future accelerators at the high energy frontier emmanuel tsesmelis directorate-general unit, cern 4...
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Future Accelerators at theHigh Energy Frontier
Emmanuel Tsesmelis
Directorate-General Unit, CERN
4th International Conference on New Frontiers in Physics
Orthodox Academy of Crete, Kolymbari, Crete
29 August 2015
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The Three Frontiers
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Colliders - 2006
In operationIn construction
HadronsLeptonsLeptons-Hadrons
LHCRHIC
DAFNETau-Charm
TEVATRONPEP-II KEK-B
CESR-C
VEPP 4MVEPP 2000
HERA
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Colliders - 2012 HadronsLeptonsLeptons-Hadrons
In operationIn construction
RHIC
DAFNETau-Charm
VEPP 4MVEPP 2000
SUPER KEK-BLHC
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The lhc and its upgrades
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CERN Accelerator Complex
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A New Era in Fundamental ScienceA New Era in Fundamental Science
Exploration of a new energy frontierExploration of a new energy frontierin p-p and Pb-Pb collisions in p-p and Pb-Pb collisions
LHC ring:LHC ring:27 km circumference27 km circumference
CMSCMS
ALICEALICE
LHCbLHCb
ATLASATLAS
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~2023
2018
2013/14
2009Start of LHC
Start of LHC
Run 1: 7 and 8 TeV centre-of-mass energy, luminosity ramping up to several 1033 cm-2 s-1, ~25 fb-1 delivered
>2035
LS3 – High-luminosity LHC (HL-LHC). New focusing magnets and CRAB cavities for very high luminosity with levelling
LS3 – High-luminosity LHC (HL-LHC). New focusing magnets and CRAB cavities for very high luminosity with levelling
LS2 - Injector and LHC upgrades to go to ultimate luminosityLS2 - Injector and LHC upgrades to go to ultimate luminosity
LS1 - LHC shut-down to prepare machine for design energy and nominal luminosity
LS1 - LHC shut-down to prepare machine for design energy and nominal luminosity
Run 4: Collect data until > 3000 fb-1
Run 3: Ramp up luminosity to 2.2 x nominal, reaching ~100 fb -1 / year accumulate few hundred fb-1
Run 2: Ramp up luminosity to nominal (1034 cm-2 s-1, ~50 to 100 fb-1) and centre-of-mass energy (13 and 14 TeV)
The Predictable Future - LHC Timeline
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LHC results will guide the way at the energy frontierStudy of the properties of the Higgs Boson &
physics beyond the Standard Model
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HL-LHC: In-kind Contribution and Collaboration for Design and Prototypes
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Q1-Q3 : R&D, Design, Prototypes and in-kind USAD1 : R&D, Design, Prototypes and in-kind JPMCBX : Design and Prototype ESHO Correctors: Design and Prototypes ITQ4 : Design and Prototype FR
Q1-Q3 : R&D, Design, Prototypes and in-kind USAD1 : R&D, Design, Prototypes and in-kind JPMCBX : Design and Prototype ESHO Correctors: Design and Prototypes ITQ4 : Design and Prototype FR
CC : R&D, Design and in-kind USACC : R&D, Design and in-kind USA CC : R&D and Design UK CC : R&D and Design UK
ATLASCMS1.2 km of LHC to change !!1.2 km of LHC to change !!
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Beyond the lhcCircular colliders
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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 TeV pp in 100 km~20 T 100 TeV pp in 80 km
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High-Energy LHC (HE-LHC)?
2-GeV Booster
Linac4
SPS+,1.3 TeV, 2030-33
HE-LHC >203516.5 TeV20 T Dipoles
Main challenge:
High-field Magnets
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CEPC+SppC 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 very affordable in China NOW
Yifang WangFeb. 2014
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Site Preliminary selected: Qinhuangdao (秦皇岛) Strong support by the local government
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CEPC+SppC Current Design
CEPC Basic Parameters: Collision energy ~240 - 250 GeV Synchrotron radiation power ~50 MW 50/70 km in circumference
SppC Basic Parameters: Collision energy ~50 - 70 TeV 50/70 km in circumference Needs Bmax ~20T
CEPC circumference determined later based on cost estimate.
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Muon Collider (?)
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Beyond the lhclinear colliders
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ILC (and the Compact Linear Collider CLIC)
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Linear e+e- collidersLuminosities: few 1034 cm-2s-1
CLIC
ILC
•2-beam acceleration schemeat room temperature•Gradient 100 MV/m•√s up to 3 TeV •Physics + Detector studies for 350 GeV - 3 TeV
•Superconducting RF cavities (like XFEL)•Gradient 32 MV/m•√s ≤ 500 GeV (1 TeV upgrade option)•Focus on ≤ 500 GeV, physics studies also for 1 TeV
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The International Linear Collider
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shield wall removed
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CLIC Implementation
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Note: the design is currently being re-optmised, e.g. to include 350 GeV as the first stage
Possible lay-out near CERN
CLIC parameters
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Plasma Accelerators
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The Sub-Fermi Scale (2015-2050)?
pp, AA
LHC, HL-LHC, RHIC, NICA FCC-pp, HE-LHC, SppCe+e-
SuperKEKB, CEPC, FCC-
e+e-,Linear Collider
(ILC, CLIC)
epCEPC+SppCeRHIC, EIC,
FCC-ep, LHeC