Collider physics (AF):
- Answers to question 3a-3f were presented and some comments/suggestions were made:
- At low-energy, ISR emission means that there is a tail that can be used to scan energies for BSM searches.
- Some do not see a problem if e+e- physics is performed in China, or elsewhere, but acknowledge the need for CERN to retain expertise in accelerator and technology development. A flagship project does not necessarily mean a large tunnel. HE-LHC was mentioned as one such project, but there can be other more smaller projects at CERN.
- CEPC should not be named a threat.
- The total gain of any project should be considered: science+technology, etc.
Particle physics at ESS (TE):
- Large investment from Sweden in ESS, with little return in terms of scientific projects for particle physics so far. Several experiments can be considered at ESS: HIBEAM/NNBAR, REDTOP, SevNS, ESSnuSB
- The strategy should include non-CERN facilities for particle physics and not make negative recommendations.
- Individual interests exist at UU, but only experiments with sizeable commitments (faculty staff) should be brought forward into the Swedish input.
- Own input to the strategy by the ESS after their physics workshop?
Nuclear/hadron physics (AK, KS):
- NUPECC long-term strategy just completed.
- Two main activities to probe CP-violation: hadron structure (Belle II, Panda) and flavour physics (LHCb + one faculty staff on NNBAR).
- Discussion item relevant to the strategy input: low- to intermediate-energy antiproton experiment in Europe would be interesting.
Astroparticle physics (EoS):
- Lots of synergies with particle physics: high-energy neutrinos and cosmic rays inform, overlap of BSM programs.
- Forward physics (FPF) at colliders informative for neutrino physics.
- Multi-messenger and gravitational waves in APPEC strategy.
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