CLAS Physics Database

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Measurement E151M2470

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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 :	1235 GeV
ε :	0.9092
E_beam :	1.0539 GeV
ε_L:	0.1483

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	30	0.0448	0.2381	0.03
0.25	42	-0.0774	0.2014	0.03
0.25	54	0.169	0.1787	0.0302
0.35	30	0.1902	0.2205	0.0302
0.35	42	0.1129	0.1643	0.0301
0.35	54	0.0573	0.1902	0.03
0.45	42	0.0978	0.1595	0.0301
0.45	54	-0.0047	0.1664	0.03
0.45	66	0.0583	0.226	0.03
0.45	246	-0.1383	0.2632	0.0301
0.45	258	0.0681	0.2111	0.03
0.45	270	-0.0572	0.1698	0.03
0.45	282	-0.1836	0.1796	0.0302
0.55	234	0.3483	0.2402	0.0308
0.55	246	-0.24	0.1568	0.0304
0.55	258	-0.0996	0.1345	0.0301
0.55	270	-0.0414	0.1319	0.03
0.55	282	-0.1202	0.1567	0.0301
0.65	150	-0.0143	0.2246	0.03
0.65	162	-0.3615	0.2334	0.0309
0.65	174	-0.1872	0.2383	0.0302
0.65	186	-0.2729	0.2291	0.0305
0.65	198	-0.3688	0.2251	0.0309
0.65	234	-0.0872	0.176	0.0301
0.65	246	-0.0714	0.1274	0.03
0.65	258	-0.0497	0.1073	0.03
0.65	270	-0.0329	0.1081	0.03
0.65	282	0.2481	0.1603	0.0304
0.75	138	0.37	0.203	0.0309
0.75	150	0.1252	0.1846	0.0301
0.75	162	-0.0629	0.166	0.03
0.75	174	0.1992	0.143	0.0303
0.75	186	-0.1037	0.1474	0.0301
0.75	198	0.1262	0.1585	0.0301
0.75	210	-0.1431	0.1962	0.0301
0.75	222	-0.2743	0.1707	0.0305
0.75	234	-0.0534	0.1574	0.03
0.75	246	0.1869	0.1172	0.0302
0.75	258	0.001	0.1135	0.03
0.75	270	0.0251	0.1446	0.03
0.75	282	-0.3688	0.1829	0.0309
0.85	138	0.4101	0.222	0.0311
0.85	150	-0.0801	0.1686	0.03
0.85	162	0.1482	0.1702	0.0301
0.85	174	0.0276	0.1441	0.03
0.85	186	-0.248	0.1648	0.0304
0.85	198	-0.1434	0.1796	0.0301
0.85	210	0.0559	0.223	0.03
0.85	222	-0.0372	0.2239	0.03
0.85	234	-0.3035	0.161	0.0306
0.85	246	-0.1695	0.1632	0.0302
0.85	258	0.1417	0.1597	0.0301
0.85	270	0.1038	0.2351	0.0301