3 papers
hep-ph2025
An EFT approach to the study of multi-phase criticality scenarios
Kristjan Kannike, Luca Marzola, Kristjan Müürsepp
Multi-phase critical scenarios explain the observed Higgs boson mass scale by the almost simultaneous occurrence of two smoothly connected phases of the theory, which differ by the…
hep-ph2025
Accelerated cosmic expansion, mass creation, and the QCD axion
Kristjan Müürsepp, Enrico Nardi, Clemente Smarra
We propose a mechanism in which the current acceleration of cosmic expansion is driven by continuous creation of energy density for a certain field . We accordingly mo…
astro-ph.CO2025
Fuzzy dark matter fails to explain the dark matter cores
MarÃa Benito, Gert Hütsi, Kristjan Müürsepp +4
Ultrafaint dwarf galaxies (UFDs) are ideal for studying dark matter (DM) due to minimal baryonic effects. UFD observations suggest cored DM profiles. We find that the core radius -…