CLAS Physics Database

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Measurement E151M2919

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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 :	0.0593 GeV²
W :	1235 GeV
ε :	0.9696
E_beam :	1.9889 GeV
ε_L:	0.4081

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
0.35	66	-0.2547	0.2441	0.0304
0.35	78	0.5871	0.2127	0.0322
0.45	66	0.0345	0.2385	0.03
0.45	78	0.4254	0.1689	0.0312
0.55	78	0.0905	0.1734	0.0301
0.55	90	0.0804	0.1719	0.03
0.55	270	-0.1234	0.2558	0.0301
0.65	90	-0.104	0.1919	0.0301
0.65	258	0.2016	0.1684	0.0303
0.65	270	0.4337	0.1666	0.0312
0.75	102	-0.0067	0.2928	0.03
0.75	114	0.1742	0.2194	0.0302
0.75	126	0.3152	0.2045	0.0307
0.75	234	0.6254	0.1953	0.0325
0.75	246	-0.1695	0.2114	0.0302
0.75	258	0.1344	0.161	0.0301
0.75	270	-0.1196	0.2178	0.0301
0.85	102	0.4536	0.2433	0.0313
0.85	114	-0.1068	0.1986	0.0301
0.85	126	0.0921	0.167	0.0301
0.85	138	-0.187	0.1795	0.0302
0.85	150	0.1396	0.1666	0.0301
0.85	162	0.2097	0.2246	0.0303
0.85	174	0.1808	0.2236	0.0302
0.85	186	0.5098	0.1883	0.0317
0.85	198	-0.0933	0.2787	0.0301
0.85	210	0.0289	0.2698	0.03
0.85	222	0.2705	0.2432	0.0305
0.85	234	0.3613	0.2121	0.0309
0.85	246	-0.0715	0.2044	0.03
0.85	258	-0.2949	0.225	0.0306
0.95	114	0.1267	0.2664	0.0301
0.95	126	0.1829	0.2132	0.0302
0.95	138	-0.1252	0.2107	0.0301
0.95	150	0.2846	0.1779	0.0305
0.95	162	-0.0637	0.2149	0.03
0.95	174	-0.2941	0.2138	0.0306
0.95	186	0.2744	0.2332	0.0305
0.95	198	-0.43	0.2437	0.0312
0.95	210	0.5709	0.1959	0.0321