Open Symposium on the European Strategy for Particle Physics

23 Jun 2025, 08:00 → 27 Jun 2025, 18:00 Europe/Rome

Palazzo del Casinò (Venice Lido)

Sandra Malvezzi (Istituto Nazionale di Fisica Nucleare)

The European Strategy for Particle Physics (ESPP) is the cornerstone of Europe’s decision-making process for the long-term future of the field. Mandated by the CERN Council, it is formed through a broad consultation of the particle physics community and the study of selected projects. The focus of the ESPP 2026 Update is to identify the next flagship project at CERN to succeed the Large Hadron Collider and its high-luminosity upgrade.

Updating the ESPP is a process that takes place every 5-7 years and requires several months of work by the scientific community. The final output of this process is a document presenting the studies carried out and the recommendations expressed. The final processing of this document is preceded by an important moment of sharing and discussion: the Open Symposium of the scientific community.

The next edition of the Open Symposium will be hosted in Italy, at Lido di Venezia, from 23—27 June 2025. It will see scientists and partners from around the world debate the inputs to the ESPP and discuss the goals to be achieved in the coming decades.

The Open Symposium of the ESSP 2026 Update is hosted and organized by the Italian National Institute for Nuclear Physics (INFN), with the support of CERN.

 

                                                               UNDER THE PATRONAGE OF:

Monday, 23 June ¶

Registration¶

Opening Session¶

1 Official Opening¶

2 Implementation of the last Strategy¶

Speaker: Fabiola Gianotti (CERN) (CERN)

3 Outstanding questions in particle physics¶

Speaker: Eric Laenen (Nikhef) (Nikhef/UvAe)

10:45 Coffee-Break

Parallel 1 - Electroweak Physics¶

4 Talk 1¶

Speaker: aaa

5 talk 2¶

Speaker: bbb

6 Discussion¶

Parallel 2 - Accelerator Technologies¶

Parallel 3 - Neutrinos and Cosmic Messengers¶

Parallel 4 - Strong Interactions¶

Parallel 5 – Flavor¶

13:00 Lunch Break

Parallel 1 - Electroweak Physics (part II)¶

Parallel 2 - Accelerator Technologies (part II)¶

Parallel 3 - Neutrinos and Cosmic Messengers (part II)¶

Parallel 4- Strong Interactions (part II)¶

Parallel 5 – Flavor (part II)¶

15:30 Short Break to allow for change rooms

Parallel 6 -Detector Technologies¶

Parallel 7 – BSM¶

Parallel 8 - Dark matter/Dark Sector¶

Parallel 9 -Computing¶

17:00 Coffee-Break

Parallel 6 -Detector Technologies¶

Parallel 7 – BSM¶

Parallel 8 - Dark matter/Dark Sector¶

Parallel 9 -Computing¶

20:00 Welcome Cocktail

Tuesday, 24 June ¶

Large-scale accelerator projects at CERN, part I¶

10:45 Coffee-Break

Large-scale accelerator projects at CERN, part II¶

13:00 Lunch Break

Status in China, Japan, US¶

7 Status and plans for the realisation of the Circular Electron Positron Collider (CEPC) and other large-scale projects in China¶

Speaker: Yifang Wang (IHEP Beijing) (IHEP)

8 Status and plans for the realisation of the International Linear Collider (ILC) and other large-scale projects in Japan¶

Speaker: Shoji Asai (KEK) (U-Tokyo)

9 Large-scale particle physics projects in the US and plans for participation in projects outside¶

Speaker: Hitoshi Murayama (Berkeley) (UC Berkeley, LBNL, Kavli IPMU Tokyo)

16:15 Coffee-Break

Accelerator Technologies¶

Status of critical item, R&D needs timeline, required resources

Convener: Tor Raubenheimer (SLAC)

10 Conceptual challenges of collider proposals¶

Speaker: Gianluigi Arduini (CERN) (CERN)

11 The technology challenges¶

Speaker: Philip Burrows (Oxford University) (John Adams Institute, Oxford University)

12 Non-collider high intensity concepts¶

Speaker: to be defined

13 Discussion¶

Tor Raubenheimer (discussion leader)

Speaker: Tor Raubenheimer (SLAC) - discussion leader (SLAC)

Wednesday, 25 June ¶

Electroweak Physics¶

Talks (i), (ii) Discussion

14 The Electroweak/Higgs physics landscape beyond the LHC: Open questions and exploration at future colliders¶

Speaker: Monica Dunford (University of Heidelberg) (Heidelberg University)

15 Characterisation of the Electroweak/Higgs sectors at future colliders: Comparative assessment¶

Speaker: Jorge de Blas (University of Granada) (University of Granada)

