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International Joint Workshop on the Standard Model and Beyond 2025

→ Asia/Taipei
National Center for Theoretical Sciences, NTU, Taipei, Taiwan

National Center for Theoretical Sciences, NTU, Taipei, Taiwan

Cosmology Hall, National Taiwan University No. 1, Sec. 4, Roosevelt Rd., Taipei 106319, Taiwan
Description

The International Joint Workshop on the Standard Model and Beyond 2025 takes place on 9-12 Dec 2025 at the National Center for Theoretical Sciences, National Taiwan University, Taipei, Taiwan.

The Joint Workshop aims to bring theorists to discuss current ideas on recent developments in particle physics, cosmology and astroparticle physics in the context of testing the Standard Model and searches for new physics beyond the SM, offer a platform for collaboration between researchers from different institutes, and provide opportunities for young researchers to establish themselves in the community.

The meeting features invited plenary talks covering topics of recent interest, as well as a number of parallel sessions for junior scientists to present their work.

 

Invited speakers: 

Eung Jin Chun (KIAS)
Peter Denton (BNL)^
John Gargalionis (The University of Adelaide)
Huai-Ke Guo (UCAS-CAS)^
Yuta Hamada (KEK)
Ahmed Hammad (KEK)
Pyungwon Ko (KIAS)
Archil Kobakhidze (The University of Sydney)^
Duc Ninh Le (Phenikaa University)
Seung Joon Lee (KIAS)
Jae Sik Lee (Chonnam National University)
Hsiang-nan Li (Academia Sinica)
Cheng-Pang Liu (National Dong Hwa University)
Chih-Ting Lu (Nanjing Normal University)^
Takeo Moroi (The University of Tokyo)
Kin-Wang Ng (Academia Sinica)
Quynh Lan Nguyen (Phenikaa University)
Mihoko Nojiri (KEK)
Chien-Yeah Seng (The University of Tennessee)
Chia-Hsien Shen (National Taiwan University)
Minho Son (KAIST)
Fuminobu Takahashi (Tohoku University)
Yu-Dai Tsai (UC Irvine)^
Yuhsin Tsai (University of Notre Dame)^
Raymond Volkas (The University of Melbourne)
Shao-Jiang Wang (ITP-CAS)^
Xunjie Xu (IHEP-CAS)^

^remote participation

 

Previous International Joint Workshops

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Participants
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  • Tuesday 9 December
    • 08:30
      Registration
    • 1
      Opening NTU Cosmology Hall, 4F Lecture Hall

      NTU Cosmology Hall, 4F Lecture Hall
    • 2
      The fermion mass hierarchy problem NTU Cosmology Hall, 4F Lecture Hall

      NTU Cosmology Hall, 4F Lecture Hall
      Speaker: Raymond Volkas
      Volkas-Taipei-2025.pdf
    • 3
      4X4 CKM matrix and search for 4th generation quarks at the LHC NTU Cosmology Hall, 4F Lecture Hall

      NTU Cosmology Hall, 4F Lecture Hall
      Speaker: Hsiang-nan Li
    • 10:20
      Coffee Break
    • 4
      New physics within the Standard Model: the case for electroweak eta (online) NTU Cosmology Hall, 4F Lecture Hall

      NTU Cosmology Hall, 4F Lecture Hall
      Speaker: Archil Kobakhidze
      Archil_Kobakhidze.pdf
    • 5
      Cosmic Millicharge Background and Pure Gravitational Dark Matter Detections (online) NTU Cosmology Hall, 4F Lecture Hall

      NTU Cosmology Hall, 4F Lecture Hall
      Speaker: Yu-Dai Tsai
    • 12:00
      Lunch Break
    • 6
      Theoretical status of polarized multi-boson production NTU Cosmology Hall, 4F Lecture Hall

