Physics Commons^™

Deepcip: Probing Compensated Isocurvature Perturbations In The Cmb Using Deep Neural Nets, Matiwos A. Mebratu , '21

Senior Theses, Projects, and Awards

No abstract provided.

Measurement Of Angular Correlation Of Two Protons In Quasielastic Neutrino-Nucleus Cross-Section, Matthieu Chalifour , '20

Senior Theses, Projects, and Awards

We search in the MINERvA scintillator detector for multiple proton emission in quasielastic like charged current neutrino scattering. The number of such observable events in MINERvA is predicted to be far greater than currently available samples. We measure the total number of such events, and study the distribution of laboratory frame angles between the multiple protons and the muon, which is sensitive to the production mechanism for such events. We find significant disagreement of signal events between data and Monte-Carlo simulation.

A Theory For Allosteric Temperature-Sensitive Transcription Factors, Zechen Zhang , '18

Senior Theses, Projects, and Awards

We propose a theory for temperature-sensitive transcription factors under the allostery framework. We show that the allostery theory due to excess vibrational entropy and conformational energy difference can produce a thermal switch behavior that is experimentally observed in the literature. The theory paves the way for a complete model of a tunable thermal bioswitch.

Compression And Acceleration Of Taylor State Plasmas On Ssx, Jaron Shrock , '18

Senior Theses, Projects, and Awards

We aim to describe the fundamental physics and results of compression and acceleration experiments performed on the Swarthmore Spheromak Experiment (SSX). The fundamental research objective is to maximize the energy and density of a Taylor state (a relaxed, twisted, and force-free equilibrium which will be discussed in detail in chapter 2) plasmas with the potential goal of forming a target for magneto-inertial fusion (MIF). This includes characterizing the equation of state for compression of Taylor state plasma structures and evaluating the effectiveness of acceleration modules acting on these states.

We present a comprehensive review of both the theory and experimental …

Structured Randomness: Jamming Of Soft Disks Within Lattices Of Pinned Particles, Prairie Wentworth-Nice , '18

Senior Theses, Projects, and Awards

No abstract provided.

Developing Pulse Shape Discrimination Techniques To Identify Alpha Particles, Neutrons, And Gamma Rays, Emily Hudson , '17

Senior Theses, Projects, and Awards

The purpose of this project was to develop pulse shape discrimination (PSD) methods that would be applied to background measurements for the Mitchell Institute Neutrino Experiment at Reactor, or MivER, collaboration. The purpose of the MivER experiment is to detect coherent elastic neutrino-nucleus scattering (CEvNS). Pulse shape discrimination is an analysis method used to distinguish between different particles by the shapes of their waveforms. I wrote my analysis code in Python while my research partner wrote her code in C++. We tried a variety of PSD methods. In one method, we curve fit the …

Physical Interpretations Of Permutation Entropy Scaling Analyses In Turbulent Fluids, Ariel Rock , '16

Senior Theses, Projects, and Awards

We show that the methods permutation entropy and complexity analysis can be extended to a more robust tool by treating embedding delay as a freely varying parameter. We show that one can extract meaningful information about the nature turbulent systems when this extended analysis is applied to data taken from such systems. Furthermore, we find that this information agrees with information determined via conventional methodology, as well as providing new understanding about the systems analyzed.