Early universe cosmology as a probe of fundamental physics
Başlık çevirisi mevcut değil.
- Tez No: 611703
- Danışmanlar: PROF. DR. DANIŞMAN YOK
- Tez Türü: Doktora
- Konular: Fizik ve Fizik Mühendisliği, Physics and Physics Engineering
- Anahtar Kelimeler: Belirtilmemiş.
- Yıl: 2017
- Dil: İngilizce
- Üniversite: Syracuse Unıversıty
- Enstitü: Yurtdışı Enstitü
- Ana Bilim Dalı: Belirtilmemiş.
- Bilim Dalı: Belirtilmemiş.
- Sayfa Sayısı: Belirtilmemiş.
Özet
Cosmology, together with cosmological and astrophysical observations of ever increasing precision, represents a unique opportunity to study physics at energies far beyond the reach of terrestial laboratories. In particular, observations of the cosmic microwave background radiation supports the idea for an early phase of accelerated expansion called in ation. While the simplest in ationary models provide a consistent theoretical framework in explaining observational data, we are yet to understand the microscopic details of the in ationary dynamics, the process of how the in ation ends and how the evolution in the post-in ationary era proceeds. In this dissertation, we will explore observational consequences of well-motivated scenarios in the early universe both from a top-down and bottom-up perspective. In particular, motivated by the null results of low energy searches of supersymmetry at Large Hadron Collider, we will rst focus on the so-called Split Supersymmetry scenarios including a stable dark matter candidate and study observational signatures/constraints of (on) these models. Next, we investigate the phenomenology of particle production events during in ation focusing on cases that are well motivated both by UV physics and bottom-up EFT considerations. Considering the cosmological correlators in the presence of particle production, we explore the viability of scenarios in light of recent data on the Cosmic Microwave Background radiation. Finally, we take some small steps towards understanding the dynamics at the end of in ation from an E ective Field Theory perspective and discuss a possible observational e ects that might arise in this formalism.
Özet (Çeviri)
Özet çevirisi mevcut değil.
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