Event Title
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Document Type
Open Access
Department
Physics and Astronomy
Start Date
21-5-2021 2:45 PM
Description
Analysis of Possible Hybrid Meson Decay - Jasper Bergh
This research looked at data from the GlueX experiment at the Thomas Jefferson National Accelerator Facility to search for evidence of the π1(1600) particle, an exotic hybrid meson, decaying to an eta' and π0. We specifically looked into decays of the eta' to an eta, π+, and π-, with the eta decaying to 3 πo's. We successfully reconstructed an eta from the 3 πo's, and an eta' from the eta, π+, and π-. However, we did not observe the π1(1600), but, a 6:1 ratio of signal to background in the eta' mass. With more statistics this would be a viable channel to search for hybrid mesons.
PIXE Analysis of Soil Samples Near the George Washington Bridge - Helen Black
Heavy metal pollution is being investigated near bridges in New York City as part of an ongoing environmental pollution project at Union College. Soils collected from around the George Washington Bridge, that crosses the Hudson River, between Washington Heights in Manhattan and northern New Jersey, were investigated for the presence of heavy metal pollution using Proton Induced X-Ray Emission (PIXE) Spectroscopy. 2.2 MeV proton beams were generated in the Union College Ion-Beam Analysis Laboratory and used to bombard 21, 1-g soil pellet targets. The collected soils were sifted and pressed into targets with 10 pellets prepared from the NY side and 11 pellets prepared from the NJ side. X-ray energy spectra were generated and the results of the PIXE analysis show considerable amounts of lead present in the soil at the base of the George Washington Bridge. The lead concentration tends to decrease as the distance from the bridge increases, and this trend is present on both sides of the bridge. The highest lead concentrations were determined to be directly under the span of the bridge with 1509 +/-253 ppm seen on the New York side of the bridge and 478 +/-108 ppm on the New Jersey side of the bridge.
Electron Positron Annihilation Lifetime Spectroscopy - Jacob Feinstein
This poster presents an introduction to module theory,the purpose of which is to bring an advanced undergraduate student of mathematics to a level of understanding of modules and of tensor products.The thesis on which this poster is based was inspired by various resources written on each topic of interest and was written with the purpose of exploring the tensor product and some of its implications through the lens of introductory module theory. The goal of this poster isto provide a concise and clear introduction to modules and their properties, tensor products, and the dual space of a vector space.
Dimensional Reduction on a Scalar Field - Daniel Resnick
The introduction of a compact extra dimension into a scalar field theory introduces an infinite tower of increasing (3+1) dimensional masses, called a Kaluza-Klein tower. This process, known as "dimensional reduction,'' depends on the curvature of space-time. We present a very brief overview of the framework necessary to perform a dimensional reduction and an analysis of a trivially curved (4+1) dimensional space-time, followed by a brief discussion on more general curvature and its effects on a Kaluza-Klein tower.
Physics Senior Thesis Panel
Analysis of Possible Hybrid Meson Decay - Jasper Bergh
This research looked at data from the GlueX experiment at the Thomas Jefferson National Accelerator Facility to search for evidence of the π1(1600) particle, an exotic hybrid meson, decaying to an eta' and π0. We specifically looked into decays of the eta' to an eta, π+, and π-, with the eta decaying to 3 πo's. We successfully reconstructed an eta from the 3 πo's, and an eta' from the eta, π+, and π-. However, we did not observe the π1(1600), but, a 6:1 ratio of signal to background in the eta' mass. With more statistics this would be a viable channel to search for hybrid mesons.
PIXE Analysis of Soil Samples Near the George Washington Bridge - Helen Black
Heavy metal pollution is being investigated near bridges in New York City as part of an ongoing environmental pollution project at Union College. Soils collected from around the George Washington Bridge, that crosses the Hudson River, between Washington Heights in Manhattan and northern New Jersey, were investigated for the presence of heavy metal pollution using Proton Induced X-Ray Emission (PIXE) Spectroscopy. 2.2 MeV proton beams were generated in the Union College Ion-Beam Analysis Laboratory and used to bombard 21, 1-g soil pellet targets. The collected soils were sifted and pressed into targets with 10 pellets prepared from the NY side and 11 pellets prepared from the NJ side. X-ray energy spectra were generated and the results of the PIXE analysis show considerable amounts of lead present in the soil at the base of the George Washington Bridge. The lead concentration tends to decrease as the distance from the bridge increases, and this trend is present on both sides of the bridge. The highest lead concentrations were determined to be directly under the span of the bridge with 1509 +/-253 ppm seen on the New York side of the bridge and 478 +/-108 ppm on the New Jersey side of the bridge.
Electron Positron Annihilation Lifetime Spectroscopy - Jacob Feinstein
This poster presents an introduction to module theory,the purpose of which is to bring an advanced undergraduate student of mathematics to a level of understanding of modules and of tensor products.The thesis on which this poster is based was inspired by various resources written on each topic of interest and was written with the purpose of exploring the tensor product and some of its implications through the lens of introductory module theory. The goal of this poster isto provide a concise and clear introduction to modules and their properties, tensor products, and the dual space of a vector space.
Dimensional Reduction on a Scalar Field - Daniel Resnick
The introduction of a compact extra dimension into a scalar field theory introduces an infinite tower of increasing (3+1) dimensional masses, called a Kaluza-Klein tower. This process, known as "dimensional reduction,'' depends on the curvature of space-time. We present a very brief overview of the framework necessary to perform a dimensional reduction and an analysis of a trivially curved (4+1) dimensional space-time, followed by a brief discussion on more general curvature and its effects on a Kaluza-Klein tower.