Lepton flavour change in nuclei

Name: Lepton flavour change in nuclei
Start: 2025-04-14T08:30:00+02:00
End: 2025-04-18T19:00:00+02:00
Location: ECT*

14 Apr 2025, 08:30 → 18 Apr 2025, 19:00 Europe/Rome

Aula Renzo Leonardi (ECT*)

Aula Renzo Leonardi

ECT*

Strada delle Tabarelle 286, I-38123 Villazzano (Trento)

Karim Bennaceur (Université Claude Bernard Lyon 1, IP2I), Sacha Davidson (IN2P3, CNRS)

Description

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Lepton flavour change is observed in neutrino oscillations, but not yet in contact interactions among charged leptons – despite decades of active searching and a plethora of models. However, this could change soon, as a huge leap in experimental reach is promised by upcoming searches for μ → e conversion in nuclei.
The workshop aims to bring together lepton, χPT/nucleon and nuclear theorists, in order to improve the multi-scale theoretical
rate calculations, using state of the art mean-field or shell-model approaches, to the accuracy required by upcoming experiments. Also, in collaboration with experimentalists, we aim to explore feasible and complementary nuclear targets that could best identify the lepton flavour changing interactions.

Contact

inecampo@ectstar.eu

Participants

18 View full list

Monday 14 April
- 08:30 → 08:45
  
  Registration 15m Aula Renzo Leonardi
  
  Aula Renzo Leonardi
  
  ECT*
  
  Strada delle Tabarelle 286, I-38123 Villazzano (Trento)
- 08:45 → 09:00
  
  Welcome by the ECT* Director 15m Aula Renzo Leonardi
  
  Aula Renzo Leonardi
  
  ECT*
  
  Strada delle Tabarelle 286, I-38123 Villazzano (Trento)
- 09:00 → 10:15
  
  Introduction to muon -> electron conversion 1h 15m
  
  Speaker: Yoshitaka KUNO (Osaka University)
  
  ECT2025KUNO-2.pdf
- 10:15 → 10:30
  
  Discussion and Questions 15m Aula Renzo Leonardi
  
  Aula Renzo Leonardi
  
  ECT*
  
  Strada delle Tabarelle 286, I-38123 Villazzano (Trento)
- 10:30 → 11:00
  
  coffee 30m Aula Renzo Leonardi
  
  Aula Renzo Leonardi
  
  ECT*
  
  Strada delle Tabarelle 286, I-38123 Villazzano (Trento)
- 11:00 → 11:45
  
  Density Functional Methods in Nuclear Physics 45m Aula Renzo Leonardi
  
  Aula Renzo Leonardi
  
  ECT*
  
  Strada delle Tabarelle 286, I-38123 Villazzano (Trento)
  
  Speaker: Jacek Dobaczewski (University of York)
  
  27Al.Dobaczewski.Trento2025.250414-09b.ppt
  
  Dobaczewski.Trento2025.250414-09.pdf
  
  Dobaczewski.Trento2025.250414-09.ppt
- 11:45 → 12:00
  
  Discussion+Questions 15m Aula Renzo Leonardi
  
  Aula Renzo Leonardi
  
  ECT*
  
  Strada delle Tabarelle 286, I-38123 Villazzano (Trento)
- 12:00 → 12:20
  
  tbc (?Self-consistent muon+nucleon wavefunctions) 20m Aula Renzo Leonardi
  
  Aula Renzo Leonardi
  
  ECT*
  
  Strada delle Tabarelle 286, I-38123 Villazzano (Trento)
  
  Speaker: Jacek Dobaczewski (University of York)
- 12:20 → 12:30
  
  Discussion and Questions 10m Aula Renzo Leonardi
  
  Aula Renzo Leonardi
  
  ECT*
  
  Strada delle Tabarelle 286, I-38123 Villazzano (Trento)
- 12:30 → 14:00
  
  lunch 1h 30m Aula Renzo Leonardi
  
  Aula Renzo Leonardi
  
  ECT*
  
  Strada delle Tabarelle 286, I-38123 Villazzano (Trento)
- 14:00 → 14:45
  
  The effect of quadrupole deformation 45m Aula Renzo Leonardi
  
  Aula Renzo Leonardi
  
  ECT*
  
  Strada delle Tabarelle 286, I-38123 Villazzano (Trento)
  
