R Frey SLUO P6 1 LC Detector R&D, SLAC, and SLUO… pre-P5 meeting R. Frey, University of Oregon Detector R&D will have a huge positive impact on the physics program of the TeV-scale LC. We see how to make big steps in performance over the LEP/SLC generation of detectors. And there is additional untapped potential. These steps will “possibly” be crucial for elucidating the New Physics. Major labs and their users should play a meaningful role. Outline: • The LC challenges for detectors • Snapshots of some current R&D involving SLAC and users • SLAC as a center for LC R&D
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R Frey SLUO P6 1
LC Detector R&D, SLAC, and SLUO… pre-P5 meeting
R. Frey, University of Oregon
Detector R&D will have a huge positive impact on the physics program of the TeV-scale LC.
We see how to make big steps in performance over the LEP/SLC generation of detectors. And there is additional untapped potential.These steps will “possibly” be crucial for elucidating the New Physics.Major labs and their users should play a meaningful role.
Outline:•
The LC challenges for detectors•
Snapshots of some current R&D involving SLAC and users•
SLAC as a center for LC R&D
The TeV Scale –
What will it bring?
R Frey SLUO P6 2
H. MurayamaWe know there is New Physics, but we don’t know what it is.
The LHC will uncover (choose):a)all the New Physicsb)a known portionc)an unknown portion
Jet (hadronic) final states at LHC
Z -> JJ , Mass Resolution
dE (Calor)FragmentationUnderlying EventRadiationB = 4 T
LHC Study: Z→ 2 jetsD. Green, Calor2002
• FSR is the biggest effect.
• The underlying event is the second largest error (if cone R ~ 0.7).
• Calorimeter resolution is a minor effect.
σM / M ∼
13% without FSR
⇒ At the LC, the situation is reversed: Detection dominates.
⇒ Opportunity at the LC to significantly improve measurement of jets.
readout of Si stripsU. of Birmingham, CCLRC (UK), CERN
Manchester U., Lancaster U., DESY, TEMF TU Darmstadt, SLAC
Collimator wakefield
studies
U. of Oxford, Daresbury Lab, SLAC IP BPM studies (FONT)
Why a SLAC Center for R&D?•
It already is at some level…
SLAC-based activity should increase with the U.S. LC effort.
•
The presence of a LC on site!!Unique national/international capabilityDetector test beamsAccelerator instrumentation test beamsThe test beams are great (several personal experiences)
•
Well-defined position, time, and energyWith a LC bunch timing structure(!)
•
Local detector/instrumentation expertise and infrastructureElectronics groupHEP-related engineeringDetector expertsComputing facilities and simulation/software group