CLAS Physics Database

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Measurement E151M2594

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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 :	0.0143 GeV²
W :	1415 GeV
ε :	0.7112
E_beam :	1.0539 GeV
ε_L:	0.0278

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	0.0286	0.2407	0.03
0.25	54	-0.1103	0.2461	0.0301
0.35	30	0.3976	0.2235	0.031
0.35	42	0.3329	0.1754	0.0307
0.35	54	0.1166	0.165	0.0301
0.35	66	-0.0869	0.2157	0.0301
0.45	18	0.0663	0.2524	0.03
0.45	30	0.1919	0.1941	0.0302
0.45	42	-0.2071	0.1569	0.0303
0.45	54	0.2904	0.1323	0.0306
0.45	66	-0.1795	0.215	0.0302
0.45	210	-0.1916	0.2221	0.0302
0.45	222	0.0877	0.2385	0.0301
0.45	234	-0.2265	0.184	0.0303
0.45	246	0.0376	0.24	0.03
0.55	30	-0.1104	0.177	0.0301
0.55	42	0.0731	0.161	0.03
0.55	54	0.1823	0.1356	0.0302
0.55	138	0.0674	0.1997	0.03
0.55	150	0.0312	0.1966	0.03
0.55	162	-0.0069	0.2104	0.03
0.55	174	0.119	0.2207	0.0301
0.55	222	0.0083	0.1762	0.03
0.55	234	-0.0298	0.1651	0.03
0.55	246	0.0916	0.1909	0.0301
0.55	258	-0.032	0.2622	0.03
0.65	54	0.2358	0.198	0.0304
0.65	138	-0.0506	0.2278	0.03
0.65	150	-0.057	0.2088	0.03
0.65	162	0.0343	0.2205	0.03
0.65	174	0.0025	0.2015	0.03
0.65	210	-0.295	0.2456	0.0306
0.65	222	-0.1154	0.1725	0.0301
0.65	234	0.1266	0.1341	0.0301
0.65	246	0.2185	0.1294	0.0303
0.65	258	-0.0369	0.1861	0.03
0.75	150	-0.0792	0.2295	0.03
0.75	162	-0.0569	0.205	0.03
0.75	210	0.0058	0.2578	0.03
0.75	222	-0.1151	0.1775	0.0301
0.75	234	-0.0798	0.1683	0.03
0.75	246	-0.1295	0.1492	0.0301
0.75	258	0.0576	0.1893	0.03
0.85	222	-0.1977	0.208	0.0303
0.85	234	0.0954	0.1637	0.0301
0.85	246	-0.0811	0.1606	0.03
0.85	258	0.0091	0.2072	0.03
0.95	234	0.3905	0.235	0.031