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My Vision. A Phenomenologist’s Reality List Comments on Tools and Analysis. Feedback. What works? PS describes n-jet emission well What doesn’t? Number of isolated charged tracks Gluon splitting a heavy flavor Essential for making progress. Prioritize.

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my vision

MyVision

A Phenomenologist’s

Reality List

Comments on Tools and Analysis

feedback
Feedback
  • What works?
    • PS describes n-jet emission well
  • What doesn’t?
    • Number of isolated charged tracks
    • Gluon splitting a heavy flavor

Essential for making progress

prioritize
Prioritize
  • Separate essential from esoteric
  • Wjjjjj or a good description of inclusive W production (PT of W)?
  • SM backgrounds or new physics particulars?
simple before complex
Simple before Complex
  • Parton level (basic topology)
  • Particle level (heavy flavor?)
  • Toy calorimeter (smearing effects)
  • Fast simulation (basic result)
  • Full simulation (hard core; important for final results)
communicating results
Communicating Results
  • Make data available in a short time (light sbottom? Wbb at Mbb=115 GeV?)
  • Public Fast Simulations
  • Don’t view theorists as the enemy. Include them in your analyses
  • Allow small groups to post preliminary results (hep-ex or hep-ph)

Chance of an error vs. positive feedback

searches
Searches
  • A priori strategies (e.g. SLEUTH) look promising
    • e+e-gg ET conundrum: the probability of something unusual is hard to estimate
  • However …
    • Exclusive final states are sensitive to object definitions
    • How to account for correlated signals?

WW(gg) a12 ejj for 1 ee (gg)

  • It is okay to test specific models!
proceed without prejudice
Proceed without Prejudice
  • Exploit LEP experience
  • Test LHC Monte Carlo analyses
  • Remember these mantras:
    • A heavy top quark cannot be found in Run I
    • Charm tagging is not possible
  • When you consider:
    • Top quark “tagging”
    • Tau lepton identification
warm ups
Warm Ups
  • Blind-folded analyses
    • Analyze mixtures of fake data and signal
    • Expose biases and possible surprises
    • How to do this in a fair way?
      • Prepare SHW formatted objects?
      • Binaries that only output stable particles?
      • Will accept suggestions, disk space, etc.
  • Prepare kinematic templates for gluino signals, etc.

~

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