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Astrophysical neutrinos at the low and high energy frontiers


Abstract For this project, the diffuse supernova neutrino background (DSNB) has been calculated based on the recent direct supernova rate measurements and neutrino spectrum from SN1987A. The estimated diffuse electron antineutrino flux is ∼ 0.10 – 0.59 /cm2/s at 99% confidence level, which is 5 times lower than the Super-Kamiokande 2012 upper limit of 3.0 /cm2/s, above energy threshold of 17.3 MeV. With a Megaton scale water detector, 40 events could be detected above the threshold per year. In addition, the detectability of neutrino bursts from direct black hole forming collapses (failed supernovae) at Megaton detectors is calculated. These neutrino bursts are energetic and with short time duration, ∼ 1s. They could be ide... (more)
Created Date 2013
Contributor Yang, Lili (Author) / Lunardini, Cecilia (Advisor) / Alarcon, Ricardo (Committee member) / Shovkovy, Igor (Committee member) / Timmes, Francis (Committee member) / Vachaspati, Tanmay (Committee member) / Arizona State University (Publisher)
Subject Physics / Astrophysics / Diffuse flux / Failed supernova / Neutrino / Supernova / Ultra-high energy
Type Doctoral Dissertation
Extent 129 pages
Language English
Copyright
Reuse Permissions All Rights Reserved
Note Ph.D. Physics 2013
Collaborating Institutions Graduate College / ASU Library
Additional Formats MODS / OAI Dublin Core / RIS


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Description Dissertation/Thesis