1663	0.1957	0.0302
0.75	150	0.3674	0.1554	0.0309
0.75	162	-0.0638	0.1601	0.03
0.75	174	-0.0727	0.1499	0.03
0.75	186	0.0903	0.1924	0.0301
0.75	198	-0.2989	0.1678	0.0306
0.75	210	0.1012	0.1767	0.0301
0.75	222	0.329	0.1903	0.0307
0.75	234	0.1651	0.1583	0.0302
0.75	246	-0.0034	0.1333	0.03
0.75	258	-0.0524	0.1144	0.03
0.75	270	0.0246	0.1128	0.03
0.75	282	-0.1582	0.197	0.0302
0.85	138	0.1393	0.2095	0.0301
0.85	150	-0.0073	0.1611	0.03
0.85	162	0.3453	0.1439	0.0308
0.85	174	-0.0576	0.1488	0.03
0.85	186	0.0552	0.1502	0.03
0.85	198	-0.1422	0.1782	0.0301
0.85	210	-0.2134	0.1976	0.0303
0.85	222	-0.0144	0.1937	0.03
0.85	234	0.1475	0.1621	0.0301
0.85	246	0.2164	0.2259	0.0303
0.85	258	-0.0656	0.1539	0.03
0.85	270	0.1793	0.2063	0.0302