KEK Theory Meeting on Particle Physics Phenomenology (KEK-PH2026winter)

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opening

lunch

plenary: Yu Nakazawa, Zoltan Ligeti

reception

plenary: Shunsaku Horiuchi, Toshiya Namikawa

lunch

plenary: Shinya Kanemura, Yannis Georis

plenary: Julia Harz, Yohei Ema

lunch

plenary: Yu Nakahama, Daichi Yoshikawa

plenary: Kohsaku Tobioka, Christiane Scherb

lunch

plenary: Ryusuke Jinno, Mihoko Nojiri

closing

plenary: Kentaro Kawade

parallel session A: Cosmo

parallel session B: Higgs

parallel session A: Theory

parallel session B: Cosmo

parallel session A: DM

parallel session B: Higgs

parallel session A: DM

parallel session B: Flavor

parallel session A: DM

parallel session B: Cosmo

parallel session A: EW

parallel session B: ML

parallel session A: EW/Theory

parallel session B: Flavor/Baryogenesis

parallel session A: DM

parallel session B: Flavor/Cosmo

plenary: Michael Spannowsky, Jure Zupan

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Contributions*

A brief overview of ACT DR6 results (in session "plenary: Shunsaku Horiuchi, Toshiya Namikawa")

A TeV-scale model for neutrino mass, dark matter and baryon asymmetry of the universe and its phenomenology (in session "parallel session B: Flavor/Baryogenesis")

Advancing Standards in Early Universe Physics: The Impact of Bound States & Thermal Effects (in session "plenary: Julia Harz, Yohei Ema")

An Analytic Prescription for t-channel Singularities (in session "parallel session A: EW")

Analysis of Monopoles Associated with Multi-Step Spontaneous Breaking of Gauge Symmetries (in session "parallel session A: Theory")

Asymmetric Dark Matter from Low-Scale Spontaneous Leptogenesis (in session "parallel session A: DM")

B physics: known and unknown (in session "plenary: Yu Nakazawa, Zoltan Ligeti")

Chasing Long-lived Scalars at the Future Lepton Colliders (in session "parallel session B: Higgs")

Composite Asymmetric Dark Matter from Primordial Black Holes (in session "parallel session A: DM")

Constraints on MeV Axion Models from Kaon Decays with KTeV Data (in session "parallel session B: Flavor/Cosmo")

Current Status and Future Prospects of Belle II (in session "plenary: Yu Nakazawa, Zoltan Ligeti")

Cutting rule for cosmological correlators and its applications (in session "plenary: Julia Harz, Yohei Ema")

Dark matter explanations for the neutrino emission from the Seyfert galaxy NGC 1068 (in session "parallel session A: DM")

Diffuse Multi-messenger Signals of Dark Matter Powered Stars (in session "parallel session A: DM")

Emission of Nambu-Goldstone bosons from semilocal string networks (in session "parallel session A: Cosmo")

Exploring Lepton Flavor Structures with a Latent Diffusion Model (in session "parallel session B: ML")

Extended Higgs sectors and a scenario of electroweak baryogenesis (in session "plenary: Shinya Kanemura, Yannis Georis")

First-order phase transitions in the early Universe: Recent theoretical/experimental progress (in session "plenary: Ryusuke Jinno, Mihoko Nojiri")

Forbidden Dark Matter with Sommerfeld Enhancement (in session "parallel session A: DM")

Gradient-flowed operator product expansion without IR renormalons (in session "parallel session A: EW/Theory")

Gravitational Wave signatures of Reheating after Warm Axion Inflation (in session "parallel session B: Cosmo")

Higgs production in association with a Z boson at TeV-scale lepton colliders (in session "parallel session B: Higgs")

How LLM can help particle physicists (in session "plenary: Ryusuke Jinno, Mihoko Nojiri")

Impact of quark flavor violating SUSY on h(125) decays at future lepton colliders (in session "parallel session B: Higgs")

Light neutrinophilic thermal dark matter (in session "parallel session A: DM")

