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Full-Text Articles in Physics

Computational Techniques For Scattering Amplitudes, Juliano A. Everett Dec 2018

Computational Techniques For Scattering Amplitudes, Juliano A. Everett

Publications and Research

Scattering amplitudes in quantum field theory can be described as the probability of a scattering process to happen within a high energy particle interaction, as well as a bridge between experimental measurements and the prediction of the theory.

In this research project, we explore the Standard Model of Particle Theory, it’s representation in terms of Feynman diagrams and the algebraic formulas associated with each combination.

Using the FeynArts program as a tool for generating Feynman diagrams, we evaluate the expressions of a set of physical processes, and explain why these techniques become necessary to achieve this goal.


Characterization Of Magnetic Thin Films Using The Magneto Optic Kerr Effect, Nicholas J. Savino Apr 2018

Characterization Of Magnetic Thin Films Using The Magneto Optic Kerr Effect, Nicholas J. Savino

Student Scholar Showcase

Understanding magnetic properties of materials allows for advances in applications such as data storage. The Magneto-Optic Kerr Effect (MOKE) displays the reflective response a magnetic material has to a magnetic field. When polarized light reflects off of a magnetic material, the polarization orientation can change. The application of an external magnetic field can affect how much this polarization changes in a non-linear manner. Hysteresis loops are created when examining the relationship between intensity of the reflected light to the applied magnetic field provide information about magnetic properties of that material, such as the coercive field and field retention. Preliminary measurements ...


Search For Novel Electronic Properties In Topological Materials, Benjamin Schrunk Jan 2018

Search For Novel Electronic Properties In Topological Materials, Benjamin Schrunk

Creative Components

ØAFM MFM project •Sample preparation •AFM/MFM overview •Results • ØARPES project •Dirac and Weyl Materials •ARPES overview •Results


Topology Of Earth's Magnetic Shield, David Alan Smith Dec 2017

Topology Of Earth's Magnetic Shield, David Alan Smith

David Smith

The open-closed boundary (OCB) defines the region where geomagnetic field lines transition from being closed to open. Closed field lines have both foot points at or near Earth in opposing hemispheres. Open field lines have one foot point at Earth; the other maps to the interplanetary magnetic field (IMF). Charged particles are able to follow these open field lines into Earth's upper atmosphere. The OCB also defines the polar cap boundary. Being able to identify and track the OCB allows study of several components of the geomagnetic system. Among them are the electrodynamics of the geomagnetic field and the ...