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| Author(s): |
Washington Rodrigues de Carvalho Junior
Total Authors: 1
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| Document type: | Doctoral Thesis |
| Press: | São Paulo. |
| Institution: | Universidade de São Paulo (USP). Instituto de Física (IF/SBI) |
| Defense date: | 2008-08-06 |
| Examining board members: |
Ivone Freire da Mota e Albuquerque;
Carola Dobrigkeit Chinellato;
Philippe Gouffon;
Jorge Ernesto Horvath;
João Ramos Torres de Mello Neto
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| Advisor: | Ivone Freire da Mota e Albuquerque |
| Abstract | |
In this thesis we investigate a possible component of particles predicted by models beyond the standard model of particle physics, like the massive gluino LSP, in the ultra high energy cosmic rays (UHECR). Our objective is to determine the experimental signals on fluorescence telescopes due to exotic massive and neutral hadrons, generically called UHECRons. To simulate showers initiated by this class of particle, we altered the shower simulation package Aires and the hadronic model Sibyll. These showers were used as input in our simulations of fluorescence telescopes, thus obtaining the distribuitons of the observables for these exotic showers. By comparing the characteristics of showers initiated by uhecrons and protons, we developed methods to distinguish the signals between these two particles. These methods can be used in an initial analysis in order to look for signals of exotic particles in the real data of UHECR observatories. (AU) | |