Glion Colloquium / June CERN Long-Term Plan CERN Long-Term Plan Accelerating Science and Innovation R.-D. Heuer, CERN HiLumi Kick-Off, 18 Nov 2011

“Discovery” of Standard Model through synergy of hadron - hadron colliders (e.g. Tevatron) lepton - hadron colliders (HERA) lepton - lepton colliders (e.g. LEP, SLC) Past few decades

possible due to precision measurements known higher order electroweak corrections LEP Test of the SM at the Level of Quantum Fluctuations indirect determination of the top mass prediction of the range for the Higgs mass 3

Joachim Mnich | DESY Scientific Council May 16, 2010 | Seite 4 HERA: Impact on PDF a………………………………………………………………………………...a

Exciting Times At the energy frontier, the LHC brings us into unexplored territory: Excellent progress Accelerator – Experiments – Grid ‘Today’

origin of mass/matter or origin of electroweak symmetry breaking unification of forces fundamental symmetry of forces and matter where is antimatter unification of quantum physics and general relativity number of space/time dimensions what is dark matter what is dark energy Key Questions of Particle Physics For most questions: new particles should appear at TeV scale or below  territory of the LHC

Summary of Prospects SM-Higgs Boson, with a mass between ( GeV) will either be discovered or excluded until end 2012 SM Higgs Search Prospects (Mass in GeV) ATLAS + CMS ≈ 2 x CMS 95% CL exclusion 3  sensitivity5  sensitivity 1 fb fb fb fb

8 LHC and the Standard Model Finding the Higgs: Discovery Excluding the SM-Higgs: Discovery Reminder: LHC is poised to clarify mechanism of electroweak symmetry breaking

Oversimplified Summary of Searches for New Physics

Murayama, ICFA Seminar, 2011 CERN 10 LHC and Theory…

LHC Strategy Full exploitation of the LHC physics potential  maximize integrated luminosity useful for physics 11

The predictable future: LHC Time-line ~2021/ or / Start of LHC Run 1: 7 TeV centre of mass energy, luminosity ramping up to few cm -2 s -1, few fb -1 delivered 2030 Phase-II: High-luminosity LHC. New focussing magnets and CRAB cavities for very high luminosity with luminosity levelling Injector and LHC Phase-I upgrades to go to ultimate luminosity LHC shut-down to prepare machine for design energy and luminosity Run 4: Collect data until > 3000 fb -1 Run 3: Ramp up luminosity to 2.2 x design, reaching ~100 fb -1 / year accumulate few hundred fb -1 Run 2: Ramp up luminosity to design (10 34 cm -2 s -1 ), ~50 to 100 fb -1

Key message ‘Tomorrow’ There is a 20 years programme at the energy frontier with the LHC: 7 TeV 14 TeV design luminosity 14 TeV high luminosity (HL-LHC)

Glion Colloquium / June clear and exciting prospects clear and exciting prospects for the next two decades for the next two decades for the LHC and CERN for the LHC and CERN at the energy frontier at the energy frontier clear and exciting prospects clear and exciting prospects for the next two decades for the next two decades for the LHC and CERN for the LHC and CERN at the energy frontier at the energy frontier Accelerating Science and Innovation

Glion Colloquium / June beyond LHC ? beyond LHC ? CERN and the energy frontier CERN and the energy frontier beyond LHC ? beyond LHC ? CERN and the energy frontier CERN and the energy frontier Accelerating Science and Innovation

Road beyond Standard Model At the energy frontier through synergy of hadron - hadron colliders (LHC, HE-LHC?) lepton - hadron colliders (LHeC ??) lepton - lepton colliders (LC (ILC or CLIC) ?) (μ-collider ???) Next decades LHC results crucial for decisions at the energy frontier

HE-LHC – (33 TeV cms) 2-GeV Booster Linac4 SPS+, 1.3 TeV, 2030? HE-LHC 2030? July 23, 2011 S. Myers ECFA-EPS, Grenoble 17

CERN working group since April 2010 EuCARD AccNet workshop HE-LHC’10, October 2010, Proc. CERN key topics beam energy 16.5 TeV; 20-T magnets cryogenics: synchrotron-radiation heat radiation damping & emittance control vacuum system: synchrotron radiation new injector: energy > 1 TeV parameters High Energy-LHC (HE-LHC) LHCHE-LHC beam energy [TeV]716.5 dipole field [T] dipole coil aperture [mm]5640 #bunches IP beta function [m]0.551 (x), 0.43 (y) number of IPs32 beam current [A] SR power per ring [kW] arc SR heat load dW/ds [W/m/ap] peak luminosity [10 34 cm -2 s -1 ] events per crossing1976 E. Todesco hybrid magnet July 23, 2011 S. Myers ECFA-EPS, Grenoble 18

19 Lepton – Hadron Collider LHeC

Determining Leptoquark Quantum Numbers Single production gives access to quantum numbers: - fermion number (below) - spin (decay angular distributions) - chiral couplings (beam lepton polarisation asymmetry)

LHeC options: RR and LR RR LHeC: new ring in LHC tunnel, with bypasses around experiments RR LHeC e-/e+ injector 10 GeV, 10 min. filling time LR LHeC: recirculating linac with energy recovery, or straight linac Frank Zimmermann, UPHUK4 Bodrum 2010 July 23, 2011 S. Myers ECFA-EPS, Grenoble 21

22 Lepton – Lepton Colliders

23 Linear Colliders: ILC / CLIC Both projects are global endeavours Wide range of Physics Topics, e.g. Higgs (self) couplings Z, W, Top studies new physics

July 23, 2011 S. Myers ECFA-EPS, Grenoble 24

25 High Priority Items for Linear Collider Projects ILC and CLIC projects  LC project Construction Cost Power Consumption Value Engineering

26 Muon Collider

CLIC conceptual design report by 2012 Participation in all LC activities LHeC conceptual design report 2011/early2012 R&D for high-field magnets (towards HE-LHC) Generic R&D (high-power SPL, Plasma Acc) 27 CERN today….into the future

Update of the European Strategy for Particle Physics in 2012/13 - Several Meetings with international participation  bottom-up process: community input requested - Finalization: May/June 2013 Started with the ICFA Seminar 3-6 October 2011 at CERN Use as 1 st step to harmonize globally Particle Physics Strategy 28 from Choices ? to Choice !

Results from LHC will guide the way We are NOW in a new exciting era of accelerator planning-design-construction-running and need intensified efforts on R&D and technical design work to enable these decisions global collaboration and stability on long time scales (don‘t forget: first workshop on LHC was 1984)  more coordination and more collaboration required 29

CERN: opening the door… Membership for Non-European countries New Associate Membership defined Romania in accession to membership Israel now Associate Member in accession to Membership Negotiations started with Cyprus, Serbia, Slovenia, and Turkey concerning membership Several countries expressed interest in Associate Membership CERN participation in global projects independent of location

In summary By year 2013, experimental results will be dictating the agenda of the field. Early discoveries will greatly accelerate the case for the construction of the next facilities (Linear Collider, -factory, HE-LHC…) No time to idle: a lot of work has to be done in the meantime

In summary We will need Flexibility Coordination Preparedness Visionary global policies

Thank you!...and a bit of luck!