future circular colliders (fcc) (and other relevant one)

Future Circular Colliders (FCC) (and other relevant one)

FCC study page : https://espace2013.cern.ch/fcc/Pages/default.aspxFCC-ee page : http://cern.ch/FCC-ee

FCC kick-off meeting : https://indico.cern.ch/event/282344/

R.B. ApplebyUniversity of Manchester / Cockcroft Institute

PPAP community meeting21-22 July 2014

1

FCC … 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

•Energy step ~ 7 (Tevatron -> LHC

-> FCC)2PPAP community meeting 21-22

July 2014

~16 T 100 TeV pp in 100 km~20 T 100 TeV pp in 80 km

Future Circular Collider Study - SCOPE CDR and cost review for the next ESU (2018)

FCC-hh : 100 TeV pp collider

Courtesy V. Shiltsev,

LHC27 km, 8.33 T14 TeV (c.m.)

FCC-hh (alternative)

80 km, 20 T100 TeV (c.m.)

FCC-hh (baseline)

100 km, 16 T100 TeV (c.m.)

“HE-LHC”

27 km, 20 T33 TeV (c.m.)

Geneva

PS

SPS

LHC

PPAP community meeting 21-22 July 2014

3

CepC/SppC study, CepC CDR end of 2014, e+e- collisions ~2028; pp collisions ~2042

(announced Institute of High Energy Physics, Beijing, September 2012)

Qinhuangdao (秦皇岛）

50 km

70 km

Yifang Wang

CepC, SppC

CepC/SppC study, CepC CDR end of 2014, e+e- collisions ~2028; pp collisions ~2042

(announced Institute of High Energy Physics, Beijing, September 2012)

Qinhuangdao (秦皇岛）

50 km

70 km

Yifang Wang

CepC, SppC

Statement in Feb 2014 at kick-off meeting by IHEP representative “a 50 to 70 km tunnel is very affordable in China now”

FCC-hh : opens three physics windows

➥ Access to new particles in the few TeV to 30 TeV mass range, beyond LHC reach

➥ Immense/much-increased rates forphenomena in the sub-TeV mass range →

increased precision w.r.t. LHC

➥ Access to very rare processes in the sub-TeV mass range → search for phenomena

invisible at the LHCPPAP community meeting 21-22

July 20146

7PPAP community meeting 21-22 July 2014

Hadron collider FCC-hh parameters

PRELIMINARY

•Energy 100 TeV c.m.•Injection energy 3.3 TeV (LHC 450 GeV) (what magnets/tunnel?)•Dipole field ~ 16 T (design limit) [20 T option]•Circumference ~ 100 km (option 80km)•Straight sections 12 (LHC 8) [expts, collimation, inj/exrt, RF..)•#IPs 2 main (tune shift) •Beam-beam tune shift 0.01 (total over 2 IRs) •Bunch spacing 25 ns [5 ns option]•Bunch population 1x1011 p (LHC 1.15x1011)•#bunches 10600 (25ns) 53000 (5ns) (LHC 2808)•Stored beam energy 8.2 GJ/beam•Emittance normalised 2.15x10-6m, normalised•Peak luminosity 5 (to 10)x1034 cm-2s-1

•Peak inelastic events/BX 171 (25 ns) 34 (5ns) (LHC 27)•* 1.1 m [scaled by root(E) to use LHC optics)] (LHC 0.55m)•RMS spot size 6.8 um (LHC 16.7 um)•Synchrotron radiation arc 26 W/m/aperture (filling fact. 78% in arc)•Synchrotron radiation per ring 2.4 MW•Crossing angle 74 urad (12 sigma)

See FCC-ACC-SPC-0001(red = key, bold=challengeblue=special note)


Lepton collider FCC-hh parameters

• Design choice: max. synchrotron radiation power set to 50 MW/beam

• Defines the max. beam current at each energy. (SR \propto E^4, so current drops by E^4)

• 4 physics working points

• Optimization at each energy (bunch number & current, emittance, etc).

