Physics scoping.
The three presentations by Tevong You (theory) , Monica D’Onofrio (detector), and Jim Brookes (trigger/daq) addressed the open issues for FCChh at the moment. It was clear from the discussion following the talks that there are clear opportunities for UK physicists to take lead in new studies on the timescale of the FCC feasibility study.
The suggested way to proceed is that those interested in similar physics topics should work together to make progress. These small working teams will be established over the coming months. A preliminary list of topics will slowly become available on the (brand new) FCC-UK foswiki here:
https://foswiki.web.cern.ch/FCCUK/FCChhActivities
Specific discussion on the day included:
- We should understand relative sensitivity to EFT in (i) differential cross sections at FCChh and (ii) coupling constraints at FCCee.
- No one has studied combinatoric backgrounds when pile-up = 1000 (where objects come from different pp interactions).
- Could data scouting / real time analysis be a solution for FCChh trigger issues?
- UK interest in studying the impact of tau performance and forward jets. Maybe a more general programme on hadronic object reconstruction?
- Interest in revisiting the detector design (and cavern layout) for long-lived particles. Is the typical collider detector optimal?
Practicalities of running simulations.
Two presentations by Matt Sullivan (FCCAnalyses) and Chris Gutschow (Rivet) on the software frameworks available for FCC studies:
- Both solutions offer basic smearing/efficiency parameterisations.
- Lack of MC simulations is a barrier to doing studies. It was suggested that the UK should help with this.
- Strong support for a software ‘hackathon’ to gain hands on experience of running the packages. Aim to organise this on the October/November timescale.
R&D and funding landscape
Two presentations by Dave Newbold (Accelerator) and Phil Allport (Detector) on the ECFA Roadmaps. It was clear from the subsequent discussions that there was a strong desire for the UK to get involved in more detector R&D relevant to FCChh.
- It was agreed that new funding streams are needed to support this R&D programme, as well as the UK involvement in the CERN DRD collaborations. There is an upcoming infrastructure bid that might be appropriate for this.
- Strong UK support for an R&D programme on radiation-hard 4D tracking.
- Need to do this for both the detector and the daq
- There is a two day workshop being arranged on tracking for FCCee on September 7th/8th in Birmingham.
- Support also for R&D programme on calorimetry.
- The magnet issues were brought up as the potential showstopper, but it appears there is no clear/strong interest on magnet R&D in the UK accelerator community. It is also true that other countries have invested heavily in this area and have built up an industrial base.
Akram Khan
Andrew Pilkington
Carl Gwilliam
Chris Pollard
Christian Gutschow
Cristiano Sebastiani
Darren Price
Dave Newbold
Francisca Munoz Sanchez
Frank Krauss
Gavin Davies
Harriet Watson
James Frost
Jens Dopke
Jim Brooke
Jonathan Butterworth
Mark Owen
Matthew James Sullivan
Michaela Queitsch-Maitland
Monica D'Onofrio
NICHOLAS WARDLE
Oliver Fischer
Oscar Augusto De Aguiar Francisco
Philip Patrick Allport
Roy Lemmon
Sarah Louise Williams
Seth Zenz
Sinead Farrington
Terry Wyatt
Tevong You
Tina Potter
