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Master's Dissertation
DOI
https://doi.org/10.11606/D.76.2022.tde-06042022-094316
Document
Author
Full name
Alvaro Busquet de Sant'Anna Junior
E-mail
Institute/School/College
Knowledge Area
Date of Defense
Published
São Carlos, 2022
Supervisor
Committee
Souza Filho, Luiz Vitor de (President)
Chinellato, Carola Dobrigkeit
Oliveira, Marcelo Augusto Leigui de
Title in Portuguese
Análise de chuveiros atmosféricos extensos: física de partículas com aceleradores extraterrestres
Keywords in Portuguese
Chuveiros atmosféricos
Método de Monte Carlo
Processo de ramificação de dois tipos
Raios cósmicos
Simulações computacionais
Abstract in Portuguese
A astrofísica de partículas é um campo de pesquisa dedicada à relação entre objetos astrofísicos e partículas elementares. Um tema que tem sido estudado nas últimas décadas aborda os raios cósmicos e suas características. Uma maneira de obter maiores informações sobre eles é analisando os chuveiros atmosféricos que decorrem diretamente dos raios cósmicos. Essa análise requer comparações com modelos computacionais, os quais, comumente, mesclam os métodos de Monte Carlo e equações de cascata. Por sua vez, tais equações advêm de diferentes aplicações dos modelos teóricos; entre eles, há um pouco comum denominado processo de ramificação de dois tipos, o qual considera efeitos de interações inelásticas. A fim de entender como se comportam as diferentes aplicações das equações de cascata contendo um modelo com ramificação de dois tipos, realizamos algumas simulações e as comparamos com resultados preexistentes.
Title in English
Extensive atmospheric showers analysis: particle physics with extraterrestrial accelerators
Keywords in English
Branching process with two types
Computational simulations
Cosmic rays
Extensive air showers
Monte Carlo method
Abstract in English
Astroparticle physics is a research field dedicated to studying the relationship between astrophysical objects and elementary particles. A topic that has been studied in the last decades covers cosmic rays and their characteristics. One way to obtain further information about them is by analysing the extensive air showers which are directly produced by cosmic rays. These analyses require comparisons with computational models, which commonly merge the Monte Carlo and cascade equations methods. These equations comes from different applications of the theoretical models; among them, one not so common, called branching process of two types, considers the effects of inelastic interactions. In order to understand how cascade equations with a branching process of two types behave, we made some computational simulations and compared the results with previous ones.
 
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Publishing Date
2022-04-06
 
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