      NTU Cosmology Hall, 4F Lecture Hall
      Speaker: Duc Ninh Le
      ninh_JointW_NTU25.pdf
    • 7
      Spin density matrix of a two-qubit system at colliders NTU Cosmology Hall, 4F Lecture Hall

      NTU Cosmology Hall, 4F Lecture Hall
      Speaker: Jae Sik Lee
    • 8
      Parameter space sampling assisted by machine learning methods NTU Cosmology Hall, 4F Lecture Hall

      NTU Cosmology Hall, 4F Lecture Hall
      Speaker: Ahmed Hammad
    • 15:45
      Coffee Break
    • 9
      Decaying heavy Dirac fermion DM with RHN portals for AMS02, IceCUBE, KM3 NTU Cosmology Hall, 4F Lecture Hall

      NTU Cosmology Hall, 4F Lecture Hall
      Speaker: Pyungwon Ko
      NCTS2025_Ko.pdf
    • 10
      Many-body atomic response functions for direct searches of light dark matter NTU Cosmology Hall, 4F Lecture Hall

      NTU Cosmology Hall, 4F Lecture Hall
      Speaker: Cheng-Pang Liu
      IJW2025_20251209_rev1.pdf
    • 11
      Dark Matter Detection with Rydberg Atoms NTU Cosmology Hall, 4F Lecture Hall

      NTU Cosmology Hall, 4F Lecture Hall
      Speaker: Takeo Moroi
      Moroi_Taipei25.pdf
    • 18:00
      Welcome Reception NTU Cosmology Hall, 4F

      NTU Cosmology Hall, 4F
  • Wednesday 10 December
    • 12
      Topological defects in a multi-axion system and QCD axion domain wall problem NTU Cosmology Hall, 4F Lecture Hall

      NTU Cosmology Hall, 4F Lecture Hall
      Speaker: Fuminobu Takahashi
      Takahashi1205.pdf
    • 13
      Cosmological Quasiparticles and the Cosmological Collider NTU Cosmology Hall, 4F Lecture Hall

      NTU Cosmology Hall, 4F Lecture Hall

      In this talk, I will introduce the intriguing interplay between cosmology and strongly coupled dynamics, showing how temporary spectral features can leave lasting, observable imprints on the primordial fluctuation spectrum. Focusing on nearly conformal extensions of the Standard Model and employing AdS/CFT reasoning, I will demonstrate the emergence of gapped structures and distinct particle-like peaks in the scalar operator's spectral density within an inflationary setting. I will then estimate their contribution to cosmological observables, emphasizing unique, potentially detectable phenomena for future experiments, such as displaced oscillations in the squeezed bi-spectrum, originating from both fundamental and composite particles, and briefly touch upon the link between conformal symmetry breaking stabilization and these spectral signatures.

      Speaker: Seung Joon Lee
      Cosmological_Quasiparticles_IJW.pdf
    • 10:20
      Coffee Break
    • 14
      Flowing one-point energy correlator in QCD NTU Cosmology Hall, 4F Lecture Hall

      NTU Cosmology Hall, 4F Lecture Hall
      Speaker: Minho Son
      Taipei-SON.pdf
    • 15
      Transformers for particle physics NTU Cosmology Hall, 4F Lecture Hall

      NTU Cosmology Hall, 4F Lecture Hall

      Collisions of high energy particles trigger multiple interactions and
      result in complex patterns of particles in the final state.
      Theoretical particle physics has been evolving continuously to deepen
      our understanding of these phenomena, to determine the fundamental
      interaction of particles and searching for unknown matters in our
      Universe. How might the recent advances in deep learning accelerate
      this process? In this talk, we will present our recent works, focusing
      on ideas related to Transformer architectures.

