For distinguished contributions to psychophysiology: William G. Iacono

Miller, Gregory A.

doi:10.1111/j.1469-8986.2010.00975.x

Cited by 3 publications

(2 citation statements)

References 305 publications

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“…[47]; see Ref. [48] for a detailed review), we now attempt to translate our extracted nucleon form factors into a description of the spatial structure of the nucleon. Although the form factors are typically thought of as being the Fourier transforms of the nucleon wavefunction, there is a complication due to the imparted momentum at the vertex.…”

Section: Transverse Densitiesmentioning

confidence: 99%

Lattice Calculations of Nucleon Electromagnetic Form Factors at Large Momentum Transfer

Lin¹,

Cohen²,

Edwards³

et al. 2010

Preprint

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In this work, we report a novel technique in lattice QCD for studying the high momentumtransfer region of nucleon form factors. These calculations could give important theoretical input to experiments, such as those of JLab's 12-GeV program and studies of nucleon deformation. There is an extensive history of form-factor calculations on the lattice, primarily with ground states for both the initial and final state. However, determining form factors at large momentum transfer (Q 2 ) has been difficult due to large statistical and systematic errors in this regime. We study the nucleon form factors using three pion masses with both quenched and 2+1-flavor anisotropic lattice configurations with Q 2 as large as 6 GeV 2 . These form factors are further processed to obtain transverse charge and magnetization densities across 2-dimensional impact-parameter space. Our approach can be applied to isotropic lattices and lattices with smaller lattice spacing to calculate even larger-Q 2 form factors.

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Section: Transverse Densitiesmentioning

confidence: 99%

Lattice Calculations of Nucleon Electromagnetic Form Factors at Large Momentum Transfer

Lin¹,

Cohen²,

Edwards³

et al. 2010

Preprint

View full text Add to dashboard Cite

show abstract

“…Instead, we use the model-independent formulation of Ref. [19,20] in terms of densities in a two-dimensional plane transverse to an infinite-momentum boost. The transverse charge density (ρ) is defined as the Fourier transform of the form factor in such a plane: where bold vectors b and q lie in the transverse plane.…”

Section: Nucleon Dirac and Pauli Form Factorsmentioning

confidence: 99%

Nucleon and Pion Form Factors from $N_f=2+1$ Anisotropic Lattices

Lin¹,

Cohen²

2011

Preprint

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We report a recent lattice-QCD calculation of nucleon and pion electromagnetic form factors and nucleon axial form factors, with special emphasis on large Q 2 . Conventional lattice form-factor calculations can only reach about 2.5 GeV 2 , but in this work the transfer momentum is pushed as large as 6 GeV 2 . Here, we demonstrate the results on 2+1-flavor anisotropic clover lattices for the nucleon and pion, comparing with low-Q 2 quantities, such as Dirac and Pauli radii, anomalous magnetic moments, g A and M A . Our approach can be applied to isotropic lattices and lattices with smaller lattice spacing to achieve even larger-Q 2 form factors. The form factors are processed to obtain transverse charge and magnetization densities across 2-dimensional impact-parameter space. These measurements could give important theoretical input to experiments, such as those of JLab's 12-GeV program, and provide insight into hadronic structure.

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Brain fingerprinting field study on major, terrorist crimes supports the brain fingerprinting scientific standards hypothesis: classification concealed information test with P300 and P300-MERMER succeeds; comparison CIT fails

Farwell¹,

Richardson²

2022

Cogn Neurodyn

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For distinguished contributions to psychophysiology: William G. Iacono

Cited by 3 publications

References 305 publications

Lattice Calculations of Nucleon Electromagnetic Form Factors at Large Momentum Transfer

Lattice Calculations of Nucleon Electromagnetic Form Factors at Large Momentum Transfer

Nucleon and Pion Form Factors from $N_f=2+1$ Anisotropic Lattices

Brain fingerprinting field study on major, terrorist crimes supports the brain fingerprinting scientific standards hypothesis: classification concealed information test with P300 and P300-MERMER succeeds; comparison CIT fails

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