Open Symposium on the European Strategy for Particle Physics

Jun 23, 2025, 8:00 AM → Jun 27, 2025, 6:00 PM 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.

 

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Sponsor _Company_profile_OCEM_PE.pdf A4 per open symposium Venezia.pdf

Monday, June 23

8:00 AM → 9:00 AM Registration

9:00 AM → 10:45 AM Opening Session

9:00 AM Official Opening

9:35 AM Implementation of the last Strategy

Speaker: Fabiola Gianotti (CERN) (CERN)

10:10 AM Outstanding questions in particle physics

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

10:45 AM → 11:15 AM Coffee-Break

11:15 AM → 1:00 PM Parallel 1 - Electroweak Physics

11:15 AM → 1:00 PM Parallel 2 - Accelerator Technologies

11:15 AM → 1:00 PM Parallel 3 - Neutrinos and Cosmic Messengers

11:15 AM → 1:00 PM Parallel 4 - Strong Interactions

11:15 AM → 1:00 PM Parallel 5 – Flavor

1:00 PM → 2:00 PM Lunch Break

2:00 PM → 3:30 PM Parallel 1 - Electroweak Physics (part II)

2:00 PM → 3:30 PM Parallel 2 - Accelerator Technologies (part II)

2:00 PM → 3:30 PM Parallel 3 - Neutrinos and Cosmic Messengers (part II)

2:00 PM → 3:30 PM Parallel 4- Strong Interactions (part II)

2:00 PM → 3:30 PM Parallel 5 – Flavor (part II)

3:30 PM → 3:40 PM Short Break to allow for change rooms

3:40 PM → 5:00 PM Parallel 6 -Detector Technologies

3:40 PM → 5:00 PM Parallel 7 – BSM

3:40 PM → 5:00 PM Parallel 8 - Dark matter/Dark Sector

3:40 PM → 5:00 PM Parallel 9 -Computing

5:00 PM → 5:20 PM Coffee-Break

5:20 PM → 7:15 PM Parallel 6 -Detector Technologies

5:20 PM → 7:15 PM Parallel 7 – BSM

5:20 PM → 7:15 PM Parallel 8 - Dark matter/Dark Sector

5:20 PM → 7:15 PM Parallel 9 -Computing

8:00 PM → 10:00 PM Welcome Cocktail

Tuesday, June 24

9:00 AM → 10:50 AM Large-scale accelerator projects at CERN, part I

9:00 AM FCC-ee (incl. common infrastructure)

9:40 AM FCC-hh

10:10 AM A Linear Collider at CERN (ILC, CLIC)

10:50 AM → 11:20 AM Coffee-Break

11:20 AM → 1:00 PM Large-scale accelerator projects at CERN, part II

11:20 AM LEP3

Speaker: Tejinder Virdee (Imperial College London)

11:45 AM LHeC

12:10 PM Muon Collider

Speaker: Daniel Schulte (CERN)

12:35 PM Linear Collider Vision (C3, HALHF, wake-field acceleration)

1:00 PM → 2:30 PM Lunch Break

2:30 PM → 4:15 PM Status in China, Japan, US

2:30 PM 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)

3:05 PM 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)

3:40 PM 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)

4:15 PM → 4:45 PM Coffee-Break

4:45 PM → 7:15 PM Accelerator Technologies

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

Convener: Tor Raubenheimer (SLAC)

4:45 PM Conceptual challenges of collider proposals

Speaker: Gianluigi Arduini (CERN) (CERN)

5:15 PM The technology challenges

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

5:45 PM Non-collider high intensity concepts

Speaker: Chris Rogers (STFC, UK) (RAL)

6:15 PM Discussion

Tor Raubenheimer (discussion leader)

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

Wednesday, June 25

9:00 AM → 10:45 AM Electroweak Physics

Talks (i), (ii) Discussion

9:00 AM The Electroweak/Higgs physics landscape beyond the LHC: Open questions and exploration at future colliders

