CLAS Physics Database

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Measurement E151M2554

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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 :	0.0171 GeV²
W :	1355 GeV
ε :	0.7967
E_beam :	1.0539 GeV
ε_L:	0.0509

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	0.4029	0.1848	0.0311
0.25	54	0.0282	0.2442	0.03
0.35	30	-0.2131	0.2082	0.0303
0.35	42	0.0743	0.1617	0.03
0.35	54	0.3103	0.1679	0.0306
0.35	66	0.0907	0.2526	0.0301
0.45	18	0.1478	0.2401	0.0301
0.45	30	-0.0156	0.1783	0.03
0.45	42	0.0115	0.1518	0.03
0.45	54	0.2983	0.1642	0.0306
0.45	66	-0.3443	0.191	0.0308
0.45	234	-0.1553	0.2395	0.0302
0.45	246	0.0985	0.2081	0.0301
0.55	18	0.1096	0.2051	0.0301
0.55	30	0.1001	0.1584	0.0301
0.55	42	-0.1264	0.1266	0.0301
0.55	54	-0.228	0.1456	0.0303
0.55	66	-0.2381	0.2622	0.0304
0.55	150	0.2539	0.2577	0.0304
0.55	162	0.2921	0.2584	0.0306
0.55	222	-0.095	0.2026	0.0301
0.55	234	0.0669	0.1425	0.03
0.55	246	0.017	0.1534	0.03
0.55	258	0.1701	0.1722	0.0302
0.55	270	0.2434	0.2102	0.0304
0.65	42	-0.4205	0.2406	0.0312
0.65	54	0.4457	0.1843	0.0313
0.65	138	0.1388	0.2247	0.0301
0.65	150	0.0199	0.1796	0.03
0.65	162	-0.0854	0.1907	0.03
0.65	174	-0.3016	0.2045	0.0306
0.65	210	0.1288	0.2076	0.0301
0.65	222	-0.0094	0.1574	0.03
0.65	234	-0.0459	0.1454	0.03
0.65	246	0.0612	0.1218	0.03
0.65	258	-0.1181	0.1403	0.0301
0.65	270	0.2425	0.197	0.0304
0.75	138	0.0914	0.1878	0.0301
0.75	150	-0.1081	0.1714	0.0301
0.75	162	-0.2129	0.1788	0.0303
0.75	174	-0.3888	0.2394	0.031
0.75	186	-0.0866	0.2246	0.03
0.75	210	0.1937	0.2104	0.0302
0.75	222	-0.1543	0.175	0.0302
0.75	234	-0.1295	0.1457	0.0301
0.75	246	0.2098	0.1339	0.0303
0.75	258	-0.201	0.1459	0.0303
0.75	270	0.0651	0.2168	0.03
0.85	126	-0.1116	0.2508	0.0301
0.85	138	0.4476	0.2102	0.0313
0.85	150	0.1103	0.2586	0.0301
0.85	174	0.0251	0.2547	0.03
0.85	222	-0.186	0.1551	0.0302
0.85	234	-0.0133	0.1424	0.03
0.85	246	-0.1917	0.1399	0.0302
0.85	258	-0.0643	0.1585	0.03
0.85	270	-0.17	0.2051	0.0302