      Speaker: Mihoko Nojiri
      NCT_nojiri_2025.12.10.pdf
    • 12:00
      Workshop photo session
    • 12:10
      Lunch Break
    • 16
      Magic and entanglement in SM scattering processes NTU Cosmology Hall, 4F Lecture Hall

      NTU Cosmology Hall, 4F Lecture Hall
      Speaker: John Gargalionis
      gargalionis-taipei-2025.pdf
    • 17
      GWB lessons learned from CMB, LIGO, and PTA NTU Cosmology Hall, 4F Lecture Hall

      NTU Cosmology Hall, 4F Lecture Hall
      Speaker: Kin-Wang Ng
      NCTS_SMB25_Ng.pdf
    • 18
      Magnetic helicity, monopoles, and baryon asymmetry NTU Cosmology Hall, 4F Lecture Hall

      NTU Cosmology Hall, 4F Lecture Hall
      Speaker: Yuta Hamada
      Hamada_JointWorkshop.pdf
    • 15:45
      Coffee Break
    • 19
      Thermal production of gravitational waves in the early universe (online) NTU Cosmology Hall, 4F Lecture Hall

      NTU Cosmology Hall, 4F Lecture Hall
      Speaker: Xunjie Xu
      Xunjie_Xu.pdf
    • 20
      Gravitational waves from early Universe (online) NTU Cosmology Hall, 4F Lecture Hall

      NTU Cosmology Hall, 4F Lecture Hall
      Speaker: Shao-Jiang Wang
    • 21
      Detecting Gravitational Waves from the Electroweak Phase Transition (online) NTU Cosmology Hall, 4F Lecture Hall

      NTU Cosmology Hall, 4F Lecture Hall
      Speaker: Huaike Guo
      Huaike Guo.pdf
    • 18:00
      Dinner (by invitation)
  • Thursday 11 December
    • 22
      Dark Matter in the Beyond Standard Model and its Effect on the Gravitational Waves Signal NTU Cosmology Hall, 4F Lecture Hall

      NTU Cosmology Hall, 4F Lecture Hall
      Speaker: Quynh Lan Nguyen
    • 23
      Echoes of Self-Interacting Dark Matter from Binary Black Hole Mergers (online) NTU Cosmology Hall, 4F Lecture Hall

      NTU Cosmology Hall, 4F Lecture Hall
      Speaker: Yuhsin Tsai
    • 10:20
      Coffee Break
    • 24
      Probing sub-GeV dark matter via cosmic ray cooling in active galactic nuclei (online) NTU Cosmology Hall, 4F Lecture Hall

      NTU Cosmology Hall, 4F Lecture Hall
      Speaker: Chih-Ting Lu
      CTLu_2025.pdf
    • 25
      Precision Tests of the Standard Model with Beta Decays NTU Cosmology Hall, 4F Lecture Hall

      NTU Cosmology Hall, 4F Lecture Hall
      Speaker: Chien Yeah Seng
      Seng.pdf
    • 12:00
      Lunch Break
    • 13:55
      Parallel Session A (4F Lecture Hall)
    • 13:55
      Parallel Session B (3F, Rm. 307)
    • 26
      Heavy neutral lepton at same-sign muon collider NTU Cosmology Hall, 3F R307

      NTU Cosmology Hall, 3F R307
      Speaker: Shohei Okawa
    • 27
      Inferring Dark Matter Scales from Stellar Kinematic Distributions in Milky Way-like Galaxies NTU Cosmology Hall, 4F Lecture Hall

      NTU Cosmology Hall, 4F Lecture Hall
      Speaker: Sam Cheng-Tse Huang
    • 28
      Dark matter production from evaporation of regular primordial black holes NTU Cosmology Hall, 4F Lecture Hall

      NTU Cosmology Hall, 4F Lecture Hall
      Speaker: Loc Ngo
      Loc_Workshop_2025.pdf
    • 29
      Probing Terrestrial Relic Neutrino Charge with Mach-Zehnder Interferometer NTU Cosmology Hall, 3F R307

      NTU Cosmology Hall, 3F R307
      Speaker: Vincent Gene Otero
    • 30
      Freeze-in Production of Non-Abelian Millicharged Vector Dark Matter NTU Cosmology Hall, 4F Lecture Hall

