Iason Baldes, Maximilian Dichtl, Yann Gouttenoire, Filippo Sala
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引用次数: 0
Abstract
We initiate the study of “bubbletrons,” by which we mean ultrahigh-energy collisions of the particle shells that generically form at the walls of relativistic bubbles in cosmological first-order phase transitions (PT). As an application, we calculate the maximal dark matter mass MDM that bubbletrons can produce in a U(1) gauge PT, finding MDM∼105/1011/1015GeV for PT scales vϕ∼10−2/103/109GeV. Bubbletrons realize a novel link between ultrahigh-energy phenomena and gravitational waves sourced at the PT, from nanohertz to megahertz frequencies. Published by the American Physical Society2025
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