162 citations · 2.1k across the 70 of their papers we have counts for
66 papers · 1 filter
A PQ-Symmetric High-Scale SUSY Interpretation of the LZ High-Energy Recoil
Wen Yin
The 248-keV nuclear-recoil-like event reported by LZ can be interpreted as near-threshold upscattering of 1.08-TeV thermal Higgsino dark matter. A neutral-Higgsino splitting of ord…
Why 4D? Spontaneous Dimensional Selection from Gauge Criticality
Wen Yin
Noting that the Yang--Mills coupling is relevant below four dimensions, marginal in four dimensions, and irrelevant above four dimensions, I propose that this criticality can lead…
QCD Axion Hybrid Inflation
Yuma Narita, Fuminobu Takahashi, Wen Yin
When the inflaton is coupled to the gluon Chern-Simons term for successful reheating, mixing between the inflaton and the QCD axion is generally expected given the solution of the…
Role of QCD in moduli stabilization during inflation and axion dark matter
Ryuichiro Kitano, Motoo Suzuki, Wen Yin
Ignorance of the initial condition for the axion dynamics in the early Universe has led us to consider an valued initial amplitude, and that prefers the decay constant, $F_a…
A Novel Probe of Supersymmetry in Light of Nanohertz Gravitational Waves
Kai Murai, Wen Yin
A new era of exploring the early Universe may have begun with the recent strong evidence for the stochastic gravitational wave (GW) background from the data reported by NANOGrav, E…
Gravitational Waves from Domain Wall Collapse, and Application to Nanohertz Signals with QCD-coupled Axions
Naoya Kitajima, Junseok Lee, Kai Murai +2
We study for the first time the gravitational waves generated during the collapse of domain walls, incorporating the potential bias in the lattice simulations. The final stages of…
The QCD Axion: A Unique Player in the Axiverse with Mixings
Kai Murai, Fuminobu Takahashi, Wen Yin
In an axiverse with numerous axions, the cosmological moduli problem poses a significant challenge because the abundance of axions can easily exceed that of dark matter. The well-e…
Thermal production of cold "hot dark matter" around eV
Wen Yin
A very simple production mechanism of feebly interacting dark matter (DM) that rarely annihilates is thermal production, which predicts the DM mass around eV. This has been widely…
Hadrophobic Axion from GUT
Fuminobu Takahashi, Wen Yin
We propose a new kind of axion model derived from the Grand Unified Theory (GUT) based on . We demonstrate that, given a certain charge assignment and po…
Stability of domain wall network with initial inflationary fluctuations, and its implications for cosmic birefringence
Diego Gonzalez, Naoya Kitajima, Fuminobu Takahashi +1
We study the formation and evolution of domain walls with initial inflationary fluctuations by numerical lattice calculations that, for the first time, correctly take into account…
Weak-Scale Higgs Inflation
Wen Yin
The present measurement of the standard model (SM) parameters suggests that the Higgs effective potential has a maximum at the intermediate scale, and the electroweak (EW) vacuum i…
Axion dark matter from first-order phase transition, and very high energy photons from GRB 221009A
Shota Nakagawa, Fuminobu Takahashi, Masaki Yamada +1
We study an axion-like particle (ALP) that experiences the first-order phase transition with respect to its mass or potential minimum. This can be realized if the ALP obtains a pot…
Probing a light dark sector at future lepton colliders via invisible decays of the SM-like and dark Higgs bosons
Gholamhossein Haghighat, Mojtaba Mohammadi Najafabadi, Kodai Sakurai +1
A renormalizable UV model for Axion-Like Particles (ALPs) or hidden photons, that may explain the dark matter usually involves a dark Higgs field which is a singlet under the stand…
Indirect Detection of eV Dark Matter via Infrared Spectroscopy
Taiki Bessho, Yuji Ikeda, Wen Yin
Infrared spectroscopy has been developed significantly. In particular, infrared photons can be measured with high spectral and angular resolution in state-of-art spectrographs. The…
Ultra-relativistic bubbles from the simplest Higgs portal and their cosmological consequences
Aleksandr Azatov, Giulio Barni, Sabyasachi Chakraborty +2
We analyze the phase transitions in the minimal extension of the SM with a real singlet scalar field. The novelty of our study is that we identify and analyze in details the region…
High Energy Sphalerons for Baryogenesis at Low Temperatures
Joerg Jaeckel, Wen Yin
We discuss baryogenesis in scenarios where the Universe is reheated to temperatures GeV by the decay of long-lived massive particles into energetic SM particles. Be…
Instability of the Electroweak Vacuum in Starobinsky Inflation
Qiang Li, Takeo Moroi, Kazunori Nakayama +1
We study the stability of the electroweak vacuum during and after the Starobinsky inflation, assuming the existence of the non-minimal Higgs coupling to the Ricci scalar. In the St…
Anisotropic cosmic optical background bound for decaying dark matter in light of the LORRI anomaly
Kazunori Nakayama, Wen Yin
Recently anomalous flux in the cosmic optical background (COB) has been reported by the New Horizon observations. The COB flux is , at the LO…
Singlet extensions and W boson mass in the light of the CDF II result
Kodai Sakurai, Fuminobu Takahashi, Wen Yin
Recently, the CDF collaboration has reported the precise measurement of the W boson mass, MeV, based on fb of TeV c…
Suppression of Higgs Mixing by Quantum Zeno Effect
Kodai Sakurai, Wen Yin
The Higgs portal interaction to a singlet sector of the standard model (SM) gauge group is widely-studied. In this Letter, we show that a quantum effect is important if the Higgs f…
Phenomenology of CP-even ALP
Kodai Sakurai, Wen Yin
Axion or axion-like particle (ALP) has been usually considered as a CP-odd Nambu-Goldstone boson (NGB) from the spontaneous breakdown of a global U(1) symmetry. In this paper, we p…
Shining ALP Dark Radiation
Joerg Jaeckel, Wen Yin
String scenarios typically not only predict axion-like particles (ALPs) but also significant amounts of ALP dark radiation originating from the decay of the inflaton or a more gene…
Small cosmological constant from a peculiar inflaton potential
Wen Yin
We propose a novel scenario to explain the small cosmological constant (CC) by a finely tuned inflaton potential. The tuned shape is stable under radiative corrections, and our set…
Baryogenesis via relativistic bubble walls
Aleksandr Azatov, Miguel Vanvlasselaer, Wen Yin
We present a novel mechanism which leads to the baryon asymmetry generation during the strong first order phase transition. If the bubble wall propagates with ultra-relativistic ve…