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Phenomenological Model Building in Particle Cosmology
Phenomenological Model Building in Particle Cosmology
상세정보
- 자료유형
- 학위논문 서양
- 최종처리일시
- 20250211151339
- ISBN
- 9798382777757
- DDC
- 530.1
- 서명/저자
- Phenomenological Model Building in Particle Cosmology
- 발행사항
- [Sl] : The University of Chicago, 2024
- 발행사항
- Ann Arbor : ProQuest Dissertations & Theses, 2024
- 형태사항
- 418 p
- 주기사항
- Source: Dissertations Abstracts International, Volume: 85-12, Section: B.
- 주기사항
- Advisor: Carena, Marcela.
- 학위논문주기
- Thesis (Ph.D.)--The University of Chicago, 2024.
- 초록/해제
- 요약The Standard Model of particle physics and the ΛCDM cosmological paradigm have been largely successful in describing the current state of the universe and how this came to be. And yet, we know both descriptions to be incomplete, as there exist a great number of open questions left unaddressed by both. This thesis presents several model building efforts towards resolving these shortcomings in our current picture of particle cosmology. After reviewing the current state of affairs and the puzzles that persist, we turn to the events of the early universe. Focusing on two exceptionally promising probes - primordial black holes and their accompanying gravitational waves - we show how constraints on both can lead to inferences about inflation, the subsequent expansion history, and more. Next, we turn to the cosmological phase transitions which may have occurred during this period, with particular emphasis on strongly first-order phase transitions accompanied by gravitational wave signatures. We address a major source of uncertainty in predictions of such phase transitions and present novel theoretical bounds on a model which is in principle capable of making the electroweak phase transition strongly first-order. Finally, we examine three mysteries of late-time cosmology, informed by present day observations and data. First, in the context of dark matter model building, we present a new scheme of asymmetric reheating which can reconcile dark sectors with light degrees of freedom with precision observables. Next, in light of recent observations of supermassive black holes at surprisingly high redshifts, we explore the possibility of supermassive black holes of a primordial origin. Finally, we present a novel mechanism for generating the primordial magnetic fields required to seed the cosmological magnetic fields observed today.
- 일반주제명
- Theoretical physics
- 일반주제명
- Astrophysics
- 일반주제명
- Physics
- 일반주제명
- Particle physics
- 키워드
- Cosmology
- 키워드
- Black holes
- 기타저자
- The University of Chicago Physics
- 기본자료저록
- Dissertations Abstracts International. 85-12B.
- 전자적 위치 및 접속
- 로그인 후 원문을 볼 수 있습니다.
MARC
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■00520250211151339
■006m o d
■007cr#unu||||||||
■020 ▼a9798382777757
■035 ▼a(MiAaPQ)AAI31242160
■040 ▼aMiAaPQ▼cMiAaPQ
■0820 ▼a530.1
■1001 ▼aIreland, Aurora Nicole.▼0(orcid)0000-0001-5393-0971
■24510▼aPhenomenological Model Building in Particle Cosmology
■260 ▼a[Sl]▼bThe University of Chicago▼c2024
■260 1▼aAnn Arbor▼bProQuest Dissertations & Theses▼c2024
■300 ▼a418 p
■500 ▼aSource: Dissertations Abstracts International, Volume: 85-12, Section: B.
■500 ▼aAdvisor: Carena, Marcela.
■5021 ▼aThesis (Ph.D.)--The University of Chicago, 2024.
■520 ▼aThe Standard Model of particle physics and the ΛCDM cosmological paradigm have been largely successful in describing the current state of the universe and how this came to be. And yet, we know both descriptions to be incomplete, as there exist a great number of open questions left unaddressed by both. This thesis presents several model building efforts towards resolving these shortcomings in our current picture of particle cosmology. After reviewing the current state of affairs and the puzzles that persist, we turn to the events of the early universe. Focusing on two exceptionally promising probes - primordial black holes and their accompanying gravitational waves - we show how constraints on both can lead to inferences about inflation, the subsequent expansion history, and more. Next, we turn to the cosmological phase transitions which may have occurred during this period, with particular emphasis on strongly first-order phase transitions accompanied by gravitational wave signatures. We address a major source of uncertainty in predictions of such phase transitions and present novel theoretical bounds on a model which is in principle capable of making the electroweak phase transition strongly first-order. Finally, we examine three mysteries of late-time cosmology, informed by present day observations and data. First, in the context of dark matter model building, we present a new scheme of asymmetric reheating which can reconcile dark sectors with light degrees of freedom with precision observables. Next, in light of recent observations of supermassive black holes at surprisingly high redshifts, we explore the possibility of supermassive black holes of a primordial origin. Finally, we present a novel mechanism for generating the primordial magnetic fields required to seed the cosmological magnetic fields observed today.
■590 ▼aSchool code: 0330.
■650 4▼aTheoretical physics
■650 4▼aAstrophysics
■650 4▼aPhysics
■650 4▼aParticle physics
■653 ▼aCosmology
■653 ▼aGravitational waves
■653 ▼aPhase transitions
■653 ▼aBlack holes
■690 ▼a0753
■690 ▼a0596
■690 ▼a0798
■690 ▼a0605
■71020▼aThe University of Chicago▼bPhysics.
■7730 ▼tDissertations Abstracts International▼g85-12B.
■790 ▼a0330
■791 ▼aPh.D.
■792 ▼a2024
■793 ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17161323▼nKERIS▼z이 자료의 원문은 한국교육학술정보원에서 제공합니다.