      NTU Cosmology Hall, 4F Lecture Hall
      Speaker: Van Que Tran
      VQTran-VDM.pdf
    • 31
      Multi-step Electroweak Phase Transitions and Gravitational Waves in the Inverted Type-I 2HDM NTU Cosmology Hall, 4F Lecture Hall

      NTU Cosmology Hall, 4F Lecture Hall
      Speaker: Soojin Lee
      Soojin_2025Joint_Multistep.pdf
    • 32
      Generating GeV-scale Dark Matter masses from the QCD vacuum NTU Cosmology Hall, 4F Lecture Hall

      NTU Cosmology Hall, 4F Lecture Hall
      Speaker: Yi Chung
      YiChung.pdf
    • 33
      No talk
    • 15:40
      Coffee Break
    • 34
      Neutrinogenic CMB spectral distortions (online) NTU Cosmology Hall, 3F R307

      NTU Cosmology Hall, 3F R307
      Speaker: Shaoping Li
    • 35
      Signatures of scalaronic dark matter on gravitational waves in modified gravity NTU Cosmology Hall, 4F Lecture Hall

      NTU Cosmology Hall, 4F Lecture Hall
      Speaker: Murli Manohar Verma
      Taipei_mmv.pdf
    • 36
      Gravitational-Wave Signatures of Nonstandard Neutrino Properties in Collapsing Stellar Cores NTU Cosmology Hall, 4F Lecture Hall

      NTU Cosmology Hall, 4F Lecture Hall
      Speaker: Jakob Ehring
    • 37
      Oblique parameters S, T, U in dark U(1) models NTU Cosmology Hall, 3F R307

      NTU Cosmology Hall, 3F R307
      Speaker: Kazuki Enomoto
    • 38
      Developing a Systematic Multimessenger Approach for Probing Fundamental Physics and for Astronomy: The Maxwell-Einstein-Pauli Observatory NTU Cosmology Hall, 4F Lecture Hall

      NTU Cosmology Hall, 4F Lecture Hall
      Speaker: Torben Frost
    • 39
      From Primordial Seeds to the High-z Mass Function: Relativistic SIDM Accretion as a Pathway to Early SMBH Growth NTU Cosmology Hall, 3F R307

      NTU Cosmology Hall, 3F R307
      Speaker: Chian-Shu Chen
      Chian_Shu_Chen_International Joint Workshop 2025.pdf
    • 18:30
      Workshop Banquet La Maree

      La Maree

      No. 16, Siyuan St, Zhongzheng District, Taipei
  • Friday 12 December
    • 40
      NuFast (online) NTU Cosmology Hall, 4F Lecture Hall

      NTU Cosmology Hall, 4F Lecture Hall
      Speaker: Peter Denton
      Denton.pdf
    • 41
      Positivity for BSM NTU Cosmology Hall, 4F Lecture Hall

      NTU Cosmology Hall, 4F Lecture Hall
      Speaker: Chia-Hsien Shen
      Chia_Hsien_Shen.pdf
    • 10:20
      Coffee Break
    • 42
      Dirac neutrino EFT NTU Cosmology Hall, 4F Lecture Hall

      NTU Cosmology Hall, 4F Lecture Hall
      Speaker: Eung Jin Chun
      251212 NCTS DNEFT.pdf
    • 43
      Three Ideas for Quantum Sensors in Neutrino Physics NTU Cosmology Hall 4F Lecture Hall

      NTU Cosmology Hall 4F Lecture Hall
      Speaker: Martin Spinrath
      Spinrath_Neutrinos_Quantum_Sensors_long.pdf
    • 12:00
      Lunch
    • 44
      Free Discussions Cosmological Hall, 4F Lecture Hall

      Cosmological Hall, 4F Lecture Hall
    • 18:00
      Farewell Dinner
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