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