• Luminosity lifetime dominated by burn-off of beam

• Note : For H and ttbar working points (higher energy) the beam lifetime of ~few minutes is dominated by Beamstrahlung (momentum acceptance of 2%). Fundamental limit

Parameter Z WW H ttbar LEP2

E/beam (GeV) 45 80 120 175 104

I (mA) 1450 152 30 6.6 3

Bunches/beam 16700 4490 170 160 4

Bunch popul. [1011] 1.8 0.7 3.7 0.86 4.2

L (1034 cm-2s-1) 28.0 12.0 4.5 1.2 0.012

See FCC-ACC-SPC-0004


FCC Kick-off Meeting Geneva

http://indico.cern.ch/e/fcc-kickoff


FCC Kick-off participants

341 registered participants - geographical distribution

Europe (284)Austria: 1CERN: 140Czech Republic: 2Denmark: 1France: 30Germany: 14Greece: 1Hungary: 2 Italy: 20Poland: 6Portugal: 2Russia: 8

Americas (37)Canada: 1Mexico: 2US: 34

Asia (19)China: 9Japan: 9Republic of Korea: 1

Africa (1)South Africa: 1

Serbia: 1Spain: 11Sweden: 1Switzerland: 19 (w/o CERN)UK: 25

Well-balanced world-wide attendance, 7% from UK


Steps taken since w/s

• Establish an international collaboration • Following very positive reactions and the enthusiasm

during the Kick-off meeting: Invitations to institutes to join collaboration Work breakdown structure defined

(machine, detector, physics) Collected expressions of interest at end of May 2014, to form

nucleus of collaboration by September 2014

First international collaboration board meeting 9-10 September at CERN

March April May June July August September 2014

kick-offevent

expressions of interest (EOI) proposed 1stICB meetingdiscussions iterations


European design study

Goals of EU DS: conceptual design, prototypes, cost estimates, … From FP7 HiLumi LHC DS positive experience:• 5-6 work packages as sub-set of FCC study Call limited to 3 MEURO EU• ~10 beneficiaries (signatories of the contract with EC)

Horizon2020 call – design study : EuroCirCol submission 28.08.2014 (deadline 02.09.2014). Focused on machine (but study for CDR is broader, with physics, experiments)

kick-offevent

input from interested partners,end of May

submission of EU FCC DS proposal, 2 Sept.

discussions

iteration,agreements,signatures

March April May June July August September 2014

completedraftproposal,end of June

Time line


DS structure (evolving)WP4: High-field Accelerator Magnet Design FCC-hh Magnet designField quality evaluation and comparisonField optimisation for DA maximum

WP3: Arc design FCC-hhArc lattice designDynamic aperture evaluationImpedance calculations and instabilitiesSR: photo-electrons and e-cloud effect Aperture and field quality specifications

WP2: Interaction region design FCC-hhIR and final focus designMDIShielding and FF quad protectionBeam parametersCollimation requirementsBeam-beam

WP5: Beam pipe design FCC-hhVacuum designBeam screen optimisationBeam screen coatingCryogenics integration Prototype productionPerformance measurements

WP1: Management, Coordination, Implementation & Costing Coordination & OutreachRealization aspects

WP6: IR&beam-beam FCC-ee

italics: optional inclusion in H2020 WP 5


UK EuroCirCol participationWP4: High-field Accelerator Magnet Design FCC-hh Magnet designField quality evaluation and comparisonField optimisation for DA maximum

WP3: Arc design FCC-hhArc lattice designDynamic aperture evaluationImpedance calculations and instabilitiesSR: photo-electrons and e-cloud effect Aperture and field quality specifications

WP2: Interaction region design FCC-hhIR and final focus designMDIShielding and FF quad protectionBeam parametersCollimation requirementsBeam-beam

WP5: Beam pipe design FCC-hhVacuum designBeam screen optimisationBeam screen coatingCryogenics integration Prototype productionPerformance measurements

WP1: Management, Coordination, Implementation & Costing Coordination & OutreachRealization aspects

WP6: IR&beam-beam FCC-ee

CI-LIV CI-LIV

STFC/ASTECSTFC/ASTEC

CI-MANJAI

CI-MANJAI

Expect several FTEs of effort across the UK, with around 50% co-funded from Europe Contact me (CI) or Andrei Seryi (JAI) for

info


Study timeline

2014 2015 2016 2017 2018

Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4

Explore options“weak

interaction”


interaction”

Report

Report

Study plan, scope definition

Workshop & Review

contents of CDR

Release CDR

Workshop & Review: identification of baselineconceptual study of

baseline “strong interact.”

conceptual study of baseline “strong

interact.” Workshop & Review, cost model, LHC results study

re-scoping?Elaboration,consolidationElaboration,consolidation


Study timeline

2014 2015 2016 2017 2018

Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4


interaction”


interaction”

Report

Report

Study plan, scope definition

Workshop & Review

contents of CDR

Release CDR

Workshop & Review: identification of baselineconceptual study of

baseline “strong interact.”

conceptual study of baseline “strong

interact.” Workshop & Review, cost model, LHC results study

re-scoping?Elaboration,consolidationElaboration,consolidation

Explore options, now – spring 2015:-Investigate different options in all technical areas-Deliverables: description and comparison of options with relative merits/cost, Develop schedules, understand relative impact of options on overall schedule (physics operation time, machine installation time, etc.)

