Cosmological Probes of Light Relics

  • Benjamin Wallisch

Part of the Springer Theses book series (Springer Theses)

Table of contents

  1. Front Matter
    Pages i-xix
  2. Benjamin Wallisch
    Pages 1-7
  3. Benjamin Wallisch
    Pages 9-47
  4. Benjamin Wallisch
    Pages 49-80
  5. Benjamin Wallisch
    Pages 81-99
  6. Benjamin Wallisch
    Pages 101-133
  7. Benjamin Wallisch
    Pages 135-160
  8. Benjamin Wallisch
    Pages 161-178
  9. Benjamin Wallisch
    Pages 179-181
  10. Back Matter
    Pages 183-220

About this book


The wealth of recent cosmic microwave background and large-scale structure data has transformed the field of cosmology. These observations have not only become precise enough to answer questions about the universe on the largest scales, but also to address puzzles in the microscopic description of Nature. This thesis investigates new ways of probing the early universe, the properties of neutrinos and the possible existence of other light particles. In particular, based on detailed theoretical insights and novel analyses, new evidence for the cosmic neutrino background is found in the distribution of galaxies and in cosmic microwave background data. This tests the Standard Model of particle physics and the universe back to a time when it was about one second old. Furthermore, it is demonstrated that future observations will be capable of probing physics beyond the Standard Model since they can achieve a particular target which would either allow the detection of any light particles that have ever been in thermal equilibrium or imply strong bounds on their properties.


Cosmic Neutrinos/Cosmic Neutrino Background Light Thermal Relics Early Universe Cosmology Cosmological Probes of Particle Physics Cosmic Microwave Background (CMB) Large-scale Structure (of the Universe) (LSS) Neutrino-induced Phase Shift Axions/Axion-like Particles Baryon Acoustic Oscillations (BAO) Spectrum of Baryon Acoustic Oscillations (BAO spectrum)

Authors and affiliations

  • Benjamin Wallisch
    • 1
  1. 1.School of Natural SciencesInstitute for Advanced StudyPrincetonUSA

Bibliographic information