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"X17 What if?" Workshop

→ Europe/Rome
Aula Salvini (LNF - Building 36)

Aula Salvini

LNF - Building 36

Via Enrico Fermi, 54 - 00044 Frascati (Roma)
Antonio De Santis (Istituto Nazionale di Fisica Nucleare), Elisa Di Meco (Istituto Nazionale di Fisica Nucleare), Fabio Bossi (Istituto Nazionale di Fisica Nucleare), Marco Mancini (Istituto Nazionale di Fisica Nucleare)
Description

The recent result published by the PADME Collaboration at LNF, has strengthened the interest in the searches for the hypothetical X17 particle, whose existence has been firstly suggested by nuclear physics experiments performed at ATOMKI.ย 


The aim of the Workshop is to provide a comprehensive review of the current experimental activities, and of the possible future developments in this field. Emphasis will be given to searches at particle's accelerators.

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ZOOM link for remote participation:

https://infn-it.zoom.us/j/84119745524?pwd=taEw29br7SUvzwEXaxOvGsb4XQ9wec.1

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  • Thursday 19 March
    • 09:30 → 10:00
      Registration Aula Salvini

      Aula Salvini

      LNF - Building 36

      Via Enrico Fermi, 54 - 00044 Frascati (Roma)

      Registration and coffee

    • 10:00 → 13:10
      Morning Session Aula Salvini

      Aula Salvini

      LNF - Building 36

      Via Enrico Fermi, 54 - 00044 Frascati (Roma)
      • 10:00
        Welcome 15m
        Speaker: Dr Paola Gianotti (LNF)
      • 10:15
        Theoretical overview 35m
        Speakers: Dr Claudio Toni (LAPTh, CNRS), Claudio Toni (Istituto Nazionale di Fisica Nucleare), Claudio Toni (Sapienza), Claudio Toni (LAPTh, CNRS)
        X17_frascati.pdf
      • 10:50
        News from ATOMKI 35m
        Speaker: Prof. Attila Krasznahorkay (Inst. of Nucl. Res. of the Hung. Acad. of Sci. (ATOMKI), Head, Division of Nuclear Physics)
        X17-Krasznahorkay-Frascati.pdf
      • 11:25
        The X17 Search at PADME: From Run III results to Run IV upgrades 35m
        Speaker: Mr Marco Mancini (Istituto Nazionale di Fisica Nucleare)
        X17WhatIf_PADME_MM.pdf
      • 12:00
        PADME future and perspects 35m
        Speaker: Paolo Valente (Istituto Nazionale di Fisica Nucleare)
        padme-what-if-valente-19mar2026.pdf
      • 12:35
        X17 searches at the BESIII 35m
        Speaker: Hang Zhou (Helmholtz Institute Mainz)
        X17_LNF_HZhou_v3.pdf
    • 13:10 → 14:30
      Break: Lunch Break Canteen (LNF)

      Canteen

      LNF
    • 14:30 → 16:15
      Afternoon Session Aula Salvini

      Aula Salvini

      LNF - Building 36

      Via Enrico Fermi, 54 - 00044 Frascati (Roma)
    • 16:15 → 16:45
      Break: Coffe Break Aula Salvini

      Aula Salvini

      LNF - Building 36

      Via Enrico Fermi, 54 - 00044 Frascati (Roma)
    • 16:45 → 18:30
      Afternoon Session Aula Salvini

      Aula Salvini

      LNF - Building 36

      Via Enrico Fermi, 54 - 00044 Frascati (Roma)
    • 18:30 → 20:00
      Event: Welcome Party Aula Salvini

      Aula Salvini

      LNF - Building 36

      Via Enrico Fermi, 54 - 00044 Frascati (Roma)
  • Friday 20 March
    • 09:30 → 11:15
      Morning Session Aula Salvini

      Aula Salvini

      LNF - Building 36

      Via Enrico Fermi, 54 - 00044 Frascati (Roma)
    • 11:15 → 11:45
      Break: Coffe Break Aula Salvini

      Aula Salvini

      LNF - Building 36

      Via Enrico Fermi, 54 - 00044 Frascati (Roma)
    • 11:45 → 13:20
      Morning Session Aula Salvini

      Aula Salvini

      LNF - Building 36

      Via Enrico Fermi, 54 - 00044 Frascati (Roma)
      • 11:45
        Searching for Light Dark Matter with the DarkMESA beam dump experiment 35m
        Speakers: Patrick Achenbach (Mainz University), Patrick Achenbach (Jefferson Lab), Patrick Achenbach (Nuclear Physics Institute, Gutenberg-University, Mainz)
        Achenbach-X17Workshop-Frascati-2026.pdf
      • 12:20
        Searching the X17 in the NA64 experiment at CERN 35m
        Speaker: Prof. Andrea Celentano (Istituto Nazionale di Fisica Nucleare)
        2026_03_20_X17LNF-2.pdf
      • 12:55
        Closing remarks 25m
        Speakers: Venelin Kozhuharov (Faculty od Physics, Sofia - Istituto Nazionale di Fisica Nucleare), Venelin Kozhuharov (Faculty of Physics, Sofia University "St. Kl. Ohridski" & LNF-INFN)
        2026-03-20-X17_WhatIf-3.pdf
    • 13:20 → 14:20
      Break: Lunch Break Aula Salvini

      Aula Salvini

      LNF - Building 36

      Via Enrico Fermi, 54 - 00044 Frascati (Roma)
    • 14:30 → 15:30
      Event: Visit to the Laboratory Aula Salvini

      Aula Salvini

      LNF - Building 36

      Via Enrico Fermi, 54 - 00044 Frascati (Roma)