Anomalies and Precision in the Belle II Era - Workshop

Name: Anomalies and Precision in the Belle II Era - Workshop
Start: 2025-09-08T09:00:00+02:00
End: 2025-09-10T22:00:00+02:00
Location: No location set

8 Sept 2025, 09:00 → 10 Sept 2025, 22:00 Europe/Vienna

Claudia Cornella, Gianluca Inguglia, Michel Bertemes (Austrian Academy of Sciences (AT))

Description

In recent years experiments worldwide have reported several tensions arising from anomalies observed in the decays of B mesons and in properties of leptons. Over the years, some of these anomalies have been better understood by refined experimental analyses or by improved theoretical calculations, while new anomalies have emerged.

This workshop, at its second edition, will bring together theorists and experimentalists to discuss ongoing and planned precision measurements (at Belle II and elsewhere) and theoretical developments that might suggest new or better observables accessible or exclusive for the Belle II experiment. The aim is to assess the status of anomalies in flavour measurments and their interplay across different topics (for example, but not limited to B-meson decays, precision studies of lepton properties, or dark sector searches). If a pattern is emerging, suggesting some favored new physics scenarios as explanations of the anomalies, it is essential that "no stones are left unturned" to confirm it or rule it out.

The event will take place in-person and limited to ~40 participants in the Vienna area.
A previous edition of this workshop that took place in 2021 can be found here.

Participation in the workshop is exclusively by invitation. Interested people can however apply and request to participate.
The registration is currently open and will be closed on September 1st.

Organizers
Gianluca Inguglia (chair), MBI-Vienna
Claudia Cornella (co-chair), CERN
Michel Bertemes, MBI-Vienna (co-chair)
Brigitte De Monte (Secretary), MBI-Vienna
Christoph Schwanda, MBI-Vienna
Rajesh Kumar Maiti, MBI-Vienna
Alexander Glazov, DESY

Registration

Registration form

Participants

38 View full list

Monday 8 September
- 09:30 → 10:00
  
  Registration
- 10:00 → 11:00
  Monday 1
  - 10:00
    
    Welcome by the organizers 10m
    
    Speaker: gianluca inguglia
  - 10:10
    
    Belle II status and prospects (40+10) 50m
    
    Speaker: Soeren Andre Prell (Iowa State University (US))
    
    Prell-Anomalies2025.pdf
- 11:00 → 11:30
  
  Break
- 11:30 → 13:00
  Monday 2
  - 11:30
    
    Status of flavour as of 2025: “BSM” (35+10) 45m
    
    Speaker: David Marzocca (INFN Trieste)
    
    Flavor_BSM.pdf
  - 12:15
    
    Status of flavour as of 2025: “SM” (35+10) 45m
    
    Speaker: Martin Gorbahn (Liverpool University)
    
    belle2_gorbahn.pdf
- 13:00 → 14:30
  
  Lunch
- 14:30 → 16:00
  Monday 3
  - 14:30
    
    B->K(*)nunu at Belle II (20+10) 30m
    
    Speaker: Corentin Santos (IPHC - Strasbourg)
    
    main.pdf
  - 15:00
    
    B+->K+nunu at Belle (20+10) 30m
    
    Speaker: Nadiia Maslova
    
    2_nadiia.pdf
  - 15:30
    
    Impact of new invisible particles on B->K(*)E (20+10) 30m
    
    Speaker: Patrick Bolton (Jožef Stefan Institute)
    
    invisible_belleii_pbolton.pdf
- 16:00 → 16:30
  
  Break
- 16:30 → 18:00
  Monday 4
  - 16:30
    
    K-> pi nu nu at NA62 and KOTO (20+10) 30m
    
    Speaker: RIccardo Fantechi
  - 17:00
    
    NP interpretation of B->K nu nu and K-> pi nu nu data (20+10) 30m
    
    Speaker: Lukas Allwicher
    
    allwicher_mauerbach.pdf
  - 17:30
    
    Opportunities in c->ununu transitions (20+10) 30m
    
    Speaker: Dominik Suelmann
    
    presentation_Belle2_DSuelmann-v1.pdf
- 20:00 → 21:00
  
  Dinner 1h
- 21:00 → 23:00
  
  Welcome reception 2h
Tuesday 9 September
- 09:00 → 11:00
  Tuesday 1
  - 09:30
    
    CPV in c transitions @hadron colliders and Belle II (40+15) 55m
    
    Speakers: Irene Celestino, Sanjeeda Bharati Das
    
    anomalies_sanjeeda.pptx_v3.pdf
    
    CPVc_Anomalies_Celestino.pdf
  - 10:25
    
    News on D mixing from the lattice (25 + 10) 35m
    
    Speaker: Matteo Di Carlo (CERN)
    
