851 citations · 12.8k across the 188 of their papers we have counts for
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Search for WIMPs at future colliders
Hajime Fukuda, Takeo Moroi, Atsuya Niki +1
Weakly interacting massive particles (WIMPs) with electroweak charges, such as the wino and the Higgsino, stand out as natural candidates for dark matter in the universe. In this p…
Dark matter detection using nuclear magnetization in magnet with hyperfine interaction
So Chigusa, Takeo Moroi, Kazunori Nakayama +1
We consider the possibility to detect cosmic light dark matter (DM), i.e., axions and dark photons, of mass eV and eV, by magnetic excitation in a mag…
Stability of Electroweak Vacuum and Supersymmetric Contribution to Muon g-2
So Chigusa, Takeo Moroi, Yutaro Shoji
We study the stability of the electroweak vacuum in the supersymmetric (SUSY) standard model (SM), paying particular attention to its relation to the SUSY contribution to the muon…
Detection of hidden photon dark matter using the direct excitation of transmon qubits
Shion Chen, Hajime Fukuda, Toshiaki Inada +3
We propose a novel dark matter detection method utilizing the excitation of superconducting transmon qubits. Assuming the hidden photon dark matter of a mass of ,…
Report of the Topical Group on Physics Beyond the Standard Model at Energy Frontier for Snowmass 2021
Tulika Bose, Antonio Boveia, Caterina Doglioni +318
This is the Snowmass2021 Energy Frontier (EF) Beyond the Standard Model (BSM) report. It combines the EF topical group reports of EF08 (Model-specific explorations), EF09 (More gen…
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…
Leptophilic Gauge Bosons at Lepton Beam Dump Experiments
Takeo Moroi, Atsuya Niki
It has been recently known that we can use beams of future lepton colliders, the International Linear Collider (ILC), the Compact Linear Collider (CLIC), and the muon collider, for…
Observing Axion Emission from Supernova with Collider Detectors
Shoji Asai, Yoshiki Kanazawa, Takeo Moroi +1
We consider a possibility to observe the axion emission from a nearby supernova (SN) in the future, which can be known in advance by the pre-SN alert system, by collider detectors…
Upper bound on the smuon mass from vacuum stability in the light of muon anomaly
So Chigusa, Takeo Moroi, Yutaro Shoji
We derive an upper bound on the smuon mass assuming that the muon anomaly is explained by the supersymmetric (SUSY) contribution. In the minimal SUSY standard model, the SUSY…
Stau study at the ILC and its implication for the muon g-2 anomaly
Motoi Endo, Koichi Hamaguchi, Sho Iwamoto +4
Once all the sleptons as well as the Bino are observed at the ILC, the Bino contribution to the muon anomalous magnetic dipole moment (muon ) in supersymmetric (SUSY) models c…
Hidden Dark Matter from Starobinsky Inflation
Qiang Li, Takeo Moroi, Kazunori Nakayama +1
The Starobinsky inflation model is one of the simplest inflation models that is consistent with the cosmic microwave background observations. In order to explain dark matter of the…
Leptophilic Gauge Bosons at ILC Beam Dump Experiment
Kento Asai, Takeo Moroi, Atsuya Niki
We study the prospects of searching for leptophilic gauge bosons (LGBs) at the beam dump experiment using beams of International Linear Collider (ILC). We consider…
Studying squark mass spectrum through gluino decay at 100 TeV future hadron colliders
So Chigusa, Koichi Hamaguchi, Takeo Moroi +2
We study the prospect of determining the decay properties of the gluino in the supersymmetric (SUSY) standard model at a 100 TeV future hadron collider. We consider the case where…
Axion/Hidden-Photon Dark Matter Conversion into Condensed Matter Axion
So Chigusa, Takeo Moroi, Kazunori Nakayama
The QCD axion or axion-like particles are candidates of dark matter of the universe. On the other hand, axion-like excitations exist in certain condensed matter systems, which impl…
Leptonic CP and Flavor Violations in SUSY GUT with Right-handed Neutrinos
Kaigo Hirao, Takeo Moroi
We study leptonic CP and flavor violations in supersymmetric (SUSY) grand unified theory (GUT) with right handed neutrinos, paying attention to the renormalization group effects on…
Particle Production from Oscillating Scalar Field and Consistency of Boltzmann Equation
Takeo Moroi, Wen Yin
Boltzmann equation plays important roles in particle cosmology in studying the evolution of distribution functions (also called as occupation numbers) of various particles. For the…
Light Dark Matter from Inflaton Decay
Takeo Moroi, Wen Yin
We propose a simple mechanism of light dark matter (DM) production from the decay of the oscillating inflaton condensation. If the reheating temperature after inflation is higher t…
Precise Calculation of the Decay Rate of False Vacuum with Multi-Field Bounce
So Chigusa, Takeo Moroi, Yutaro Shoji
We study the decay rate of a false vacuum in gauge theory at the one-loop level. We pay particular attention to the case where the bounce consists of an arbitrary number of scalar…
Big-bang nucleosynthesis with sub-GeV massive decaying particles
Masahiro Kawasaki, Kazunori Kohri, Takeo Moroi +2
We consider the effects of the injections of energetic photon and electron (or positron) on the big-bang nucleosynthesis. We study the photodissociation of light elements in the ea…
Detecting Light Boson Dark Matter through Conversion into Magnon
So Chigusa, Takeo Moroi, Kazunori Nakayama
Light boson dark matter such as axion or hidden photon can be resonantly converted into a magnon in a magnetic insulator under the magnetic field, which can be detected experimenta…
Determining Wino Lifetime in Supersymmetric Model at Future 100 TeV pp Colliders
So Chigusa, Yusuke Hosomi, Takeo Moroi +1
We discuss a possibility to measure the lifetime of charged Wino in supersymmetric model at future 100 TeV pp colliders, assuming that (neutral) Wino is the lightest superparticle…
Bounce Configuration from Gradient Flow
So Chigusa, Takeo Moroi, Yutaro Shoji
Based on the gradient flow, we propose a new method to determine the bounce configuration for false vacuum decay. Our method is applicable to a large class of models with multiple…
Indirect Studies of Electroweakly Interacting Particles at 100 TeV Hadron Colliders
Tomohiro Abe, So Chigusa, Yohei Ema +1
There are many extensions of the standard model that predict the existence of electroweakly interacting massive particles (EWIMPs), in particular in the context of the dark matter.…
Studying gaugino masses in supersymmetric model at future 100 TeV collider
Shoji Asai, So Chigusa, Toshiaki Kaji +6
We discuss prospects of studying supersymmetric model at future circular collider (FCC) with its centre-of-mass energy of . We pay particular attention to…