FCC Rare Decays Working Group Meeting

Name: FCC Rare Decays Working Group Meeting
Start: 2026-02-09T16:00:00+01:00
End: 2026-02-09T18:00:00+01:00
Location: No location set

Monday 9 Feb 2026, 16:00 → 18:00 Europe/Zurich

Registration

Participants

Aidan Richard Wiederhold
Anja Beck
Armin Ilg
Ella Wood
Felipe Luan Souza De Almeida
Felix Erben
Guy Wilkinson
Jona Dilg
Marzia Bordone
Niharika Rout
Niladri Sahoo
Rafael Silva Coutinho
Renato Quagliani
Renato Quagliani
Reza Jafariseyedabad
Samarendra Nayak
Shibasis Roy
Tobias Monnard
Valeriia Lukashenko
Vasilisa Guliaeva
Wolfgang Altmannshofer

- 16:00 → 16:15
  
  Conveners introduction
  
  rareDecays_FCCee_intro.pdf
- 16:15 → 18:00
  Contributed talks
  - 16:15
    
    $B\to K^*\tau\tau$ with full simulation + vertex detector layout and sensor designs 10m
    
    Speakers: Armin Ilg (University of Zurich), Jona Dilg (University of Zurich (CH))
    
    2026-02-09_FCCee-Rare-Decays_JDilg-AIlg_BtoKStarTauTau.pdf
  - 16:30
    
    Polarized $L_b$ baryons and flavour benchmarks for tracker PID 10m
    
    Speakers: Anja Beck (Massachusetts Inst. of Technology (US)), Eluned Anne Smith (Massachusetts Inst. of Technology (US))
    
    2026_02_09_fcc-rd.pdf
  - 16:45
    
    Measuring polarized $\Lambda_b\to\Lambda\nu\bar\nu$ observables 10m
    
    Speakers: Mr Shibasis Roy, Wolfgang Altmannshofer (UC Santa Cruz)
    
    FCC_Roy_LBtoLnunu.pdf
  - 17:00
    
    Feasibility/sensitivity of a sum-of-exclusive analysis of $b\to s\ell\ell$ transitions at FCC-ee 10m
    
    Speakers: Elena Graverini (University of Pisa (IT) and EPFL - Ecole Polytechnique Federale Lausanne (CH)), Felipe Luan Souza De Almeida (University of Barcelona (ES)), Rafael Silva Coutinho (CBPF - Brazilian Center for Physics Research (BR))
    
    Slides.pdf
  - 17:15
    
    $B_s\to\tau\tau$ 10m
    
    Speakers: Tobias Alexandre Monnard (EPFL - Ecole Polytechnique Federale Lausanne (CH)), Xunwu Zuo (EPFL - Ecole Polytechnique Federale Lausanne (CH))
    
    26_02_09_Bs2TauTau.pdf
    
    26_02_09_Bs2TauTau.pptx
  - 17:30
    
    $B\to\ell\bar\nu$ 10m
    
    Speakers: Vasilisa Guliaeva (EPFL - Ecole Polytechnique Federale Lausanne (CH)), Xunwu Zuo (EPFL - Ecole Polytechnique Federale Lausanne (CH))
    
    VG_BcButolepton_FCCRareDecayWG.pdf
  - 17:45
    
    Measuring the photon polarisation with $\Lambda_b$ decays 10m
    
    Speakers: Marie-Helene Schune (Université Paris-Saclay (FR)), Marzia Bordone (University of Zürich and CERN), Renato Quagliani (CERN)
    
    FCC_EE_PhotonPol_LbLgamma (4).pdf