Light new physics and rare tau decays (in session "plenary: Michael Spannowsky, Jure Zupan")

Machine learning the likelihoods (in session "parallel session B: ML")

MeV-Scale Sterile Neutrino Dark Matter and Future Detection (in session "parallel session A: DM")

Minimal Dark Matter in the sky: updated Indirect Detection probes (in session "parallel session A: DM")

New Axion Bounds from Big Bang Nucleosynthesis (in session "plenary: Kohsaku Tobioka, Christiane Scherb")

Phenomenology of electroweakly interacting spin-1 dark matter with Sommerfeld enhancement (in session "parallel session A: DM")

Possible scenarios for baryogenesis in the presence of a lepton number violating operator in the rare meson decays (in session "parallel session B: Flavor")

Probing Scalar-Mediator Quark Couplings via CLFV Lepton-Nucleon Scattering (in session "parallel session B: Flavor/Baryogenesis")

Probing spontaneous CP-violation through precision Higgs observables (in session "parallel session B: Higgs")

Quantum Machine Learning for High-Energy Physics (in session "plenary: Michael Spannowsky, Jure Zupan")

Quantum sensing of high-frequency gravitational waves with ion traps (in session "parallel session B: Cosmo")

Quintessence with a sudden transitional feature and its late-time cosmological signals (in session "parallel session B: Cosmo")

Radiative Corrections to $D_s \to \ell \nu$ and CKM Unitarity Test (in session "parallel session B: Flavor")

Rare meson decay constraints on dark photon and the like (in session "parallel session B: Flavor")

Relaxing Cosmological Constraints on the Minimal $U(1)_{L_\mu - L_\tau}$ Model with One-Loop Corrections (in session "parallel session A: Cosmo")

Screening Effects of Finite-Mass Fermions in Monopole Baryogenesis Scenario (in session "parallel session B: Cosmo")

Searching for dark matter in the gamma-ray sky (in session "plenary: Shunsaku Horiuchi, Toshiya Namikawa")

Searching for Leptoquarks at Future Circular Colliders (in session "parallel session A: EW")

Selected highlights from the LHC-ATLAS experiment (in session "plenary: Yu Nakahama, Daichi Yoshikawa")

Sommerfeld Enhancement in the light of Halo gamma-ray excess (in session "parallel session A: DM")

Supersymmetric Gauge Theories with Confining Phases (in session "parallel session A: Theory")

Sweeping the pion chimney for axion-like particles with KOTO (in session "plenary: Kohsaku Tobioka, Christiane Scherb")

Systematic mapping of $U(1)_{L_{e}-L_{mu}-L_{tau}}$ flavor model via reinforcement learning (in session "parallel session B: ML")

Testable leptogenesis with three right-handed neutrinos (in session "plenary: Shinya Kanemura, Yannis Georis")

Testing the Higgs triplet model via 125GeV Higgs boson decays with radiative corrections (in session "parallel session B: Higgs")

The EIC and ePIC Experiments: Current Status and Synergies with High-Energy Physics (in session "plenary: Kentaro Kawade")

The Electric Dipole Moment of electron induced by Electroweak Multiplets at full Three-loop (in session "parallel session A: EW/Theory")

The recent progress from FASER, focusing on the Axion-Like Particle search and Dark Photon search (in session "plenary: Yu Nakahama, Daichi Yoshikawa")

Thermal Lepton Oscillations in Leptogenesis (in session "parallel session B: Flavor/Cosmo")

Thermal precondensation in gauge-fermion theories and its cosmological implications (in session "parallel session B: Cosmo")

Three-body entanglement and nonlocality in particle decays (in session "parallel session A: EW")

Toponium at the LHC (in session "parallel session A: EW/Theory")

Two Higgs doublet models with a new U(1) gauge symmetry (in session "parallel session B: Higgs")

Walking-Dilaton Hybrid Inflation in a Model with Dynamical Scalegenesis (in session "parallel session A: Cosmo")

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Events scheduled on*

15/02/2026

16/02/2026

17/02/2026

18/02/2026

19/02/2026

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