69 citations · 260 across the 26 of their papers we have counts for
26 papers
Interplay between decoupling and non-decoupling effective field theories in electroweak phase transitions
Katsuya Hashino, Daiki Ueda
Gravitational-wave (GW) observations offer a promising probe of new physics associated with a strong first-order electroweak phase transition. Null results from direct searches and…
Bounds on nonlinear electrodynamics via resummed relative entropy
Pietro Conzinu, Daiki Ueda
We investigate nonlinear electrodynamic effective field theories (EFTs) through the relative entropy evaluated in suitable background electromagnetic fields. In this setup, the rel…
The Spurion Massive EFT (SMEFT)
Julian L. Northey, Yael Shadmi, Yotam Soreq +1
We use the amplitude formulation of the SMEFT to introduce a spurion analysis of the SMEFT low-energy amplitudes in terms of the Higgs VEV. Each SMEFT contact-term is given as a su…
Bounds on nonlinear effective field theories via resurgent relative entropy
Pietro Conzinu, Daiki Ueda
We study a class of nonlinear effective field theories (EFTs) in which relative entropy organizes an infinite tower of higher-dimensional operators with factorially growing coeffic…
Muon collider experiments as electron/positron beam sources: case studies of new light-particle searches
Yasuhito Sakaki, Daiki Ueda
At muon colliders, muon decays naturally produce intense electrons and positrons with unique features, namely high energies, high repetition rates, and small intrinsic uncertaintie…
Quantum Resonance Beyond Direct Measurement: Insights from Weak Measurement
Daiki Ueda, Izumi Tsutsui
Aharonov's weak value amplification realized via weak measurement provides a versatile means to measure physical parameters with high accuracy, similar to quantum resonance epitomi…
RGE effects on new physics searches via gravitational waves
Katsuya Hashino, Daiki Ueda
Gravitational wave (GW) observations offer a promising probe of new physics associated with a first-order electroweak phase transition. Precision studies of the Higgs potential, in…
Searching for neutrino self-interactions at future muon colliders
Hongkai Liu, Daiki Ueda
Multi-TeV muon colliders offer a powerful means of accessing new physics coupled to muons while generating clean and intense high-energy neutrino beams via muon decays. We study a…
Consistency of EFT illuminated via relative entropy: A case study in scalar field theory
Daiki Ueda, Kazuhiro Tatsumi
Relative entropy is a non-negative quantity and offers a powerful means of achieving a unified understanding of fundamental properties in physics, including the second law of therm…
Quantum Resonance viewed as Weak Measurement
Daiki Ueda, Izumi Tsutsui
Quantum resonance, i.e., amplification in transition probability available under certain conditions, offers a powerful means for determining fundamental quantities in physics, incl…
Sub-GeV dark matter search at ILC beam dumps
Kento Asai, Sho Iwamoto, Maxim Perelstein +2
Light dark matter particles may be produced in electron and positron beam dumps of the International Linear Collider (ILC). We propose an experimental setup to search for such even…
Effective field theory in light of relative entropy
Qing-Hong Cao, Naoto Kan, Daiki Ueda
We study constraints on the effective field theory (EFT) from the relative entropy between two theories: we refer to these as target and reference theories. The consequence of the…
SMEFT effects on gravitational wave spectrum from electroweak phase transition
Katsuya Hashino, Daiki Ueda
Future gravitational wave observations are potentially sensitive to new physics corrections to the Higgs potential once the first-order electroweak phase transition arises. We stud…
First Evaluation of Meson and lepton Spectra and Search for Heavy Neutral Leptons at ILC Beam Dump
Mihoko M. Nojiri, Yasuihito Sakaki, Kohsaku Tobioka +1
A beam dump experiment can be seamlessly added to the {proposed} International Linear Collider (ILC) program because the high energy electron beam should be dumped after the collis…
The International Linear Collider: Report to Snowmass 2021
Alexander Aryshev, Ties Behnke, Mikael Berggren +508
The International Linear Collider (ILC) is on the table now as a new global energy-frontier accelerator laboratory taking data in the 2030s. The ILC addresses key questions for our…
Entropy constraints on effective field theory
Qing-Hong Cao, Daiki Ueda
In effective field theory, the positivity bounds of higher derivative operators are derived from analyticity, causality, and unitarity. We show that the positivity bounds on some o…
New physics searches at the ILC positron and electron beam dumps
Kento Asai, Sho Iwamoto, Yasuhito Sakaki +1
We study capability of the ILC beam dump experiment to search for new physics, comparing the performance of the electron and positron beam dumps. The dark photon, axion-like partic…
Revisiting electroweak radiative corrections to in SMEFT
Motoi Endo, Satoshi Mishima, Daiki Ueda
We revisit electroweak radiative corrections to Standard Model Effective Field Theory (SMEFT) operators which are relevant for the -meson semileptonic decays. The one-loop match…
Search for new light particles at ILC main beam dump
Yasuhito Sakaki, Daiki Ueda
We perform a feasibility study of a beam dump experiment at the International Linear Collider (ILC). To investigate the sensitivity to new light particles at the experiment, we con…
Novel approach to neutron electric dipole moment search using weak measurement
Daiki Ueda, Teppei Kitahara
We propose a novel approach in a search for the neutron electric dipole moment (EDM) by taking advantage of signal amplification in a weak measurement, known as weak value amplific…
Revisiting weak measurement in light of thermodynamics
Daiki Ueda, Hikaru Ohta, Sumito Yokoo
We investigate a weak measurement described by a von Neumann type interaction , where is a system observable and is a measurement po…
Heat capacity of liquids in light of hydrodynamics as U(1) gauge theory
Yoshinori Tomiyoshi, Daiki Ueda
We investigate the heat capacity of liquids through a theoretical approach based on a quasiparticle description. By interpreting the microscopic dynamics of particles in liquids in…
SMEFT top-quark effects on observables
Motoi Endo, Teppei Kitahara, Daiki Ueda
We investigate model independent top-quark corrections to processes for the down-type quarks within the framework of the Standard Model Effective Field Theory. Dimension-s…
Amplification of gravitational motion via Quantum weak measurement
Kiyoharu Kawana, Daiki Ueda
We investigate a new experimental possibility of measuring the Newtonian gravitational constant by using the weak measurement. Amplification via weak measurement is one of the…