-FCC workshop to converge to common baseline with small number of options-Proposed WS date 23 – 27 March 2015 -Followed by review ~2 months later, begin June 2015


FCC timeline

tod

ay

ProjectKick-off meeting: 11th Nov. 2013 (CI/Daresbury)

CDR and Cost Review 2018

ES

U

Kick-off meeting12th -14th Feb. 2014 (Geneva)

CDR and Cost Review 2018Study

FCC

• LHC and HL-LHC operation until ~2035• Must start now developing FCC concepts to be ready in time

Detector and physics : ee


Experimental and phenomenological studies coordinated by Alain Blondel and Patrick Janot, with 11 working groups.

Conveners appointed and beginning to be active.

Full details at http://cern.ch/FCC-ee

A series of physics workshops (7 since 2011) have developed the concepts. The most recent was in June at CERN

http://indico.cern.ch/event/313708/

Several ILD members have suggested using ILD as the benchmark detector but negotiations with ILD have not started. Also developing collaboration with the CLIC detector group

Detector and physics : hh


The hh detector is also part of the design study, but will not be funded in the European project (to focus on machine at this stage)

Recent workshop

http://indico.cern.ch/event/304759/other-view?view=standard

A working group structure has now been defined e.g. Higgs, BSM, calorimetry, with a more detailed structure after the summer.

Will heavily draw from the LHC GPD design, structure and people

(Thanks to Fabiola Gianotti for latest info last week!)

Outlook


• There are strongly rising activities in energy-frontier circular colliders worldwide. CERN is setting-up an international study for the design of Future Circular Colliders (FCC).

• Worldwide collaboration in all areas, i.e. physics, experiments and accelerators will be important for the field of HE physics in general and to reach the demanding goal of a CDR by 2018.

• Many challenges to be faced, including for the machine (but not only)• Magnet strength (and many dipoles needed!)• Design of arc cell (drives costs)• Synchrotron radiation : heating of machine

• Work in many areas has started, over the coming months a global collaboration will be formed. First collaboration board meeting 9/10 September 2014.

• The UK (CI, JAI) is a high profile participant in the European design study for the machine (principally MDI, vacuum)

• Detector (hh and ee) working groups starting to be formed, and conveners appointed in the various areas.

CI SAC 4-6 November 2013 22

Collider energy, year-on-year

24PPAP community meeting 21-22 July 2014Courtesy V. Shiltsev,

pp

e+e-

factor 10 every 20-30 years

factor 10 every 10 years

factor 105-107 in e+e-

luminosity

Ecm=2ec Bhadron-lepton

FCC-heLHeC

ep

Summary: European Strategy Update 2013Design studies and R&D at the energy frontier


• with emphasis on proton-proton and electron-positron high-energy frontier machines.

• These design studies should be coupled to a vigorous accelerator R&D programme, including high-field magnets and high-gradient accelerating structures,

• in collaboration with national institutes, laboratories and universities worldwide.

• http://cds.cern.ch/record/1567258/files/esc-e-106.pdf

….“to propose an ambitious post-LHC accelerator project at CERN by the time of the next Strategy update”:d) CERN should undertake design studies for

accelerator projects in a global context,


From M. ManganoJune 2014

27

FCC-he: high-energy lepton-hadron collider

RR LHeC:new ring in LHC tunnel,with bypassesaround experiments

LR LHeC:recirculatinglinac withenergy recovery

LHeC CDR , published in 2012


FCC-he: high-energy lepton-hadron collider

RR LHeC:new ring in LHC tunnel,with bypassesaround experiments

LR LHeC:recirculatinglinac withenergy recovery

similar two options for FCC: (1) FCC-ee ring, (2) ERL – from LHeC or new

LHeC CDR , published in 2012

FCC-he – 2nd option: based on LHeC

FCC

J. Osborne

FCC-he – 2nd option: based on LHeC

FCC

J. Osborne

LHeC ERL design compatible

with ep collisionsat both LHC and FCC


FCC MoU

Collaboration based on general MoU and specific addenda:

future circular colliders (fcc) (and other relevant one)

Documents

tev lhc

ns lhc

lhc optics lhc

e e collisions

ppcollider fcchh

lhc access

um lhc

tevatron lhc