5 papers
Expanding Ejecta Method: II. Framework for Cosmological Distance Measurements via Intensity Interferometry
David Dunsky, I-Kai Chen, Junwu Huang +2
We explore the potential of the expanding ejecta method (EEM) as a cosmological probe, leveraging its ability to measure angular diameter distances to supernovae (SNe) with intensi…
Expanding Ejecta Method: I. Mapping Supernova Morphology with Intensity Interferometry
I-Kai Chen, David Dunsky, Ken Van Tilburg +2
We explore the potential of optical intensity interferometry to extract angularly resolved information from supernova explosions, introducing the "expanding ejecta method" (EEM) as…
Observing Dark Matter Decays to Gravitons via Graviton-Photon Conversion
David I. Dunsky, Gordan Krnjaic, Elena Pinetti
Since dark matter is only known to have gravitational interactions, it may plausibly decay to gravitons on cosmological timescales. Although such a scenario can be easily realized,…
Leptogenesis in Parity Solutions to the Strong CP Problem and Standard Model Parameters
Juanca Carrasco-Martinez, David I. Dunsky, Lawrence J. Hall +1
We study the simplest theories with exact spacetime parity that solve the strong CP problem and successfully generate the cosmological baryon asymmetry via decays of right-handed n…
A Heavy QCD Axion and the Mirror World
David I. Dunsky, Lawrence J. Hall, Keisuke Harigaya
We study the mirror world with dark matter arising from the thermal freeze-out of the lightest, stable mirror particle -- the mirror electron. The dark matter abundance is achieved…