CLAS Physics Database

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Measurement E151M2458

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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 :	0.0844 GeV²
W :	1205 GeV
ε :	0.8747
E_beam :	1.0539 GeV
ε_L:	0.6043

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
0.45	282	-0.1239	0.2459	0.0301
0.55	270	0.4058	0.1572	0.0311
0.55	282	-0.0239	0.1861	0.03
0.55	294	-0.2014	0.2222	0.0303
0.65	258	0.2554	0.2239	0.0304
0.65	270	-0.293	0.1904	0.0306
0.65	282	-0.0889	0.1659	0.0301
0.75	258	0.4409	0.2027	0.0313
0.75	270	-0.1571	0.1896	0.0302
0.75	282	-0.0156	0.2221	0.03
0.85	138	-0.3801	0.1982	0.0309
0.85	150	0.0997	0.1942	0.0301
0.85	162	-0.4584	0.1852	0.0314
0.85	174	0.1658	0.2027	0.0302
0.85	186	-0.0639	0.2046	0.03
0.85	198	-0.5765	0.1829	0.0321
0.85	210	0.7134	0.1844	0.0332
0.85	222	-0.1032	0.2241	0.0301
0.85	234	-0.0632	0.2637	0.03
0.95	126	0.2295	0.2307	0.0303
0.95	138	0.1983	0.1971	0.0303
0.95	150	-0.046	0.219	0.03
0.95	162	-0.044	0.1905	0.03
0.95	174	0.0386	0.2294	0.03
0.95	186	-0.2889	0.1803	0.0306
0.95	198	0.0444	0.2141	0.03
0.95	210	0.0616	0.1953	0.03
0.95	222	-0.2953	0.2006	0.0306