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

08:00 → 09:00 Registration

09:00 → 10:45 Opening Session

09:00 Official Opening

09:35 Implementation of the last Strategy

Speaker: Fabiola Gianotti (CERN) (CERN)

10:10 Outstanding questions in particle physics

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

10:45 → 11:15 Coffee-Break

11:15 → 13:00 Paralle Session I-V

11:15 Parallel Session I - Electroweak Physics

Convener:
Monica Dunford (Heidelberg University)
Jorge de Blas (University of Granada)

11:15 Parallel Session II - Accelerator Technologies

11:15 Parallel Session III - Neutrinos and Cosmic Messengers

11:15 Parallel Session IV - Strong Interactions

11:15 Parallel Session V - Flavor

13:00 → 14:00 Lunch Break

14:00 → 15:30 Parallel Session I-V Part II

14:00 Parallel IV - Strong Interactions

14:00 Parallel Session I - Electroweak Physics

14:00 Parallel Session II - Accelerator Technologies

14:00 Parallel Session III - Neutrinos and Cosmic Messengers

14:00 Parallel Session V - Flavor

15:30 → 15:40 Short Break to allow for change rooms

15:40 → 17:00 Parallel Session VI-IX

15:40 Parallel Session IX - Computing

15:40 Parallel Session VI - Detector Technologies

15:40 Parallel Session VII - BSM

15:40 Parallel Session VIII - Dark matter/Dark Sector

17:00 → 17:20 Coffee-Break

17:20 → 19:15 Parallel VI-IX

17:20 Parallel Session IX - Computing

17:20 Parallel Session VI - Detector Technologies

17:20 Parallel Session VII - BSM

17:20 Parallel Session VIII - Dark matter/Dark Sector

20:00 → 22:00 Welcome Cocktail

Tuesday, 24 June

09:00 → 10:45 Large-scale accelerator projects at CERN, part I

10:45 → 11:15 Coffee-Break

11:15 → 13:00 Large-scale accelerator projects at CERN, part II

13:00 → 14:30 Lunch Break

14:30 → 16:15 Status in China, Japan, US

14:30 Status and plans for the realisation of the Circular Electron Positron Collider (CEPC) and other large-scale projects in China

Speaker: Mr Yifang Wang (IHEP Beijing) (IHEP)

15:00 Discussion

15:05 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)

15:35 Discussion

15:40 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)

16:10 Discussion

16:15 → 16:45 Coffee-Break

16:45 → 19:15 Accelerator Technologies

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

Convener: Tor Raubenheimer (SLAC)

16:45 Conceptual challenges of collider proposals

Speaker: Gianluigi Arduini (CERN) (CERN)

17:15 The technology challenges

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

17:45 Non-collider high intensity concepts

Speaker: to be defined

18:15 Discussion

Tor Raubenheimer (discussion leader)

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

Wednesday, 25 June

09:00 → 10:45 Electroweak Physics

Talks (i), (ii) Discussion

09:00 The Electroweak/Higgs physics landscape beyond the LHC: Open questions and exploration at future colliders

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

09:30 Characterisation of the Electroweak/Higgs sectors at future colliders: Comparative assessment

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

10:00 Discussion

Florencia Canelli (discussion leader)

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

10:45 → 11:15 Coffee-Break

11:15 → 13:00 Strong Interactions

Talks (i), (ii) Discussion

11:15 Open questions and experimental prospects: precision QCD & internal structure of protons and nuclei

Speaker: Cristinel Diaconu (CCPM Marseille) (DESY)

11:45 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)

12:15 Discussion

Sven-Olaf Moch (discussion leader)

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

13:00 → 14:30 Lunch Break

14:30 → 16:15 Flavour physics

Talks (i), (ii) Discussion

14:30 Status and open questions in flavour physics

Speaker: Gino Isidori (University of Zurich)

15:00 Experimental programs to address open issues in flavour physics

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

15:30 Discussion

Tim Gershon (discussion leader)

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

16:15 → 16:45 Coffee-Break

16:45 → 18:30 Neutrinos and Cosmic Messengers

Talks (i), (ii) Discussion

16:45 Open questions in neutrino physics and related BSM

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

17:00 Measurements of neutrino properties in the SM and beyond

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

17:25 Cosmic Messengers for particle physics

17:45 Discussion

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

20:00 → 22:05 Social Dinner

Thursday, 26 June

09:00 → 10:45 BSM physics

Talks (i), (ii) Discussion

09:00 Status and open questions in the search for Physics Beyond the Standard Model

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

09:30 Experimental programs to address open issues in BSM physics

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

10:00 Discussion

Maurizio Pierini (discussion leader)

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

10:45 → 11:15 Coffee-Break

11:15 → 13:00 Dark Matter / dark sector

Talks (i), (ii) Discussion

11:15 Status and open questions in dark matter and dark sector physics

Speaker: Matthew McCullough (CERN) (CERN)

11:45 Experimental programs to address open issues in dark matter and dark sector physics

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

12:15 Discussion

Caterina Doglinoni (discussion leader)

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

13:00 → 14:30 Lunch Beak

14:30 → 16:15 Detector Technologies

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

14:30 Tools for Discovery – Instrumentation Requirements for Future Projects

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

15:00 From ECFA Detector Roadmap to DRD Collaborations and beyond

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

15:30 Discussion

Daniela Bortoletto (discussion leader)

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

16:15 → 16:45 Coffee-Break

16:45 → 18:30 Computing

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

Convener: Stephane Jezequel (LAPP Annecy)

16:45 Computing in HEP: how we got here and needs for the next decade

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

17:15 HEP Computing needs and ideas for the next generation initiatives

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

17:45 Discussion

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

Friday, 27 June

09:00 → 10:45 Overarching topics (by ESG working groups)

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

10:45 → 11:15 Coffee-Break

11:15 → 12:30 Overarching topics (cont.)

(by ESG Working groups)

12:30 → 13:30 Closeout Session

Closeout talk, final discussion

13:30 → 14:30 --

14:30 → 16:30 ESG Meeting