FCC Design Study
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FCC Design Study. R. Aleksan Saclay March 24, 2014. General News. FCC Kick-off meeting Etudes conjointes IHEP/ Tsinghua – Saclay CSTS-SPP. FCC-KICKOFF meeting. 341 personnes inscrites dont 17 personnes de Saclay inscrites (+ 2 du CEA Grenoble) , 9 du CNRS !.

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FCC Design Study

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Fcc design study

FCC Design Study

R. Aleksan


March 24, 2014

General News

FCC Kick-off meeting

Etudes conjointes IHEP/Tsinghua – Saclay


Fcc design study


341 personnes inscrites

dont 17 personnes de Saclay inscrites (+ 2 du CEA Grenoble) , 9 du CNRS!

L’agenda et toutes les présentations sont accessible à partir du site du meeting:


Fcc design study

Future Circular Collider Study - SCOPE

CDR and cost review for the next ESU (2018)

  • Forming an international collaboration to study:

  • pp-collider (FCC-hh)  defining infrastructure requirements

  • e+e-collider (FCC-ee) as potential intermediate step

  • p-e (FCC-he) option

  • 80-100 km infrastructure in Geneva area

~16 T  100 TeVpp in 100 km

~20 T  100 TeVpp in 80 km

Such a tunnel seems to be feasible (i.e. not a real breakthrough)

(see Gotthard talk; F. Amberg)

… but what would be the cost???

Slide de M. Benedikt

Fcc design study

Proposal for FCC Study Time Line

Kick-off, collaboration forming,

study plan and organisation


Ph 1: Explore options

“weak interaction”

Workshop & Reviewidentification of baseline

Ph 2: Conceptual study of baseline “strong interact.”

Workshop & Review, cost model, LHC results  study re-scoping?

Ph 3: Study


Workshop & Review

 contents of CDR

4 large FCC Workshops distributed over participating regions


Release CDR & Workshop on next steps

Comments RA: this schedule seems very difficult in my views … too slow ramping up!

Slide de M. Benedikt

Fcc design study

Proposal for FCC WBS top level


Slide de M. Benedikt

Fcc design study

FCC EU Design Study (DS) Proposal

  • Horizon2020 call – design study, deadline 02.09.2014

  • Prepare proposal parallel to FCC collaboration setup

  • Goals fo EU DS: conceptual design, prototypes, cost estimates, …

  • From FP7 HiLumi LHC DS  positive experience:

  • 5-6 work packages as sub-set of FCC study

  • ~10-15 beneficiaries (signatories of the contract with EC)

Time line




end of June

input from



end of May



proposal, 2 Sept.







  • March April May June July August September 2014

Non-EU partners can join asbeneficiary – signatorywith or w/o EC

contribution (contractual commitment) or as associated partner – non-signatory(in-kind contribution with own funding, no contractual commitment)

Comments RA: The DS proposal is being developed and discussed within ESGARD. Next meeting March 24

Slide de M. Benedikt

Fcc design study

TLEP VIDYO meetings

  • Every 2 weeks on Monday 15:00-17:00

  • Emphasis in alternance Accelerator / Physics




December 2ndsee


January 6thsee


February 3rdsee


March 10thsee



Many meeting done: January 10, 27, 29, February 6, 10-11

Several meeting scheduled: March 20, May 26-28 (1st Hadron Collider Workshop)

Fcc design study


  • For about 8 years, we have been talking about “What can be done after BEPCII in China”

  • Thanks to the discovery of the low mass Higgs boson, and stimulated by ideas of Circular Higgs Factories in the world, CEPC+SppC configuration was proposed in Sep. 2012

A 50-70 km tunnel is veryaffordable in China NOW

Slides fromYifang Wang (IHEP director)

Fcc design study

Timeline (dream)

  • CPEC

    • Pre-study, R&D and preparation work

      • Pre-study: 2013-15

        • Pre-CDR by the end of 2014 for R&D funding request

      • R&D: 2016-2020

      • Engineering Design: 2015-2020

    • Construction: 2021-2027

    • Data taking: 2028-2035

  • SppC

    • Pre-study, R&D and preparation work

      • Pre-study: 2013-2020

      • R&D: 2020-2030

      • Engineering Design: 2030-2035

    • Construction: 2035-2042

    • Data taking: 2042 -

Comments RA: Veryaggressiveschedule!

Fcc design study

Etudes conjointes IHEP/Tsinghua- Saclay

Intérêt fort de physiciens IHEP et Tsinghua pour CEPC (similaire à FCC)

Il est de notre intérêt de suivre ces développements et éventuellement de faire des études conjointes

Suite à la suggestion d’Eric, nous avons fait une demande de financement (modeste) dans le cadre du FCPPL pour explorer la mise en œuvre d’une telle collaboration

i.e. faire quelques voyages exploratoires dans les 2 sens

  • Si convergence de vue et d’intérêts

    • Etudes de physique communes

    • R&D communes

    • accueil de thésard …

Réponse en Avril lors du meeting FCPPL

à Clermont-Ferrand

Fcc design study


6 juin

  • Agenda: CSTS pour les futurs grands projets

    • ILC/CLIC

    • ILC/CLIC-R&D

    • FCC

  • Proposition Anne Isabelle pour FCC:

  • Une présentation générale sur le physics case du FCC par quelqu’un d’extérieur à l’IRFU (Ellis, Gianotti, Grojean…)

  • Une Présentation du groupe sur les activités IRFU

Fcc design study

Specifictopics for whichthereis an interestat Saclay


SUSY+other new physics:M. Besançon

Invisible H and Z width:S. Ganjour

Hgccdecays:F. Couderc


Tracking (and calorimetry):P. Schwemling

Calorimetry/Alim./Readout:E. Locci


Costing:P. Gastinel

BeamOptic:J Payet, P. Nghiem

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