New simulations show that cross-correlating gravitational wave background anisotropies with galaxy distributions can enable discovery at angular scales of 4-6 degrees with next-generation observatories.
Phase transitions in the early universe
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Radiative barriers in SUSY flat directions enable supercooled PTs yielding Ω_GW h² up to ~3e-10 for M_λ̃/v_X in 0.05-0.23, with the hidden sector also reproducing Ω_CDM h²=0.12 for m_q ~30-800 keV.
The thesis solves coupled Boltzmann equations for freeze-in production and cannibal interactions in scalar theories with Z2/Z3 symmetries, mediator-coupled dark matter, cannibal production during reheating, and a hidden U(1) sector that can undergo an inverse first-order phase transition.
TransitionListener v2.0 supplies an end-to-end pipeline from scalar potential to gravitational wave spectra with improved handling of transition dynamics and bubble separation.
The paper reviews primordial black hole formation during the cosmic QCD phase transition in a microscopical model and explores how beyond-Standard-Model physics affects the equation of state and PBH probability distributions as dark matter candidates.
citing papers explorer
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Prospects for multi-messenger discovery of the gravitational-wave background anisotropies via cross-correlation with galaxies
New simulations show that cross-correlating gravitational wave background anisotropies with galaxy distributions can enable discovery at angular scales of 4-6 degrees with next-generation observatories.
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Natural Supercooling and Reheating along Supersymmetric Flat Directions and Observable Gravitational Waves at the Einstein Telescope and the Cosmic Explorer
Radiative barriers in SUSY flat directions enable supercooled PTs yielding Ω_GW h² up to ~3e-10 for M_λ̃/v_X in 0.05-0.23, with the hidden sector also reproducing Ω_CDM h²=0.12 for m_q ~30-800 keV.
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Dynamics of Self-Interacting Dark Sectors
The thesis solves coupled Boltzmann equations for freeze-in production and cannibal interactions in scalar theories with Z2/Z3 symmetries, mediator-coupled dark matter, cannibal production during reheating, and a hidden U(1) sector that can undergo an inverse first-order phase transition.
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TransitionListener v2.0 -- Robust gravitational wave predictions for cosmological phase transitions
TransitionListener v2.0 supplies an end-to-end pipeline from scalar potential to gravitational wave spectra with improved handling of transition dynamics and bubble separation.
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Primordial Black Holes Formation Beyond the Standard Cosmic QCD Transition
The paper reviews primordial black hole formation during the cosmic QCD phase transition in a microscopical model and explores how beyond-Standard-Model physics affects the equation of state and PBH probability distributions as dark matter candidates.