CLAS Physics Database

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Measurement E151M2514

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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 :	0.0291 GeV²
W :	1295 GeV
ε :	0.8517
E_beam :	1.0539 GeV
ε_L:	0.1282

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	-0.171	0.249	0.0302
0.25	42	0.4994	0.2129	0.0316
0.25	54	0.1835	0.222	0.0302
0.35	30	0.054	0.2562	0.03
0.35	42	0.7609	0.176	0.0336
0.35	54	-0.3966	0.2223	0.031
0.45	30	0.1784	0.1922	0.0302
0.45	42	-0.0786	0.1508	0.03
0.45	54	-0.1211	0.2333	0.0301
0.45	258	-0.0044	0.2356	0.03
0.45	270	0.0144	0.2333	0.03
0.55	42	-0.4637	0.199	0.0314
0.55	54	-0.0504	0.2553	0.03
0.55	234	-0.0798	0.1988	0.03
0.55	246	-0.0023	0.1683	0.03
0.55	258	0.1457	0.1506	0.0301
0.55	270	0.0298	0.1584	0.03
0.65	138	0.1855	0.2269	0.0302
0.65	150	0.0453	0.2344	0.03
0.65	162	-0.7426	0.1696	0.0335
0.65	174	-0.4442	0.2198	0.0313
0.65	222	0.3398	0.2039	0.0308
0.65	234	0.1586	0.1746	0.0302
0.65	246	-0.1682	0.1272	0.0302
0.65	258	0.0169	0.1254	0.03
0.65	270	0.2697	0.1494	0.0305
0.65	282	0.1109	0.1856	0.0301
0.75	126	0.0972	0.2617	0.0301
0.75	138	-0.0184	0.1818	0.03
0.75	150	-0.1908	0.1664	0.0302
0.75	162	0.3078	0.14	0.0306
0.75	174	-0.0433	0.1577	0.03
0.75	186	-0.0875	0.2147	0.0301
0.75	198	-0.0546	0.231	0.03
0.75	210	-0.1593	0.239	0.0302
0.75	222	0.3821	0.1846	0.031
0.75	234	0.0048	0.1451	0.03
0.75	246	-0.0397	0.1362	0.03
0.75	258	-0.1032	0.1383	0.0301
0.75	270	0.1305	0.1377	0.0301
0.75	282	0.1849	0.2152	0.0302
0.85	126	0.3639	0.2395	0.0309
0.85	138	0.0636	0.1946	0.03
0.85	150	-0.0059	0.193	0.03
0.85	162	0.2785	0.2114	0.0305
0.85	174	0.27	0.2386	0.0305
0.85	186	-0.0617	0.2061	0.03
0.85	198	0.2072	0.2208	0.0303
0.85	222	0.0566	0.2155	0.03
0.85	234	-0.2408	0.1697	0.0304
0.85	246	0.0421	0.1223	0.03
0.85	258	-0.061	0.1313	0.03
0.85	270	-0.2017	0.1683	0.0303
0.85	282	-0.1689	0.2569	0.0302
0.95	138	0.2836	0.2432	0.0305