    Dmixing_wien_mdc.pdf
- 11:00 → 11:30
  
  Break
- 11:30 → 13:00
  Tuesday 2
  - 11:30
    
    CPV in b transitions @hadron colliders and Belle II (40+15) 55m
    
    Speakers: Ozlem Ozcelik (The University of Edinburgh (GB)), Sagar Hazra
    
    OzlemAnomalies.pdf
    
    Viena_talk_Sagar_Hazra.pdf
  - 12:25
    
    Status of CKM elements (UTfit) (25+10) 35m
    
    Speaker: Ludovico VITTORIO (Sapienza Università di Roma and INFN, Sezione di Roma)
- 13:00 → 14:00
  
  Lunch
- 14:00 → 16:00
  Tuesday 3
  - 14:00
    
    Theory challenges in CKM determination (30+10) 40m
    
    Speaker: Matteo Fael
    
    Mauerbach2025.pdf
  - 14:40
    
    |Vcb| and |Vub| at Belle II: Moments from B → D, D* and D** l v (30+10) 40m
    
    Speaker: Munira Khan
    
    vcb_vub_wien_final.pdf
  - 15:20
    
    Status of the R(D)-R(D*) anomaly (30+10) 40m
    
    Speaker: Philipp Horak (University of Victoria)
    
    20250909_mauerbach_rdrdstar.pdf
- 16:00 → 16:30
  
  Break
- 16:30 → 20:00
  
  Free slot for discussion 3h 30m
- 20:00 → 21:00
  
  Dinner 1h
- 21:00 → 22:00
  
  Round table 1h
Wednesday 10 September
- 09:30 → 11:00
  Wednesday 1
  - 09:30
    
    Connecting New Physics at low and high energies (40+10) 50m
    
    Speaker: Wolfgang Altmannshofer
    
    altmannshofer_Vienna.pdf
  - 10:20
    
    Theory aspects of bsll transitions (30+10) 40m
    
    Speaker: Arianna Tinari
    
    belleII_tinari.pdf
- 11:00 → 11:30
  
  Break
- 11:30 → 13:00
  Wednesday 2
  - 11:30
    
    b-> sll at hadron colliders (20+10) 30m
    
    Speaker: Zekun Jia (Centre National de la Recherche Scientifique (FR))
    
    b2sll_v1.pdf
  - 12:00
    
    Rare B decays at Belle (II) (20+10) 30m
    
    Speaker: Ihor Prudiiev
  - 12:30
    
    Quarkonium at Belle II (20+10) 30m
    
    Speaker: Umberto Tamponi (INFN Torino (IT))
    
    tamponi_anomalies_vienna_2025.pdf
- 13:00 → 14:30
  
  Lunch
- 14:30 → 16:00
  Wednesday 3
  - 14:30
    
    Overview of tau physics at Belle II (40+10) 50m
    
    Speaker: Zuzana Gruberova
    
    ZMG_anomalies_tau.pdf
  - 15:20
    
    Quantum tests with tau leptons (30+10) 40m
    
    Speaker: Luca Marzola
- 16:00 → 16:30
  
  Break
- 16:30 → 18:00
  Wednesday 4
  - 16:30
    
    Interplay of Belle II and future Tera-Z factories in B and tau physics (40+10) 50m
    
    Speakers: Luiz Vale Silva, Xunwu Zuo
    
    flavor physics at future Tera-Z factories 2025.09.10.pdf
    
    Vale_Silva.pdf
  - 17:20
    
    Overview of Dark sector searches at Belle II and other e+e- colliders (30+10) 40m
    
    Speaker: Luigi Corona
    
    Corona-Anomalies2025_DS.pdf
- 20:00 → 21:00
  
  Dinner 1h
- 21:00 → 22:00
  
  Round table 1h

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Anomalies and Precision in the Belle II Era - Workshop