242 citations · 533 across the 16 of their papers we have counts for
7 papers · 1 filter
DM: a new mechanism for the baryon-dark matter coincidence
Wen Yin
For a relativistically decoupled thermal relic, the dark-matter energy-to-entropy ratio scales as . This is the familiar hot-dark-matter abundan…
Diversity of Galaxy Centers from Small-Scale Isocurvature
Jessica N. Lopez-Sanchez, Wen Yin
The observed diversity of galaxy centers motivates the possibility that the local dark matter composition may vary among galaxies. In conventional multicomponent dark matter scenar…
Axion Isocurvature Perturbations Survive the Scaling Evolution of Axion Domain Walls
Naoya Kitajima, Junseok Lee, Kai Murai +2
We revisit the evolution of axion domain walls seeded by inflationary fluctuations. In our previous work, we showed that such domain-wall networks retain superhorizon correlations…
Constant Scaling Fails for Global Monopole Networks
Wakutaka Nakano, Wen Yin
Global monopoles, which can also be understood as the zero-gauge-coupling limit of gauged monopoles, can form in the early Universe and evolve following a scaling network, as do ot…
PBHs and GWs from Scaling Monopoles
Daiki Aburatani, Wakutaka Nakano, Wen Yin
Monopoles with sufficiently weak gauge couplings, or from global symmetries, can form scaling networks in the early Universe whose average energy density tracks the cosmological ba…
Spontaneous Baryogenesis from Axions on Induced Electroweak Walls
Miguel Vanvlasselaer, Wen Yin
We propose a baryogenesis mechanism in which an electroweak phase boundary is induced by a wall-like configuration of a scalar field, such as a domain wall or a shock wave, coupled…
The COSMIC WISPers White Paper: The physics case for Weakly Interacting Slim Particles
Ariel Arza, Deniz Aybas, Shyam Balaji +124
Axions and other very weakly interacting slim particles (WISPs), with masses below 1 GeV, arise naturally in many extensions of the Standard Model of particle physics. In particula…