The 18th International Workshop on Tau Lepton Physics (TAU2025)

from Monday 20 October 2025 (00:00) to Friday 24 October 2025 (19:00)
Marseille (Amphitheatre Gastaut)

        : Sessions
    /     : Talks
        : Breaks
20 Oct 2025
21 Oct 2025
22 Oct 2025
23 Oct 2025
24 Oct 2025
AM
08:30
Registration (until 09:15)
09:15
Plenary session - Justine Serrano (Aix Marseille Univ, CNRS/IN2P3, CPPM, Marseille, France) (until 10:45)
09:15 Welcome - Justine Serrano (Aix Marseille Univ, CNRS/IN2P3, CPPM, Marseille, France)  
09:25 Overview of Tau physics - Emilie Passemar  
10:05 Tau and NP - Gino Isidori (University of Zurich (CH))  
10:45 --- Your beverage of choice break ---
11:15
Plenary session - Aoife Bharucha (until 12:50)
11:15 Simulation of tau decays, ambiguities and anomalous couplings effects. - Zbigniew Andrzej Was (Polish Academy of Sciences (PL))  
11:45 Averages of tau branching fractions and combined tau lepton-flavour-violating branching fractions limits by HFLAV - Alberto Lusiani (Scuola Normale Superiore and INFN, sezione di Pisa)  
12:05 Beyond Form Factors: Precise Angular Tests in Hadronic τ Decays - Santiago Paz Castro (Universitat de València)  
12:25 Status of Jparc experiments - Ce Zhang (University of Liverpool)  
09:00
Plenary session - Marc KNECHT (until 10:30)
09:00 Muon g-2 overview - Dr Gerardin Antoine (CPT Marseille)  
09:40 Result from Fermilab muon g-2 experiment - Estifa'a Zaid (university of liverpool)  
10:10 New precise measurement of e+e- to pi+pi- with BABAR for muon g-2 prediction - Dr Léonard POLAT (LPNHE-Paris/IJClab-Orsay)  
10:30 --- Break without coffee ---
11:00
Plenary session - Michael Roney (until 11:40)
11:00 Advancing Precision Calculations of the Tau Lepton's Magnetic and Electric Dipole Moments - Joël Gogniat (University of Bern)  
11:20 Strategy to measure tau 𝑔 −2 via photon fusion in LHC proton collisions - Dr Savannah Clawson  
11:40
Plenary session - Michael Roney (until 12:20)
11:40 Limits on the tau anomalous magnetic moment in CMS - Eslam Shokr (University of Zurich (CH)))  
12:00 Tau-lepton pair production via di-photon fusion in ultra-peripheral heavy-ion collisions at the ATLAS detector - John Andrew Hallford (Deutsches Elektronen-Synchrotron (DE))  
09:00
Plenary session - Olivier Leroy (Aix Marseille Univ, CNRS/IN2P3, CPPM, Marseille, France) (until 10:40)
09:00 The role of tau in B-physics - Dr Nejc Košnik (J. Stefan Institute, University of Ljubljana)  
09:40 Recent results from LHCb on charged-current decays of b-hadrons - Patrizia De Simone (Istituto Nazionale Fisica Nucleare (IT))  
10:00 Semileptonic B-decays with tau from Belle II - Paul Feichtinger (Institut "Jožef Stefan")  
10:20 Search for b→sττ decays at the LHCb experiment - Hanae Tilquin (Imperial College (GB))  
10:40 --- Your beverage of choice break ---
11:00
Plenary session - Laurent Lellouch (CNRS and Aix-Marseille U.) (until 12:40)
11:00 Status of the MUonE experiment and preliminary results from the 2025 run - Riccardo Pilato (University of Liverpool (GB))  
11:20 Measurement of electromagnetic transition form factors in two-photon collisions at BESIII - Christoph Redmer  
11:40 Data-based evaluation of isospin-breaking to tau 2pi spectral functions for muon g-2 prediction - Dr Zhiqing ZHANG (IJClab-Orsay)  
12:00 Towards a dispersive calculation of isospin-breaking corrections for $\tau$ data - Martina Cottini (University of Bern)  
12:20 a_mu^{HVP,LO} using tau data - Gabriel Lopez Castro  
09:00
Plenary session - Laura Zani (until 10:40)
09:00 The Mu2e experiment - Léo Borrel (California Institute of Technology)  
09:20 Status of Mu3e experiment - Dr Marius Köppel (ETH Zurich)  
09:40 Constraints on Lorentz and CPT violation from muon-electron conversion - William McNulty (Indiana University)  
10:00 Update on the status of COMET experiment - Thomas CLOUVEL  
10:20 Results from MEG II - Lorenzo Ferrari Barusso (Università di Genova, INFN Genova)  
10:40 --- Your beverage of choice break ---
11:10
Plenary session - Juergen Brunner (CPPM) (until 12:50)
11:10 WavePID: Studies of DOM-level PMT timing towards track vs cascade discrimination in IceCube at 5-100 GeV - Steven Eulig (Harvard University and IceCube)  
11:30 Cross section uncertainties of $\nu_\tau$ interactions - David Jason Koskinen  
11:50 Status and prospects of the Hyper-Kamiokande Experiment - Helena Almazan (Donostia International Physics Center (DIPC) (ES))  
12:10 First detection of tau neutrinos with KM3NeT/ORCA6 - Nicole Geißelbrecht (ECAP)  
12:30 Results from the DsTau (NA65) Experiment - Dr Yuri Gornushkin  
09:00
Plenary session - Karim TRABELSI (TYL - KEK) (until 10:30)
09:00 Tau Physics at STCF - Mingyi Liu (University of Science and Technology of China)  
09:30 Estimated precision at FCC-ee on measurements of tau properties, lepton universality and searches for lepton flavour violation - Alberto Lusiani (Scuola Normale Superiore and INFN, sezione di Pisa)  