  Speaker: Andrzej Czarnecki (University of Alberta)
- 14:45 → 15:00
  
  Discussion and Questions 15m Aula Renzo Leonardi
  
  Aula Renzo Leonardi
  
  ECT*
  
  Strada delle Tabarelle 286, I-38123 Villazzano (Trento)
- 15:00 → 15:45
  
  mu^- to e^+ in nuclei 45m Aula Renzo Leonardi
  
  Aula Renzo Leonardi
  
  ECT*
  
  Strada delle Tabarelle 286, I-38123 Villazzano (Trento)
  
  Speaker: Joe Sato
  
  LNV ECT.pptx
- 15:45 → 16:00
  
  Discussion and Questions 15m Aula Renzo Leonardi
  
  Aula Renzo Leonardi
  
  ECT*
  
  Strada delle Tabarelle 286, I-38123 Villazzano (Trento)
- 16:00 → 16:30
  
  coffee 30m Aula Renzo Leonardi
  
  Aula Renzo Leonardi
  
  ECT*
  
  Strada delle Tabarelle 286, I-38123 Villazzano (Trento)
- 16:30 → 17:15
  
  Search for mu->e conversion with COMET at J-PARC 45m Aula Renzo Leonardi
  
  Aula Renzo Leonardi
  
  ECT*
  
  Strada delle Tabarelle 286, I-38123 Villazzano (Trento)
  
  Speaker: Cristina Carloganu
  
  250414-ECT.pdf
- 17:15 → 17:30
  
  Discussion and Questions 15m Aula Renzo Leonardi
  
  Aula Renzo Leonardi
  
  ECT*
  
  Strada delle Tabarelle 286, I-38123 Villazzano (Trento)
Tuesday 15 April
- 09:00 → 09:45
  
  Introduction to chiPT 45m Aula Renzo Leonardi
  
  Aula Renzo Leonardi
  
  ECT*
  
  Strada delle Tabarelle 286, I-38123 Villazzano (Trento)
  
  Speaker: Vincenzo Cirigliano (Institute for Nuclear Theory, University of Washington)
  
  intro-chpt.pdf
- 09:45 → 10:00
  
  Discussion and Questions 15m Aula Renzo Leonardi
  
  Aula Renzo Leonardi
  
  ECT*
  
  Strada delle Tabarelle 286, I-38123 Villazzano (Trento)
- 10:00 → 10:20
  
  tbc 20m Aula Renzo Leonardi
  
  Aula Renzo Leonardi
  
  ECT*
  
  Strada delle Tabarelle 286, I-38123 Villazzano (Trento)
  
  Speaker: Vincenzo Cirigliano (Institute for Nuclear Theory, University of Washington)
  
  ECT*-LFV.pdf
- 10:20 → 10:30
  
  Discussion and Questions 10m Aula Renzo Leonardi
  
  Aula Renzo Leonardi
  
  ECT*
  
  Strada delle Tabarelle 286, I-38123 Villazzano (Trento)
- 10:30 → 11:00
  
  coffee 30m Aula Renzo Leonardi
  
  Aula Renzo Leonardi
  
  ECT*
  
  Strada delle Tabarelle 286, I-38123 Villazzano (Trento)
- 11:00 → 11:45
  
  Introduction to Nuclear Effective Theory 45m Aula Renzo Leonardi
  
  Aula Renzo Leonardi
  
  ECT*
  
  Strada delle Tabarelle 286, I-38123 Villazzano (Trento)
  
  Speaker: Ubirajara van Kolck (IJCLab Orsay & University of Arizona)
- 11:45 → 12:00
  
  Discussion and Questions 15m Aula Renzo Leonardi
  
  Aula Renzo Leonardi
  
  ECT*
  
  Strada delle Tabarelle 286, I-38123 Villazzano (Trento)
- 12:00 → 12:20
  
  Lepton Number Violation in Nuclear Effective Theory 20m Aula Renzo Leonardi
  
  Aula Renzo Leonardi
  
  ECT*
  
  Strada delle Tabarelle 286, I-38123 Villazzano (Trento)
  
  Speaker: Ubirajara van Kolck (IJCLab Orsay & University of Arizona)
- 12:20 → 12:30
  
