P5 Meeting - Jan. 28-29, 2003 1

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LHC University M&O PersonnelUniversity M&O PersonnelUniversity M&O PersonnelUniversity M&O Personnel

University with major hardware responsibility at CERN• Based on > 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, R&D 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

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LHC LHC UpgradesLHC UpgradesLHC UpgradesLHC 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.

>2015: 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

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LHC SLHC Physics - ISLHC Physics - ISLHC Physics - ISLHC 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 11 level

• gg H (120-140 GeV) seen at 5level

• Couplings to fermions, bosons measured at 10% precision

• gg HH (170-200 GeV): Higgs self couplings ~20% precision

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LHC SLHC Physics - IISLHC Physics - IISLHC Physics - IISLHC Physics - IIHiggs 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).

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LHC SLHC Physics - IIISLHC Physics - IIISLHC Physics - IIISLHC 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 qqg (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)

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LHC SLHC Detector R&D - ISLHC Detector R&D - ISLHC Detector R&D - ISLHC Detector R&D - I

Inner Tracker: rebuild• r < 20 cm: new approach, 20 < r < 60 cm: extend pixel

technology, 60 cm < 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 • Replace front end readout & trigger electronics

• Additional Shielding needed

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LHC SLHC Detector R&D - IISLHC Detector R&D - IISLHC Detector R&D - IISLHC Detector R&D - 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.