Non-decoupling of heavy scalars in cosmology

Leiden Repository

Non-decoupling of heavy scalars in cosmology

Title: Non-decoupling of heavy scalars in cosmology
Author: Hardeman, Sjoerd Reimer
Publisher: Leiden Institute of Physics (LION), Instituut-Lorentz, Faculty of Science, Leiden University
Issue Date: 2012-06-08
Keywords: Effective field theory
Inflation
Integrable hierarchies
String theory and cosmology
Supergravity models
Abstract: The theory describing physics at the highest energy scales likely contains extra dimensions, whose internal degrees of freedom result in many massive field and particles. At accelerator experiments these fields and particles generally decouple from the low energy physics. However, in cosmology gravity couples everything, thereby invalidating the decoupling assumption. In this thesis we have shown that massive particles and field that do not decouple during cosmological inflation will generate corrections, which lead to possibly observable features in the Cosmic Microwave Background. Furthermore, in specific setups where the massive particles and fields do decouple their stability can still be affected by the low energy physics energy scale
Description: Promotor: A. Achúcarro, Co-promotor: K.E. Schalm
With summary in Dutch
Faculty: Faculteit der Wiskunde en Natuurwetenschappen
Citation: Hardeman, S.R., 2012, Doctoral thesis, Leiden University
Series/Report no.: Casimir PhD Series;2011-3
ISBN: 9789085930921
Sponsor: NWO Veni and NWO VICI
Handle: http://hdl.handle.net/1887/19062
 

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application/pdf Chapter 1 Introduction 673.4Kb View/Open
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application/pdf Bibliography 188.8Kb View/Open
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application/pdf Acknowledgement ... lications_Curriculum Vitae 128.4Kb View/Open
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