  Discussion and Questions 10m Aula Renzo Leonardi
  
  Aula Renzo Leonardi
  
  ECT*
  
  Strada delle Tabarelle 286, I-38123 Villazzano (Trento)
- 12:30 → 13:45
  
  lunch 1h 15m Aula Renzo Leonardi
  
  Aula Renzo Leonardi
  
  ECT*
  
  Strada delle Tabarelle 286, I-38123 Villazzano (Trento)
- 13:45 → 14:15
  
  What are we trying to calculate? 30m
  
  Speaker: Everyone
  
  Trento1.pdf
- 14:15 → 15:00
  
  Calculations of various muon decays in orbit 45m Aula Renzo Leonardi
  
  Aula Renzo Leonardi
  
  ECT*
  
  Strada delle Tabarelle 286, I-38123 Villazzano (Trento)
  
  Speaker: Yuichi Uesaka
  
  uesaka_20250415.pdf
- 15:00 → 15:15
  
  Discussion and Questions 15m Aula Renzo Leonardi
  
  Aula Renzo Leonardi
  
  ECT*
  
  Strada delle Tabarelle 286, I-38123 Villazzano (Trento)
- 15:15 → 15:35
  
  quick coffee 20m Aula Renzo Leonardi
  
  Aula Renzo Leonardi
  
  ECT*
  
  Strada delle Tabarelle 286, I-38123 Villazzano (Trento)
- 15:35 → 16:05
  
  blackboard discussion: do muons think deformed nuclei are spherically symmetric? 30m Aula Renzo Leonardi
  
  Aula Renzo Leonardi
  
  ECT*
  
  Strada delle Tabarelle 286, I-38123 Villazzano (Trento)
- 16:05 → 16:50
  
  mu-> e and g-2 in the context of vector-like leptons 45m Aula Renzo Leonardi
  
  Aula Renzo Leonardi
  
  ECT*
  
  Strada delle Tabarelle 286, I-38123 Villazzano (Trento)
  
  Speaker: Kilian Möhling (TU Dresden)
  
  CLFV25-moehling.pdf
- 16:50 → 17:05
  
  Discussion and Questions 15m Aula Renzo Leonardi
  
  Aula Renzo Leonardi
  
  ECT*
  
  Strada delle Tabarelle 286, I-38123 Villazzano (Trento)
Wednesday 16 April
- 09:00 → 10:15
  
  Ab initio methods for finite nuclei: an overview 1h 15m Aula Renzo Leonardi
  
  Aula Renzo Leonardi
  
  ECT*
  
  Strada delle Tabarelle 286, I-38123 Villazzano (Trento)
  
  Speaker: Pierre Arthuis (IJCLab Orsay, CNRS & U. Paris-Saclay, France)
  
  Arthuis_Trento_Leptons_2025.pdf
- 10:15 → 10:30
  
  Discussion and Questions 15m Aula Renzo Leonardi
  
  Aula Renzo Leonardi
  
  ECT*
  
  Strada delle Tabarelle 286, I-38123 Villazzano (Trento)
- 10:30 → 11:00
  
  coffee 30m Aula Renzo Leonardi
  
  Aula Renzo Leonardi
  
  ECT*
  
  Strada delle Tabarelle 286, I-38123 Villazzano (Trento)
- 11:00 → 12:10
  
  Iterative linear response methods for atomic nuclei 1h 10m Aula Renzo Leonardi
  
  Aula Renzo Leonardi
  
  ECT*
  
  Strada delle Tabarelle 286, I-38123 Villazzano (Trento)
  
  Speaker: Markus Kortelainen (University of Jyväskylä)
  
  kortelainen.pdf
- 12:10 → 12:30
  
  Discussion and Questions 20m Aula Renzo Leonardi
  
  Aula Renzo Leonardi
  
  ECT*
  
  Strada delle Tabarelle 286, I-38123 Villazzano (Trento)
- 12:30 → 14:00
  
  lunch 1h 30m Aula Renzo Leonardi
  
  Aula Renzo Leonardi
  
  ECT*
  
  Strada delle Tabarelle 286, I-38123 Villazzano (Trento)
- 14:00 → 14:45
  
  Ab initio nuclear responses for mu-> e conversion 45m Aula Renzo Leonardi
  
  Aula Renzo Leonardi
  
  ECT*
  
  Strada delle Tabarelle 286, I-38123 Villazzano (Trento)
  
  Speaker: Matthias Heinz (Oak Ridge National Laboratory)
  
