CLAS Physics Database

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Measurement E151M2613

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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 :	1445 GeV
ε :	0.6575
E_beam :	1.0539 GeV
ε_L:	0.0223

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	0.0993	0.2262	0.0301
0.25	54	0.2091	0.2282	0.0303
0.35	30	0.4803	0.222	0.0315
0.35	42	0.1895	0.1831	0.0302
0.35	54	-0.0266	0.1477	0.03
0.35	66	0.0782	0.2444	0.03
0.45	30	0.1684	0.2493	0.0302
0.45	42	-0.2273	0.16	0.0303
0.45	54	-0.0935	0.158	0.0301
0.45	66	0.2017	0.1836	0.0303
0.45	222	-0.1694	0.2374	0.0302
0.45	234	0.169	0.2111	0.0302
0.45	246	0.2974	0.239	0.0306
0.55	30	0.4426	0.2071	0.0313
0.55	42	0.0808	0.1996	0.03
0.55	54	-0.0802	0.1502	0.03
0.55	66	0.1493	0.235	0.0301
0.55	150	-0.3455	0.2272	0.0308
0.55	174	-0.1063	0.2552	0.0301
0.55	222	0.0862	0.2137	0.03
0.55	234	-0.5037	0.1629	0.0316
0.55	246	-0.239	0.1626	0.0304
0.55	258	0.0728	0.2196	0.03
0.65	54	-0.0789	0.2691	0.03
0.65	150	-0.0784	0.192	0.03
0.65	162	0.0283	0.2104	0.03
0.65	174	0.0255	0.2256	0.03
0.65	210	-0.0703	0.2549	0.03
0.65	222	0.0013	0.177	0.03
0.65	234	-0.135	0.1751	0.0301
0.65	246	-0.1223	0.1687	0.0301
0.65	258	0.2376	0.2198	0.0304
0.75	30	-0.2083	0.2318	0.0303
0.75	138	0.3136	0.209	0.0306
0.75	150	0.1598	0.2459	0.0302
0.75	162	-0.3072	0.2437	0.0306
0.75	222	-0.0131	0.1835	0.03
0.75	234	-0.1716	0.1689	0.0302
0.75	246	0.089	0.1689	0.0301
0.75	258	0.0937	0.2027	0.0301
0.85	210	-0.1173	0.2332	0.0301
0.85	222	0.0957	0.1856	0.0301
0.85	234	-0.1525	0.1563	0.0302
0.85	246	-0.1085	0.1604	0.0301
0.85	258	0.2003	0.2147	0.0303
0.95	246	-0.1792	0.2567	0.0302