CERN Long-Term Plan
description
Transcript of CERN Long-Term Plan
Glion Colloquium / June 20091
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
)ln(,)( 2
W
h
W
t
MM
MM
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 usinto unexplored territory:
Excellent progressAccelerator – 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 (114 - 600 GeV) will either be
discovered or excluded until
end 2012
SM Higgs Search Prospects (Mass in GeV) ATLAS + CMS
≈ 2 x CMS 95% CL
exclusion3 s
sensitivity 5 s
sensitivity
1 fb-1 120 - 530 135 - 475 152 - 1752 fb-1 114 - 585 120 - 545 140 - 2005 fb-1 114 - 600 114 - 600 128 - 48210 fb-1 114 - 600 114 - 600 117 - 535
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
~2021/22
2017 or 18
2013/14
2009 Start of LHC
Run 1: 7 TeV centre of mass energy, luminosity ramping up to few 1033 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 (1034 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 TeV14 TeV design luminosity14 TeV high luminosity (HL-LHC)
Glion Colloquium / June 2009 14
clear and exciting prospects for the next two decades for the LHC and CERN at the energy frontier
Accelerating Science and Innovation
Glion Colloquium / June 200915
beyond LHC ?
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 2010EuCARD AccNet workshop HE-LHC’10 , 14-16 October 2010, Proc. CERN-2011-003key topicsbeam energy 16.5 TeV; 20-T magnetscryogenics: synchrotron-radiation heatradiation damping & emittance controlvacuum system: synchrotron radiationnew injector: energy > 1 TeVparameters
High Energy-LHC (HE-LHC)
0
20
40
60
80
0 20 40 60 80 100 120
y (m
m)
x (mm)
HTS
HTS
HTS
Nb3Sn
Nb3Sn
Nb3Sn
Nb3Sn
Nb-Ti
Nb-Ti
Turns %Nb-Ti 40 28%Nb3Sn 58 41%HTS 45 31%
LHC HE-LHCbeam energy [TeV] 7 16.5dipole field [T] 8.33 20dipole coil aperture [mm] 56 40#bunches 2808 1404IP beta function [m] 0.55 1 (x), 0.43 (y)number of IPs 3 2beam current [A] 0.584 0.328SR power per ring [kW] 3.6 65.7arc SR heat load dW/ds [W/m/ap] 0.21 2.8peak luminosity [1034 cm-2s-1] 1.0 2.0events per crossing 19 76
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 LRRR LHeC:new ring in LHC tunnel,with bypassesaround experiments
RR LHeCe-/e+ injector10 GeV,10 min. filling time
LR LHeC:recirculatinglinac withenergy recovery,or straightlinac
Frank Zimmermann, UPHUK4 Bodrum 2010July 23, 2011S. 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 1st 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, n-factory, HE-LHC…)
No time to idle: a lot of work has to be done in the meantime
In summary
We will needFlexibilityCoordinationPreparednessVisionary global policies
Thank you!
...and a bit of luck!