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First observation of the Greisen-Zatsepin-Kuzmin cutoff
Descriptive
TypeOfResource
Text
TitleInfo
(ID = T-1)
Title
First observation of the Greisen-Zatsepin-Kuzmin cutoff
Identifier
ETD_1691
Identifier
(type = hdl)
http://hdl.rutgers.edu/1782.2/rucore10001600001.ETD.000051355
Language
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eng
Genre
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theses
Subject
(ID = SBJ-1);
(authority = RUETD)
Topic
Physics and Astronomy
Subject
(ID = SBJ-1);
(authority = ETD-LCSH)
Topic
Cosmic rays
Abstract
The High Resolution Fly's Eye Detector has observed the Greisen-Zatsepin-Kuzmin cutoff at the level of 5sigma. The flux of Ultra High Energy Cosmic Rays from 10^17.2eV to 10^20.2eV has been measured. From the features seen in the spectrum it is found to
be consistent with extra-galactic Cosmic Rays of a light composition (mostly protons). A detector simulation is used to calculate the aperture of the experiment. Data-Monte Carlo comparisons are shown as
a check of the accuracy of the simulation. Systematic effects of the detector and analysis are described and the effect on energy scale are presented.
We have carried out a study of the cosmic ray shower development. The results are compared to Monte Carlo simulations and theoretical predictions. This is the first time data has been analyzed in this way at such high energies. Events are found to agree with the Gaisser-Hillas profile which is used as input to the Monte Carlo and to calculate the primary particle energy.
Finally the Telescope Array (TA) experiment is described and its proposed Low Energy Extension (TALE). The effect of using a faster FADC system on the geometrical reconstruction is investigated. The results from this study will be used in the design of TALE electronics.
be consistent with extra-galactic Cosmic Rays of a light composition (mostly protons). A detector simulation is used to calculate the aperture of the experiment. Data-Monte Carlo comparisons are shown as
a check of the accuracy of the simulation. Systematic effects of the detector and analysis are described and the effect on energy scale are presented.
We have carried out a study of the cosmic ray shower development. The results are compared to Monte Carlo simulations and theoretical predictions. This is the first time data has been analyzed in this way at such high energies. Events are found to agree with the Gaisser-Hillas profile which is used as input to the Monte Carlo and to calculate the primary particle energy.
Finally the Telescope Array (TA) experiment is described and its proposed Low Energy Extension (TALE). The effect of using a faster FADC system on the geometrical reconstruction is investigated. The results from this study will be used in the design of TALE electronics.
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electronic resource
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xvi, 134 p. : ill.
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Note
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Ph.D.
Note
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Includes bibliographical references (p. 128-133)
Note
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by Gareth Hughes
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Hughes
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Gareth
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1980
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author
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Gareth Hughes
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Thomson
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Gordon
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chair
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Advisory Committee
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Gordon B Thomson
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Bergman
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Douglas
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internal member
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Advisory Committee
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Douglas R Bergman
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Thomas
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Scott
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internal member
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Scott Thomas
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Sengupta
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Anirvan
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internal member
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Advisory Committee
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Anirvan M Sengupta
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Takai
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Helio
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outside member
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Advisory Committee
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Helio Takai
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Rutgers University
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degree grantor
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Graduate School - New Brunswick
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school
OriginInfo
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2009
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2009-05
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xx
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Title
Rutgers University Electronic Theses and Dissertations
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ETD
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Graduate School - New Brunswick Electronic Theses and Dissertations
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rucore19991600001
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NjNbRU
Identifier
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doi:10.7282/T3SX6DG2
Genre
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ETD doctoral
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Rights
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The author owns the copyright to this work.
Copyright
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Copyright protected
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Open
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Non-exclusive ETD license
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Author Agreement License
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I hereby grant to the Rutgers University Libraries and to my school the non-exclusive right to archive, reproduce and distribute my thesis or dissertation, in whole or in part, and/or my abstract, in whole or in part, in and from an electronic format, subject to the release date subsequently stipulated in this submittal form and approved by my school. I represent and stipulate that the thesis or dissertation and its abstract are my original work, that they do not infringe or violate any rights of others, and that I make these grants as the sole owner of the rights to my thesis or dissertation and its abstract. I represent that I have obtained written permissions, when necessary, from the owner(s) of each third party copyrighted matter to be included in my thesis or dissertation and will supply copies of such upon request by my school. I acknowledge that RU ETD and my school will not distribute my thesis or dissertation or its abstract if, in their reasonable judgment, they believe all such rights have not been secured. I acknowledge that I retain ownership rights to the copyright of my work. I also retain the right to use all or part of this thesis or dissertation in future works, such as articles or books.
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