A Vision for the Year 20-20

Is there life in HEP after LHC/LC?

R. Sekhar ChivukulaMichigan State University

Goals of High-Energy Physics• What do we do?

– We “explore the frontiers of matter, energy, space and time.”

• How do we do it? – By probing matter at the shortest

accessible distance scales, and by examining matter with the highest possible precision.

Precision is not Sufficient!

A Vision for HEP in 2020• HEP should be a vibrant field of inquiry,• and must have international facilities to

both– examine matter with the highest possible precision

and– probe it at the shortest possible distance scales.

Distance scale to be probed: (10 TeV)-1

VLHC

Prospects and Challenges

• Physics at 10 TeV

• Building* the VLHC

• Detectors* at the VLHC

• Image of HEP

• Resources for HEP

• How do we get from here to there?

*See talks by Peter Limon, Dmitri Denisov, Jay Hauser, Mike Albrow, Nikolai Mokhov…

Physics at 10 TeV• Possible Views from (1 TeV)-1

– SUSY– Strong Dynamics/Technicolor– Composite/Little Higgs– Extra Dimensions

• AdS/CFT: the desert blooms

cf. talk by Tao Han

SUSY

What breaks SUSY softly? What are the masses of the superpartners?

cf. talk by Ian Hinchliffe

“Low-Scale” SUSY Breaking Messengers could appear at 10 TeV

Strong Dynamics/Technicolor

cf. talk by Ken Lane

We know too much … this simplest theory is ruled out!

The LHC is not sufficient…

Gold-Plated Modes

Composite/Little Higgs

cf. talk by Graham KribsFrom M.Schmaltz hep-ph/0210415

Extra Dimensions

cf. talk by Gian Giudice

As inspired by AdS/CFT conjecture: a weakly coupled QFT in this space dual to one in 4-d coupled to a large-N strongly-coupled conformal field theory….

“Higgless” Symmetry Breaking = Walking Technicolor

Csaki, et. al. hep-ph/0305237, 0308038

AdS/CFT: The Desert Blooms

HEP remains an experimental science!

Blurry Vision

“Not only is the universe stranger than we imagine, it is stranger than we can imagine.”

Sir Arthur Eddington

“There are more things in heaven and earth, Horatio, than are dreamt of in our

philosophy.” Shakespeare, Hamlet, act 1, sc. 5,

l.

Image of HEP

http://www.whitehouse.gov/omb/budget/fy2004/pma/highenergy.pdf

P. Looney, OSTP @ HEPAP 7/03

Resources for US HEP

How do we get there from here?

• Successfully complete Tevatron Run II andinitial phase of LHC physics program

• Articulate LHC (luminosity?) upgrade program

• Build an International Linear Collider – “on-time and on-budget”

and concurrently…• Continue R&D for VLHC and Detectors

• Repair Image of HEP in US and World• Maintain critical mass of students and postdocs• Complete the physics case for VLHC• Learn how to build the accelerator and detectors

The Lorax

The Cosmic Connection“I ask you to look both ways. For the road to a knowledge of the stars leads through theatom; and important

knowledgeof the atom has been reachedthrough the stars.”

Sir Arthur Eddington, Stars and Atoms (1928)

cf. talk by Mike Turner

“All science is either physics or stamp collecting.” Ernest Rutherford

Be not afraid of growing slowly, be afraid only of standing still.

Chinese Proverb