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

9:30 AM Characterisation of the Electroweak/Higgs sectors at future colliders: Comparative assessment

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

10:00 AM Discussion

Florencia Canelli (discussion leader)

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

10:45 AM → 11:15 AM Coffee-Break

11:15 AM → 1:00 PM Strong Interactions

Talks (i), (ii) Discussion

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

Speaker: Cristinel Diaconu (CPPM) (Aix-Marseille Université et CNRS/IN2P3)

11:45 AM 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 PM Discussion

Sven-Olaf Moch (discussion leader)

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

1:00 PM → 2:30 PM Lunch Break

2:30 PM → 4:15 PM Flavour physics

Talks (i), (ii) Discussion

2:30 PM Status and open questions in flavour physics

Speaker: Gino Isidori (University of Zurich)

3:00 PM Experimental programs to address open issues in flavour physics

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

3:30 PM Discussion

Tim Gershon (discussion leader)

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

4:15 PM → 4:45 PM Coffee-Break

4:45 PM → 6:30 PM Neutrinos and Cosmic Messengers

Talks (i), (ii) Discussion

4:45 PM Open questions in neutrino physics and related BSM

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

5:00 PM Measurements of neutrino properties in the SM and beyond

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

5:25 PM Cosmic Messengers for particle physics

5:45 PM Discussion

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

8:00 PM → 10:05 PM Social Dinner

Thursday, June 26

9:00 AM → 10:45 AM BSM physics

Talks (i), (ii) Discussion

9:00 AM Status and open questions in the search for Physics Beyond the Standard Model

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

9:30 AM Experimental programs to address open issues in BSM physics

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

10:00 AM Discussion

Maurizio Pierini (discussion leader)

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

10:45 AM → 11:15 AM Coffee-Break

11:15 AM → 1:00 PM Dark Matter / dark sector

Talks (i), (ii) Discussion

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

Speaker: Matthew McCullough (CERN) (CERN)

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

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

12:15 PM Discussion

Caterina Doglinoni (discussion leader)

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

1:00 PM → 2:30 PM Lunch Beak

2:30 PM → 4:15 PM Detector Technologies

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

2:30 PM Tools for Discovery – Instrumentation Requirements for Future Projects

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

3:00 PM From ECFA Detector Roadmap to DRD Collaborations and beyond

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

3:30 PM Discussion

Daniela Bortoletto (discussion leader)

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

4:15 PM → 4:45 PM Coffee-Break

4:45 PM → 6:30 PM Computing

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

Convener: Stephane Jezequel (LAPP Annecy)

4:45 PM Computing in HEP: how we got here and needs for the next decade

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

5:15 PM HEP Computing needs and ideas for the next generation initiatives

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

5:45 PM Discussion

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

Friday, June 27

9:00 AM → 11:15 AM Overarching topics (by ESG working groups)

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

9:00 AM National Inputs

Speaker: Calin Alexa (Bukarest)

9:30 AM Role of national labs, strategy implementation

Speaker: Achille Stocchi (IJCLab)

9:55 AM Relations with other fields of physics

Speaker: Marek Karliner (Tel Aviv)

10:20 AM Communication, outreach, career aspects

Speaker: Pierre Van Mechelen (Universiteit Antwerpen) (Universiteit Antwerpen)

10:45 AM ECR perspectives

Speaker: t.b.d.

11:15 AM → 11:45 AM Coffee-Break

11:45 AM → 1:05 PM Overarching topics (cont.)

(by ESG Working groups)

11:45 AM Sustainability

Speaker: Tadeusz Lesiak (Krakow)

12:10 PM Knowledge and technology transfer

Speaker: t.b.d.

12:35 PM Project comparison (first attempt)

Speaker: Gianluigi Arduini (CERN) (CERN)

1:05 PM → 1:40 PM Key messages from the symposium

Closeout talk, final discussion

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