University M

1
University MO Personnel

• University with major hardware responsibility at
  CERN
• Based on gt 10 years of US Zeus experience
• Ph.D. Physicists (2)
• Responsible for daily hardware operations
• Calibration, monitoring, analysis, diagnostics,
  repairs, test facilities
• Work with, supervise and train students on
  hardware duties
• Coordination with rest of experiment
• Physics Analysis and supervision of student
  physics analyses
• Studies, RD and eventual work on upgrades
• Students (6)
• Beginning (2)
• Learning, serve on hardware shifts
• Intermediate (2)
• Responsible for hardware shifts, begin physics
  analysis
• Senior (2)
• Released for thesis work, available for
  consultation, assistance, shifts
• Graduated Next generation of LHC Postdocs

2
LHC Upgrades

• 2010-2015 SLHC
• Increase Luminosity x 10 to 1035
• Decrease Bunch Crossing Interval x2 to 12.5 ns
• Detector changes performance studied for this.
• gt2015 Energy Upgrade?
• Increase LHC beam energy to 14 TeV (Ecm 28 TeV)
• Replace LHC dipoles magnets with a nominal
  dipole field btw. 16.0 and 16.5 T, would provide
  1-2 T safety
• Equip SPS with superconducting magnets inject
  into LHC at 1 TeV
• Long term future for the program

3
SLHC Physics - I

• Electroweak
• 4 gauge boson final states triple boson
  production in boson-boson fusion observable
• Test of quintuple couplings (vanish in SM)
• Measure Triple, Quadruple Gauge boson Couplings
• TGC parameters in range (0.001) expected from SM
  Radiative Corrections.
• QGC parameter limits improve up to x 2.5 over LHC
• Higgs Physics
• H (100-160 GeV)?Z? measured at 11s level
• gg ? H (120-140 GeV) ? mm seen at 5s level
• Couplings to fermions, bosons measured at 10
  precision
• gg ? HH (170-200 GeV) Higgs self couplings 20
  precision

4
SLHC Physics - II

• Higgs Searches
• Regions of the MSSM parameter space where the
  various Higgs bosons can be discovered at ? 5? at
  the LHC (for 300 fb-1 per experiment and both
  experiments combined) through their decays into
  SM particles.
• To the left of the rightmost contour at least two
  Higgs bosons can be discovered at the SLHC (for
  3000 fb-1 per experiment and both experiments
  combined).

5
SLHC Physics - III

• Strongly Coupled Vector Bosons
• WLZL resonance at 1.5 TeV observable
• ZLZL resonance at 750 GeV observable
• Rare Top Decays
• Improved sensitivity t? qg qg (x4), qZ (x10)
• New Gauge Bosons
• Discovery Reach 5.3 TeV (LHC) ? 6.5 TeV (SLHC)
• SUSY
• squarks, gluinos 2.5 TeV (LHC) ? 3 TeV (SLHC)
• Extra Dimensions
• Resonances 6 TeV (LHC) ? 7.7 TeV (SLHC)

6
SLHC Detector RD - I

• Inner Tracker rebuild
• r lt 20 cm new approach, 20 lt r lt 60 cm extend
  pixel technology, 60 cm lt r extend strip
  technology
• New approaches defect-engineered Si, 3D
  detectors, new sensor materials, cryogenic Si,
  monolithic pixels
• Calorimetry usable with caveats
• ATLAS (Liquid Argon) space charge, HV
  distribution
• Investigate alternative liquids (krypton, cold
  dense gas)
• CMS (xtal ECAL, scint. HCAL) Endcap scint.
  Damage
• Investigate more radiation tolerant scintillator
• Modify readout trigger electronics for crossing
  ID
• Muon Systems usable up to high h
• Replace front end readout trigger electronics
• Additional Shielding needed

7
SLHC Detector RD - II

• Trigger rebuild for 12.5 ns
• Double operational frequency from 40 MHz to 80
  MHz
• Processing data transfer
• Design for much higher rejection power for pileup
  to retain output rate of 100 kHz
• Exploit newer generation programmable devices
• DAQ evolve to higher performance
• Increase in bandwidth due to increase in event
  size.
• Use new commercial network technologies
• Issue Control management of 10K CPU farms.