91 citations · 440 across the 31 of their papers we have counts for
32 papers
Adaptive detection of Rabi signals under composite hypotheses
So Chigusa
Motivated by searches for weak coherent drives, we formulate repeated quantum sensing with a fixed shot budget as an asymmetric composite hypothesis test. Taking Rabi sensing as a…
Searches for electroweak states at future plasma wakefield colliders
So Chigusa, Simon Knapen, Toby Opferkuch +3
We quantify the discovery potential of future multi-TeV plasma wakefield colliders for new electroweak multiplets. We include beam-beam effects through realistic luminosity spectra…
Detecting dark matter using optically trapped Rydberg atom tweezer arrays
So Chigusa, Taiyo Kasamaki, Toshi Kusano +6
A new scheme for detecting wave-like dark matter (DM) using Rydberg atoms is proposed. Recent advances in trapping and manipulating Rydberg atoms make it possible to use Rydberg at…
Interplay of ALP Couplings at a Muon Collider
So Chigusa, Sudhakantha Girmohanta, Yuichiro Nakai +1
Axion-like particles can couple to Standard Model gluons, electroweak gauge bosons, and massive fermions. A future multi-TeV muon collider provides a favorable environment to probe…
Quantum Parton Shower with Kinematics
Christian W. Bauer, So Chigusa, Masahito Yamazaki
Parton showers which can efficiently incorporate quantum interference effects have been shown to be run efficiently on quantum computers. However, so far these quantum parton showe…
Aiming for Tops of ALPs with a Muon Collider
So Chigusa, Sudhakantha Girmohanta, Yuichiro Nakai +1
Future muon colliders with center-of-mass energy of TeV can provide a clean high-energy environment with advantages in searches for TeV-scale axion-like particl…
Effects of Finite Material Size On Axion-magnon Conversion
So Chigusa, Asuka Ito, Kazunori Nakayama +1
Magnetic materials are particularly favorable targets for detecting axions interacting with electrons because the collective excitation of electron spins, the magnon, can be excite…
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…
Light Dark Matter Search with Nitrogen-Vacancy Centers in Diamonds
So Chigusa, Masashi Hazumi, Ernst David Herbschleb +2
We propose new ideas to directly search for light dark matter, such as the axion or the dark photon, by using magnetometry with nitrogen-vacancy centers in diamonds. If the dark ma…
Quantum Simulations of Dark Sector Showers
So Chigusa, Masahito Yamazaki
We consider dark sector scenarios where dark matter is accompanied by a dark photon and multiple-flavor dark fermions charged under the dark gauge group. We study quantum interfere…
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…
Deeply Learned Preselection of Higgs Dijet Decays at Future Lepton Colliders
So Chigusa, Shu Li, Yuichiro Nakai +3
Future electron-positron colliders will play a leading role in the precision measurement of Higgs boson couplings which is one of the central interests in particle physics. Aiming…
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…
Implications of Gravitational Waves for Supersymmetric Grand Unification
So Chigusa, Yuichiro Nakai, Jiaming Zheng
Supersymmetric grand unification based on is one of the most attractive paradigms in physics beyond the Standard Model. Inspired by the recent NANOGrav signal, we discuss…
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…
Constraints on electron-scattering interpretation of XENON1T excess
So Chigusa, Motoi Endo, Kazunori Kohri
Recently, the XENON1T experiment has observed an excess in the electronic recoil data in the recoil energy range of - keV. One of the most favored new physics interpretations…
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…
Signals of Axion Like Dark Matter in Time Dependent Polarization of Light
So Chigusa, Takeo Moroi, Kazunori Nakayama
We consider the search for axion-like particles (ALPs) by using time series data of the polarization angle of the light. If the condensation of an ALP plays the role of dark matter…
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…
Novel Flavon Stabilization with Trimaximal Neutrino Mixing
So Chigusa, Shinta Kasuya, Kazunori Nakayama
We construct a supersymmetric flavor symmetry model with one of the trimaximal neutrino mixing patterns, the so-called TM, by using the novel way to stabilize flavons, wh…
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.…