ESPPU Drafting Day

Contribution List

1. Introduction: agreeing/discussing the physics priorities for the future

09/01/2025, 10:30

Session 1

This discussion aims to agree/discuss a set of (non-prioritised) physics goals for the future, with the view that these goals can be used to frame subsequent discussions on the future roadmap, including (but not limited to):

• Full characterisation of the properties of the Higgs
• Complementary coverage of possible dark matter candidates
• Push energy frontier exploration to highest...

2. Introduction- additional priorities for the future

09/01/2025, 10:45

Session 1

Opportunity to make specific statements on the list of non-physics considerations for the future. These will not be prioritised (we hope we can agree they are all important) but there are specific statements we may want to make on each of these areas:
- Long-term perspective
- Financial and human resources: requirements and effect on other projects
- Timing
- Careers and training
-...

3. Metrics and timescales for answering q3a “Which is the preferred next major/flagship collider project for CERN?”

09/01/2025, 11:00

Session 1

We would like community input on what the metrics should be for converging on an answer to q3a, and what timescale we should be aiming to provide an answer (i.e. before March 31st or after all community inputs have been submitted).
[15’] Framing discussion- summary of the additional information we expect to be available after 31st March i.e. updated HL-LHC projections, updated LEP3 proposal,...

4. Scenario planning for the future: possible “plan A” options for CERN and scenarios for risk mitigation.

09/01/2025, 11:45

Session 1

It was agreed in November that we should aim to discuss the future roadmap in terms of optimisation/risk mitigation for different scenarios. For the January drafting day, we have prepared two lists of scenarios for the community to provide input on (both before the meeting and during the meeting). The first considers alternative “plan A” roadmaps for CERN, and the second focuses on...

5. Scenario planning

09/01/2025, 13:15

Session 2

Aim to continue and conclude discussion of possible future collider scenarios.

6. Accelerator R+D topics for the future

09/01/2025, 13:45

Session 2

• Blue skies R+D topics- do we want to prioritise any (subset) of technologies?
• Do we want to make a statement on the importance of ringfencing funding for disruptive technologies?

7. Additional considerations for the future collider roadmap

09/01/2025, 14:15

Session 2

• Industrial input/return
• Communication/public engagement
• Training and retention of talent (including theory, software, instrumentation, accelerator science).

8. Framing discussion for non-collider topics

09/01/2025, 15:15

Session 3

• Aim to present information on which non-collider projects/ experiments exceed the resource threshold (in terms of costs) for possible direct consideration/mention in our ESPPU input.
• Will also attempt to summarise points raised in November and submitted through the community inputs.

9. Summary of comments/considerations for non-collider questions

09/01/2025, 15:30

Session 3

• Future of neutrino physics- statements on neutrino platform? Beyond accelerators?
• Dark matter and complementarity
  a) Do we want a statement on Boulby ambitions?
  b) Similar for FPF/Ship
• Importance of smaller (complementary) experiments
• Quantum technologies
• Others (based on community inputs)

10. Discussion of input related to astroparticle/ nuclear physics

09/01/2025, 16:00

Session 3

11. Wrap-up + next steps

09/01/2025, 16:30

Session 3