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Glion Colloquium / June 20091
An Outlook from Europe
Accelerating Science and Innovation
R.-D. Heuer, CERN EPS-HEP, Grenoble, 27 July 2011
“Discovery” of Standard Model
At the energy frontier through synergy of
hadron - hadron colliders (e.g. Tevatron)
lepton - hadron colliders (HERA)
lepton - lepton colliders (e.g. LEP, SLC)
‘Yesterday’
possible due to • precision measurements • known higher order electroweak corrections
)ln(,)( 2
W
h
W
t
M
M
M
M
LEP
Test of the SM at the Level of Quantum Fluctuations
indirect determination of the top mass
prediction of the range for theHiggs mass
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
Solutions?
Higgs
Salam WeinbergGlashow
Extra DimensionsNew dimensions introduced
mGravity ≈ melw Hierarchy problem solved
New particles at ≈ TeV scale
SupersymmetryNew particles at ≈ TeV scale, light Higgs
Unification of forcesHiggs mass stabilizedNo new interactions
TechnicolorNew (strong) interactions produce
EWSB
Extensions of the SM gauge group :
Little Higgs / GUTs / …
Rubbia van der Meer
Veltman ‘t HooftGrossWilczekPolitzer
CroninFitch
Reines
PerlFriedman
Kendall
Taylor
LedermanSchwartz
Steinberger
Richter
Ting
Gell-MannAlvarezFeynman
Schwinger
Hofstadter
Yang Lee
Selected NP since 1957 Except P. Higgs
For all proposed solutions: new particles should appear
at TeV scale or below territory of the LHC
Exciting Times
At the energy frontier, the LHC brings us
into unexplored territory:
Excellent progress
Accelerator – Experiments – Grid
‘Today’
7
Key message (I)
LHC and the Standard Model
Finding the Higgs: Discovery
Excluding the Higgs: Discovery
Reminder:
LHC needs to clarify mechanism of electroweak symmetry breaking
Unique world-class fixed-target programme
• Already planned and approved experiments at the AD, n-TOF, Isolde, PS and SPS complexes including CNGS
• New projects– HIE-ISOLDE– ELENA– COMPASS2– Neutrino physics projects being investigated
8
CERN today….besides LHC
Key message (II)
‘Tomorrow’
There is a 20 years programme at the energy frontier with the LHC:
7 TeV14 TeV design luminosity14 TeV high luminosity (HL-LHC)
10
2022
LS3
Installation of the HL-LHC hardware(acceleratorand detector)
Not yet approved!
July 23, 2011 S. Myers ECFA-EPS, Grenoble
update of European HEP Roadmap
Plan to continue until around 2030
?
‘Beyond Tomorrow’
Energy Frontier beyond 14 TeV LHC
• CLIC conceptual design report by 2012• Participation in all LC activities
• LHeC conceptual design report 2011
• R&D for high-field magnets (towards HE-LHC)
• Generic R&D for a high-power SPL
12
CERN today….into the future
July 23, 2011S. Myers ECFA-EPS,
Grenoble13
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, 2011
S. Myers ECFA-EPS, Grenoble 14
HE-LHC – LHC modifications
2-GeV Booster
Linac4
SPS+,1.3 TeV, 2030-33
HE-LHC 2030-33
July 23, 2011S. Myers ECFA-EPS,
Grenoble15
16
Key message (III)
All these projects need continuing accelerator and detector R&D;
all these projects need continuing attention concerning a convincing physics case;
so that the right decision can be made when the time comes to identify the next energy frontier accelerator (collider). Today, we need to keep our choices open.
• Rich variety of projects under study
at the energy frontier
and the intensity frontier
• Global – Regional – National Projects
Need to present and discuss all these projects in an international context before making choices
Need to present physics case(s) always taking into account latest results at existing facilities
17
Choices ?
• Update of the European Strategy for Particle Physics in 2012
- Several Meetings with international participation
bottom-up process: your input needed
- increase coordination with astroparticle and nuclear community
• ICFA Seminar 3-6 October 2011 at CERN use as 1st step to harmonize Particle Physics
Strategy globally
18
Choices ? Choices !
Road beyond Standard Model
At the energy frontier through synergy of
hadron - hadron colliders (LHC, HL/HE-LHC?)
lepton - hadron colliders (LHeC ??)
lepton - lepton colliders (LC (ILC or CLIC) ?)
Next decades
LHC results will guide the way at the energy frontier
Results from LHC will guide the wayExpect period for decision enabling on next steps earliest 2012
(at least) concerning energy frontier (similar situation concerning neutrino sector Θ13)
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
20
Opening the door…
• Membership for Non-European countries• New Associate Membership defined• Romania in accession to membership• Negotiations started with Cyprus, Israel, Serbia,
Slovenia, and Turkey concerning membership• Several countries expressed interest in associate
membership
• CERN participation in global projects independent of location
We need to define the most appropriate organizational form
for global projects NOW and need to be open and inventive
(scientists, funding agencies, politicians. . .)
Mandatory to have accelerator laboratories in all regions
as partners in accelerator development / construction /
commissiong / exploitation
Planning and execution of HEP projects today need
global partnership for global, regional and national projects
in other words: for the whole program
Use the exciting times ahead to establish such a partnership
22
Past decades saw precision studies of 5 % of our Universe Discovery of the Standard Model
The LHC is running wellExperiments are delivering exciting resultsOther intriguing results, e.g. in neutrino physics
We are just at the beginning of exploring 95 % of the Universe
Past decades saw precision studies of 5 % of our Universe Discovery of the Standard Model
The LHC is running wellExperiments are delivering exciting resultsOther intriguing results, e.g. in neutrino physics
We are just at the beginning of exploring 95 % of the Universe
exciting prospects