CLAS Physics Database

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Measurement E151M2450

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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 :	0.0205 GeV²
W :	1205 GeV
ε :	0.9279
E_beam :	1.0539 GeV
ε_L:	0.1911

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
0.55	246	0.3425	0.2488	0.0308
0.55	258	-0.0229	0.2615	0.03
0.55	270	-0.1891	0.1793	0.0302
0.55	282	-0.0776	0.2139	0.03
0.65	246	-0.5279	0.1677	0.0318
0.65	258	-0.1989	0.1653	0.0303
0.65	270	-0.0485	0.1769	0.03
0.65	282	0.3274	0.2099	0.0307
0.75	162	0.0248	0.2316	0.03
0.75	174	0.5026	0.1877	0.0316
0.75	186	0.1498	0.183	0.0301
0.75	198	0.1598	0.199	0.0302
0.75	210	-0.0976	0.2053	0.0301
0.75	222	0.0322	0.2243	0.03
0.75	234	-0.1877	0.2547	0.0302
0.75	246	0.1249	0.2002	0.0301
0.75	258	0.0199	0.2038	0.03
0.85	150	-0.0648	0.2259	0.03
0.85	162	-0.097	0.2123	0.0301
0.85	174	-0.0243	0.1719	0.03
0.85	186	0.2837	0.2007	0.0305
0.85	198	0.0645	0.1935	0.03
0.85	210	-0.0056	0.1956	0.03
0.85	222	-0.2797	0.241	0.0305