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- Description:
- This thesis explores how beyond-the-Standard-Model physics interactions could lead to the detection of neutrino decay with lifetimes that are orders of magnitude smaller than a second. I mainly focused on right-handed neutrino fields, new heavy states, and non-zero daughter neutrino masses, assuming the neutrinos are Dirac fermions. An extensive description...
- Keyword:
- Visible, Invisible, Neutrino, and Decay
- Subject:
- Theoretical physics
- Creator:
- Weill, Jean
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 08/23/2023
- Date Created:
- 2023-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- http://dissertations.umi.com/northwestern:16720 and etdadmin_upload_1012443
-
- Description:
- We broaden the scope of existing dark matter searches at the Large Hadron Collider (LHC) by considering phenomena such as bound state formation and by utilizing simple extensions of well-studied models in the literature. First, we consider the Mono-X studies at the LHC, where the production of dark matter occurs...
- Subject:
- Theoretical physics and Particle physics
- Creator:
- Krovi, Venkat Sai Anirudh
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 04/15/2021
- Date Created:
- 2021-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_797580 and http://dissertations.umi.com/northwestern:15481
-
- Description:
- The recently increasing precision in experimental measurements of observables in collider physics has demanded for a matching precision in the theoretical expectations for such observables. In Quantum ChromoDynamics, the fundamental underlying theory for collider physics, theoretical predictions are expressed under the form of perturbative series, where the expansion parameter is...
- Subject:
- Theoretical physics
- Creator:
- Isgro, Andrea
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/01/2021
- Date Created:
- 2020-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- http://dissertations.umi.com/northwestern:15151 and etdadmin_upload_746893
-
- Description:
- Liquid 3He is the paradigm system for studying exotic quantum mechanical phenomena observed in nature. The normal state of 3He is a strongly-correlated Fermi liquid with strong ferromagnetic spin fluctuations. However, as we cool 3He down to T = 0K, we find something fascinating and unexpected. This exotic fluid remains...
- Keyword:
- Superfluidity, Helium 3, Quantized Vortex, Superconductivity, Quantum Mechanics, and Phase Transitions
- Subject:
- Theoretical physics, Condensed matter physics, and
- Creator:
- Regan, Robert Charles
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/01/2021
- Date Created:
- 2020-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- http://dissertations.umi.com/northwestern:15410 and etdadmin_upload_780916
-
- Description:
- As much as half of the gas mass in our Galaxy's dark matter halo may reside not in the galaxy itself, but in the surrounding volume, the circumgalactic medium (CGM). The vast gas content of the CGM, loosely defined as the volume immediately outside the galaxy but inside the dark...
- Keyword:
- galaxies, circumgalactic medium, simulations, hydrodynamics, mock observations, and spectra
- Subject:
- Astronomy, Astrophysics, and Theoretical physics
- Creator:
- Hafen, Zachary Harris
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 01/21/2021
- Date Created:
- 2020-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_740684 and http://dissertations.umi.com/northwestern:15072
-
- Description:
- In this thesis I focus on two topics: planet-disk interaction and solar convection. These two seemingly separate topics are connected via a similar separation of timescales. Planets excite spiral waves in their disks on fast timescales compared to the time for the disk to viscously adjust to the angular momentum...
- Keyword:
- convection, planet-disk interaction, accretion disks, protoplanetary disks, solar physics, and exoplanets
- Subject:
- Astrophysics, Theoretical physics, and Computational physics
- Creator:
- Dempsey, Adam
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 04/28/2020
- Date Created:
- 2019-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_710433 and http://dissertations.umi.com/northwestern:14956
-
- Description:
- The Brink-Schwarz superparticle is a one-dimensional analogue of the Green-Schwarz superstring. In this thesis, we use the Batalin-Vilkovisky formalism to study the superparticle. After proving a vanishing result for its Batalin-Vilkovisky cohomology, we explain the sense in which the superparticle exhibits general covariance in the world-line. Using techniques from rational...
- Keyword:
- covariance, superstring, gauge theory, quantization, and supersymmetry
- Subject:
- Mathematics and Theoretical physics
- Creator:
- Pohorence, Sean Weinz
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/12/2020
- Date Created:
- 2019-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_662424 and http://dissertations.umi.com/northwestern:14639