29 citations · 90 across the 10 of their papers we have counts for
10 papers · 1 filter
On the Origins of Varying Gauge Couplings
Carlos Henrique de Lima, David McKeen, David E. Morrissey +1
Variations in the gauge couplings of the Standard Model have been searched for experimentally and proposed as solutions to open questions in fundamental physics. Varying gauge coup…
Genesis of baryon and dark matter asymmetries through ultraviolet scattering freeze-in
Pouya Asadi, Marianne Moore, David E. Morrissey +1
We introduce a new mechanism for the simultaneous generation of baryon and dark matter asymmetries through ultraviolet-dominated freeze-in scatterings. The mechanism relies on heav…
Probing Lepton Number Violation at Same-Sign Lepton Colliders
Carlos Henrique de Lima, David McKeen, John N. Ng +2
Same-sign lepton colliders offer a promising environment to probe lepton number violation. We study processes that change lepton number by two units in the context of Majorana heav…
Dark Matter from Dark Glueball Dominance
David McKeen, Riku Mizuta, David E. Morrissey +1
New gauge forces can play an important role in the evolution of the early universe. In this work we investigate the cosmological implications of a pure Yang-Mills dark sector that…
Signatures of Bulk Neutrinos in the Early Universe
David McKeen, John Ng, Michael Shamma
Neutrino masses and quantum gravity are strong reasons to extend the standard model of particle physics. A large extra dimension can be motivated by quantum gravity and can explain…
New Ideas in Baryogenesis: A Snowmass White Paper
Gilly Elor, Julia Harz, Seyda Ipek +21
The Standard Model of Particle Physics cannot explain the observed baryon asymmetry of the Universe. This observation is a clear sign of new physics beyond the Standard Model. Ther…
Early-Universe Model Building
Pouya Asadi, Saurabh Bansal, Asher Berlin +37
Theoretical investigations into the evolution of the early universe are an essential part of particle physics that allow us to identify viable extensions to the Standard Model as w…
Dark Freeze-out Cogenesis
Xiaoyong Chu, Yanou Cui, Josef Pradler +1
We propose a new mechanism where a multi-component dark sector generates the observed dark matter abundance and baryon asymmetry and thus addresses the coincidence between the two.…
Unraveling the Dirac Neutrino with Cosmological and Terrestrial Detectors
Peter Adshead, Yanou Cui, Andrew J. Long +1
We point out a correlation between the effective number of relativistic degrees of species , the cosmologically measured , and the…
WIMP Cogenesis for Asymmetric Dark Matter and the Baryon Asymmetry
Yanou Cui, Michael Shamma
We propose a new mechanism where asymmetric dark matter (ADM) and the baryon asymmetry are both generated in the same decay chain of a metastable weakly interacting massive particl…