Other Opportunities for SLAC in the Linear Collider Era SLAC Scenarios Study Kickoff Feb. 24, 2003 Lance Dixon

What will SLAC look like in 5-20 years? “Always looking to the future, we pick up bad habits of anticipation” -Philip Larkin The “part B” committee Lance Dixon John Seeman (co-chairs) Pat Burchat (Stanford) Eric Colby JoAnne Hewett Bob Jacobsen (Berkeley) Steve Kahn (Columbia -> SLAC) Homer Neal (Yale) Bruce Schumm (UCSC) Su Dong Tom Himel Persis Drell (ex-officio)

Some potential opportunities  On-site accelerator-based particle physics  Super B factory  Gamma-gamma collider: Higgs “shop”  Mega-to-Giga Z factory  Advanced Accelerator R&D  Other  Particle astrophysics & off-site/nonaccel. options  Particle astrophysics post GLAST  EXO  Other neutrino options  LHC upgrades  Other

Educating ourselves  We need input from you!  Now is the time for creative ideas of all sorts  Particularly important to brainstorm ideas for accelerator-based particle physics  Maximize “bang-to-buck” ratio  We will hold “days” devoted to major themes, 2-3 talks from experts, plenty of discussion time  What is the physics?  What are the technical requirements?  What are the possible roles for SLAC?  Web broadcast of talks  Schedule “days” in March & April if possible

“B day”  The flavor physics landscape in the LC era  Bob Cahn  Physics & detector issues at a super B factory  Dave Hitlin  Machine options  John Seeman  Mike Sullivan  Possible dates: March 20 or April 2

“Neutrino day”  The neutrino mass/mixing landscape in the LC era  Boris Kayser  Long-baseline oscillation opportunities  Gary Feldman  Other underground science  ???  Possible date: April 18

Other events  Orion workshop (last week): facility for advanced accelerator designs (laser, plasma, lab astrophysics)  Super B factory workshop (May 8-10)

Next phases of study  May-June:  Identify some representative opportunities  Estimate resource requirements  Roundtable with users & staff to discuss what has been learned, identify areas needing more study  Report to SLAC SPC, solicit their input  Part C of study (July-Sept.): Understand how options will fit together with each other, and (most importantly) with SLAC’s role in the linear collider (part A)

Conclusions  SLAC’s character will change over the next 5-20 years.  What do we want it to look like?  We need your input  Now (brainstorming)  Later (which scenarios should be considered in most depth?)