  2025.04.16_ECTstar.pdf
- 14:45 → 15:00
  
  Discussion and Questions 15m Aula Renzo Leonardi
  
  Aula Renzo Leonardi
  
  ECT*
  
  Strada delle Tabarelle 286, I-38123 Villazzano (Trento)
- 15:00 → 15:45
  
  Uncertainty quantification of overlap integrals in $\mu\to e$ conversion 45m Aula Renzo Leonardi
  
  Aula Renzo Leonardi
  
  ECT*
  
  Strada delle Tabarelle 286, I-38123 Villazzano (Trento)
  
  Speaker: Frederic Noël (ITP, AEC, Uni Bern)
  
  Presentation_Trento2025_Noel.pdf
- 15:45 → 16:00
  
  Discussion and Questions 15m Aula Renzo Leonardi
  
  Aula Renzo Leonardi
  
  ECT*
  
  Strada delle Tabarelle 286, I-38123 Villazzano (Trento)
- 16:00 → 16:45
  
  coffee 45m Aula Renzo Leonardi
  
  Aula Renzo Leonardi
  
  ECT*
  
  Strada delle Tabarelle 286, I-38123 Villazzano (Trento)
- 16:45 → 17:30
  
  Tbc about 2 Higgs Doublet Models 45m Aula Renzo Leonardi
  
  Aula Renzo Leonardi
  
  ECT*
  
  Strada delle Tabarelle 286, I-38123 Villazzano (Trento)
  
  Speaker: Andreas Crivellin (UZH & PSI)
- 17:30 → 17:45
  
  Discussion and Questions 15m Aula Renzo Leonardi
  
  Aula Renzo Leonardi
  
  ECT*
  
  Strada delle Tabarelle 286, I-38123 Villazzano (Trento)
- 18:00 → 18:20
  
  Conference Dinner Later Tonight 20m Aula Renzo Leonardi
  
  Aula Renzo Leonardi
  
  ECT*
  
  Strada delle Tabarelle 286, I-38123 Villazzano (Trento)
Thursday 17 April
- 09:00 → 09:45
  
  Muon capture helping New Physics studies 45m Aula Renzo Leonardi
  
  Aula Renzo Leonardi
  
  ECT*
  
  Strada delle Tabarelle 286, I-38123 Villazzano (Trento)
  
  Speaker: Lotta Jokiniemi (TRIUMF / TU Darmstadt)
  
  ECTstar_April2025_Jokiniemi.pdf
- 09:45 → 10:00
  
  Discussion and Questions 15m Aula Renzo Leonardi
  
  Aula Renzo Leonardi
  
  ECT*
  
  Strada delle Tabarelle 286, I-38123 Villazzano (Trento)
- 10:00 → 10:25
  
  coffee 25m Aula Renzo Leonardi
  
  Aula Renzo Leonardi
  
  ECT*
  
  Strada delle Tabarelle 286, I-38123 Villazzano (Trento)
- 10:25 → 10:50
  
  Flavour Observables in FlexibleSUSY 25m Aula Renzo Leonardi
  
  Aula Renzo Leonardi
  
  ECT*
  
  Strada delle Tabarelle 286, I-38123 Villazzano (Trento)
  
  Speaker: Dominik Stoeckinger (TU Dresden)
  
  2025AprilLFVWorkshop.pdf
- 10:50 → 11:00
  
  Discussion and Questions 10m Aula Renzo Leonardi
  
  Aula Renzo Leonardi
  
  ECT*
  
  Strada delle Tabarelle 286, I-38123 Villazzano (Trento)
- 11:00 → 11:30
  
  Charge distributions in nuclei from mean field calculations 30m Aula Renzo Leonardi
  
  Aula Renzo Leonardi
  
  ECT*
  
  Strada delle Tabarelle 286, I-38123 Villazzano (Trento)
  
  Speaker: Karim Bennaceur (Université Claude Bernard Lyon 1, IP2I)
  
  presentation.pdf
- 11:30 → 11:40
  
  Discussion and Questions 10m Aula Renzo Leonardi
  
  Aula Renzo Leonardi
  
  ECT*
  
  Strada delle Tabarelle 286, I-38123 Villazzano (Trento)
- 11:40 → 12:00
  
  Conclusion and Perspectives 20m Aula Renzo Leonardi
  
  Aula Renzo Leonardi
  
  ECT*
  
  Strada delle Tabarelle 286, I-38123 Villazzano (Trento)
  
  Speaker: Sacha Davidson and Karim Bennaceur
  
  Trento2.pdf