Moving Forward

1
Moving Forward

• Jim Siegrist, Berkeley
• ALCPG Meeting
• January 10, 2004

2
Outline

• Outreach
• LC Cosmos connection
• LC recent progress
• Next steps for the experimentalists
• Summary

3
New Paradigm on Outreach

• We are tuning our message to connect to our
  intended audiences, not so it sounds good to us.
• This is essential to build a solid foundation of
  support for the field/LC that will surpass
  administration boundaries/personalities.
• Concerns you may share
• The approach does not highlight my favorite
  physics gt dishonest
• The approach might not work

LC participants have been in the lead in the new
thinking- you must reach out to the rest of the
community and convince others!
4
LC Cosmos Connection

• We know from feedback from Congress and the
  public that connecting our physics to the cosmos
  sells.
• We know, for example, you dont sell cars just by
  the fact they are carsits what the public
  wants.

We need to exploit the Cosmos Connection!
5
LC-Cosmos ConnectionExample 1 Dark Matter

• Many of us know SUSY is right, and the lightest
  neutralino is the big-bang relic that is the Dark
  Matter.

• This is a great example of the LC-Cosmos
  connection we can agree upon
• to understand if the relic particle production
  makes sense, a complete picture of particle
  species interactions are needed at decoupling

Dark Matter

• detailed measurements of dark matter particle
  candidate properties at LHC/LC are needed to put
  the picture on a firm foundation
• underground experiments to directly detect the
  local halo will (eventually) confirm the picture
• gravitational lensing studies will map the
  large-scale dark matter distribution complete
  the picture

SUSY provides a comfortable theoretical framework
that allows us to speak with authority feel the
connection is genuine.
6
LC-Cosmos ConnectionExample 2 Dark Energy

• In the case of Dark Energy, no viable theoretical
  framework exists.
• We have to understand that this makes the
  situation more exciting to the public
  illustrates the limits of what we dont know.

• In my (experimentalist) opinion
• we dont understand the vacuum
• on the short scales, Higgs mechanism, acts
  condensate filling the vacuum
• on large scales, dark energy, acts funny
  property of the vacuum, possibly just ?
• These might be related!

The lack of any theoretical guidance cannot keep
us from exploiting the excitement!
7
A Return to Normal Science?

• We have no coherent model for gravity and QM.
• Clear standard model cannot accommodate what we
  see on the large scales.
• Important questions are on the horizon that well
  soon answer.

Experimentalists their tools take the lead in
this situation - reminiscent of the pre-standard
model era (I was very young)
Embrace the change!Transmit our excitement to
the public!
8
Recent LC Developments

• LC highest ranked mid-term priority by Secretary
  of Energy
• Important for long-term stability
• Moving toward an international organization
• Sanctioned by agencies, a crucial step on the
  path ahead
• Making a technology decision
• Necessary prerequisite for a focused, coherent,
  worldwide effort
• Steps toward a central design group
• Next crucial step toward realization of LC

We have navigated the transition from an idea to
an actual path forward on the LC it is now our
project to win or lose!
9
Next Steps for the LC Experimentalists

• Work with accelerator experts if at all possible
  for you.
• We must bring accelerator science back to the
  Universities.
• Its where the bulk of the costs will be in the
  project need a broad base of expertise.
• High luminosity gt integrated accelerator/experime
  nt
• Its fun, exciting, and now.
• Work with the outreach effort (Interactions.org
  site has a lot of info).
• Talk in your department about particle physics.
• Talk in your community to the public.
• Train yourself in how to be a better public
  speaker.
• Its fun and rewarding.

These contributions are essential for the success
of LC (and the field)!
10
Next Steps (2) Detector Designs

• Have the high level (energy, luminosity) LC
  accelerator specification agreed to by the
  international organization.
• Detector builders must now flow down high level
  science requirements to the design of individual
  detector components.
• Each design choice needs a firm connection to
  benchmark physics processes.
• Necessary, but not sufficient, to pass eventual
  hardball reviews.
• Necessary to give agencies/OMB confidence in the
  depth of our understanding.
• An understanding of how LC-Cosmos connection
  works also needed in more detail but might not
  drive the detector design.

We need well-documented solid analyses. Opinions
alone are not enough.
11
Next Steps (3) Who will do the work?

• Really a lot of full simulation work is needed to
  characterize the benchmark processes.
• Likely to be carried out by lots of part-time
  people, especially students.
• Prefer to see a low-overhead organization so
  that people can get up to speed quickly and make
  real contributions.
• US efforts need to be coherently showcased
  especially at the international meetings (e.g.
  LCWS Paris April 04) if the US is to advocate a
  leadership role in LC work.

Doing this effectively is a major challenge for
international LC the US effort.
12
Comment on Detector RD

• Agencies are starting to fund a modest level of
  detector RD.
• Detector can be realized with technologies we
  know about now.
• Given the time scales, some effort on far-out
  technologies seems appropriate.

• However, the clock is running, and design choices
  will be needed in the next few years

As on the accelerator, we need to position
ourselves to make the tough choices coming up!
13
Summary

• Be the vanguard of community connectivity
• Exploit the cosmos connection shamelessly
• Be proud of the Standard Model, but move on
• Contribute to LC Accelerator RD
• Contribute to outreach activities
• Do the homework on detector requirements

and be open to Divine intervention.
Be patientlarge projects take timeLC is on a
good path forward!