10:00 Chiral Belle Status: R&D on Upgrading SuperKEKB with Polarized Electron Beams - Prof. Michael Roney (University of Victoria)  
10:30 --- Your beverage of choice break ---
11:00
Plenary session (until 12:30)
11:00 Summary and prospects for tau leptons - Laura Zani  
11:40 Summary and prospects for neutrinos - Joao Coelho (CNRS / APC - Paris)  
12:20 Closing words - Justine Serrano (Aix Marseille Univ, CNRS/IN2P3, CPPM, Marseille, France)  
PM
12:50 --- Lunch ---
14:00
Plenary session - Vitalii Lisovskyi (EPFL (CH) and Aix Marseille Univ, CNRS/IN2P3, CPPM, Marseille (F)) (until 15:40)
14:00 Searches for New Physics and Tests of Lepton Flavor Universality with Taus at CMS - Marco Buonsante (Universita e INFN, Bari (IT))  
14:20 Searches for new phenomena in final states with taus using the ATLAS detector: using standard reconstruction and identification techniques - Minerva Maheshwari (University of Cambridge (GB))  
14:40 Recent advancements in the tau reconstruction and identification techniques in CMS - Andrea Cardini (Universidad de Oviedo)  
15:00 Searches for new phenomena in final states with taus using the ATLAS detector: using new advanced reconstruction and identification techniques - Adrian Salvador Salas 🥝 (Tel Aviv University (IL))  
15:20 Search for new resonances and di-Higgs production in channels involving taus - Marco Del Vecchio (Sapienza Universita e INFN, Roma I (IT))  
15:40 --- Your beverage of choice break ---
16:10
Plenary session - Emi Kou (until 17:50)
16:10 Search for lepton-flavour violating decay $\tau \to \mu \gamma$ at Belle II - Dr Marcela Garcia (KEK)  
16:30 Tau-philic light new physics at Belle-II - Gabriele Levati  
16:50 Searches for forbidden $\tau$ decays at Belle and Belle II - Arthur Thaller (INFN Roma3)  
17:10 New avenues for tau flavor violation - Julian Heeck  
18:00
Cocktail (until 20:00)
12:20 --- Lunch to be taken outside ---
14:00
Plenary session - Alberto Lusiani (Scuola Normale Superiore and INFN, sezione di Pisa) (until 16:00)
14:00 Update on alpha_s from hadronic tau decays, including the Belle $\tau \to \pi^-\pi^0\nu_\tau$ data - Lucas Morethes Mansur  
14:20 New understanding of the different strategies for extracting $\alpha_s$ from non-strange hadronic $\tau$ decay data - Kim Maltman (York University (Canada))  
14:40 QCD tests with inclusive tau decays - Prof. ANTONIO PICH (IFIC, University of Valencia - CSIC)  
15:20 Generalized structure functions in semileptonic tau decays - Pablo Roig Garcés  
15:40 The Cabibbo angle from inclusive $\tau$ decays - Giuseppe Gagliardi  
16:00 --- Your beverage of choice break ---
16:30
Plenary session - Emilie Passemar (until 17:10)
16:30 Observing true tauonium at colliders - David d'Enterria (CERN)  
16:50 Quantum state tomography with τ leptons - Luca Marzola (National Institute of Chemical Physics and Biophysics (EE))  
17:10
Plenary session - Emilie Passemar (until 17:55)
17:10 Dark sector searches in $\tau$ pairs at Belle - Johan Andrés Colorado Caicedo  
17:30 Constraining new scalar interactions with the rare $\tau \to \eta\pi\nu$ decay - Gabriel Lopez Castro  
12:40 --- Lunch ---
14:00
Social activities (until 18:00)
19:00
Social dinner (until 22:00)
12:50 --- Lunch ---
14:00
Plenary session - Giampiero Mancinelli (Aix Marseille Univ, CNRS/IN2P3, CPPM, Marseille, France) (until 14:20)
14:00 Flavour and precision probes of a class of scotogenic models - Adrian DARRICAU  
14:20
Plenary session - Giampiero Mancinelli (Aix Marseille Univ, CNRS/IN2P3, CPPM, Marseille, France) (until 15:20)
14:20 Looking forward to B+→τν and Bc→τν - Maria Domenica Galati (Van Swinderen Institute, University of Groningen)  
14:40 Searches for lepton-flavour violation in meson decays at Belle and Belle II - Dr Petar Rados  
15:00 Charged Lepton Flavour Violation searches at LHCb - Giulia Frau (The University of Manchester (GB))  
15:20 --- Group picture ---
15:30 --- Your beverage of choice break ---
16:00
Plenary session - Mathieu Perrin-Terrin (Aix Marseille Univ, CNRS/IN2P3, CPPM, Marseille, France) (until 17:45)
16:00 Observation of the $K^{+} \rightarrow \pi^{+}\nu\bar{\nu}$ decay and measurement of its branching ratio at NA62 - Paolo Massarotti (University Federico II and INFN, Naples (IT))  
16:20 Constraints on SU(2)_L-preserving NSI from τ decays - William McNulty  
16:40 DeepCore results on tau neutrino appearance and the corresponding potential of IceCube/Upgrade - David Jason Koskinen  
17:00 Astrophysical Tau Neutrinos in IceCube - Juliana Stachurska  
17:20 SND@LHC: First Measurements and Future Prospects - Daniele Centanni (INFN Sezione di Napoli (IT))  
18:00
Social activities - Giampiero Mancinelli (Aix Marseille Univ, CNRS/IN2P3, CPPM, Marseille, France) (until 20:00)
12:30 --- Lunch ---