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En studie på kvarlevorna av mörk materia med användandet av boltzmannekvationen
KTH, School of Engineering Sciences (SCI).
KTH, School of Engineering Sciences (SCI).
2019 (Swedish)Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesisAlternative title
A Study on the Relic Abundance of Dark Matter Using the Boltzmann Equation (English)
Abstract [sv]

I den här rapporten formulerar vi en förenklad version av Boltzmann ekvationen och använder den för att analysera beteendet hos den förväntade mängden mörk materia som finns idag beroende på massan och tvärsnittet för mörk materia partikeln. Grundläggande förkunskaper och en förklaring av modellen ges och antaganden som lett till modellen motiveras. För uträkningarna används både numeriska och approximativa analytiska metoder vars skillnader sedan analyseras.

Abstract [en]

In this report we formulate a simplified version of the Boltzmann equation and use it to study the behaviour of dark matter abundance today for different masses and thermally averaged cross-sections for the dark matter particle. Prerequisite knowledge is laid out together with a description of the model and assumptions made in simplifying it. Both analytical approximations and numerical methods are used in determining the final abundance and differences between the methods are analyzed.

Place, publisher, year, edition, pages
2019.
Series
TRITA-SCI-GRU ; 2019:206
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:kth:diva-255699OAI: oai:DiVA.org:kth-255699DiVA, id: diva2:1341326
Supervisors
Examiners
Available from: 2019-08-08 Created: 2019-08-08 Last updated: 2019-08-08Bibliographically approved

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CiteExportLink to record
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Citation style
  • apa
  • ieee
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  • de-DE
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  • en-US
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  • nn-NO
  • nn-NB
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More languages
Output format
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