16 Discussion¶

Florencia Canelli (discussion leader)

Speaker: Florencia Canelli (University of Zurich) - discussion leader (University of Zurich)

10:45 Coffee-Break

Strong Interactions¶

Talks (i), (ii) Discussion

17 Open questions and experimental prospects: precision QCD & internal structure of protons and nuclei¶

Speaker: Cristinel Diaconu (CPPM & IN2P3) (DESY)

18 Open questions and experimental prospects: hot and dense QCD & QCD connections to hadronic, nuclear and astrophysics¶

Speaker: Andrea Dainese (INFN-Padua) (Istituto Nazionale di Fisica Nucleare)

19 Discussion¶

Sven-Olaf Moch (discussion leader)

Speaker: Sven-Olaf Moch (University of Hamburg) - discussion leader (Universität Hamburg)

13:00 Lunch Break

Flavour physics¶

Talks (i), (ii) Discussion

20 Status and open questions in flavour physics¶

Speaker: Gino Isidori (University of Zurich)

21 Experimental programs to address open issues in flavour physics¶

Speaker: Marie-Helene Schune (IJCLab Paris) (IJCLab CNRS/Université Paris-Saclay (FR))

22 Discussion¶

Tim Gershon (discussion leader)

Speaker: Tim Gershon (University of Warwick) - discussion leader (University of Warwick)

16:15 Coffee-Break

Neutrinos and Cosmic Messengers¶

Talks (i), (ii) Discussion

23 Open questions in neutrino physics and related BSM¶

Speaker: Pilar Hernández (University of Valencia) (University of Valencia)

24 Measurements of neutrino properties in the SM and beyond¶

Speaker: Sara Bolognesi (CEA Saclay) (CEA Saclay)

25 Cosmic Messengers for particle physics¶

26 Discussion¶

Speaker: Mauro Mezzetto (INFN-Padua) - discussion leader (INFN-PD)

20:00 Social Dinner

Thursday, 26 June ¶

BSM physics¶

Talks (i), (ii) Discussion

27 Status and open questions in the search for Physics Beyond the Standard Model¶

Speaker: Fabio Maltoni (Louvain, Bologna) (Università di Bologna)

28 Experimental programs to address open issues in BSM physics¶

Speaker: Rebeca Gonzalez Suarez (Uppsala University) (Uppsala University (SE))

29 Discussion¶

Maurizio Pierini (discussion leader)

Speaker: Maurizio Pierini (CERN) - discussion leader (CERN)

10:45 Coffee-Break

Dark Matter / dark sector¶

Talks (i), (ii) Discussion

30 Status and open questions in dark matter and dark sector physics¶

Speaker: Matthew McCullough (CERN) (CERN)

31 Experimental programs to address open issues in dark matter and dark sector physics¶

Speaker: Jocelyn Monroe (University of Oxford) (University of Oxford)

32 Discussion¶

Caterina Doglinoni (discussion leader)

Speaker: Caterina Doglioni (University of Manchester) - discussion leader (University of Manchester)

13:00 Lunch Beak

Detector Technologies¶

status of DRDs, R&D needs, timeline, required resources

33 Tools for Discovery – Instrumentation Requirements for Future Projects¶

Speaker: Ulrich Husemann - KIT Karlsruhe (Karlsruhe Institute of Technology)

34 From ECFA Detector Roadmap to DRD Collaborations and beyond¶

Speaker: Thomas Bergauer (HEPHY Vienna) (HEPHY Vienna)

35 Discussion¶

Daniela Bortoletto (discussion leader)

Speaker: Daniela Bortoletto (University of Oxford) -discussion leader (University of Oxford)

16:15 Coffee-Break

Computing¶

Status of critical item, R&D needs timeline, required resources

Convener: Stephane Jezequel (LAPP Annecy)

36 Computing in HEP: how we got here and needs for the next decade¶

Speaker: Tommaso Boccali (INFN-Pisa) (Istituto Nazionale di Fisica Nucleare)

37 HEP Computing needs and ideas for the next generation initiatives¶

Speaker: Borut Kersevan (JSI Ljubljana) (JSI Ljubljana)

38 Discussion¶

Speaker: Stephane Jezequel (LAPP Annecy) - discussion leader (LAPP Annecy)

Friday, 27 June ¶

Overarching topics (by ESG working groups)¶

(by ESG Working groups)
e.g. National input and others

10:45 Coffee-Break

Overarching topics (cont.)¶

(by ESG Working groups)

Key messages from the symposium¶

Closeout talk, final discussion

Convener: Karl Jakobs (University of Freiburg) (Universitaet Freiburg (DE))