Missing energy look-alikes with 100pb-1 at the CERN LHC

Jay Hubisz, Joseph Lykken, Maurizio Pierini, Maria Spiropulu

Research output: Contribution to journalArticlepeer-review

53 Scopus citations


A missing energy discovery is possible at the LHC with the first 100pb-1 of understood data. We present a realistic strategy to rapidly narrow the list of candidate theories at, or close to, the moment of discovery. The strategy is based on robust ratios of inclusive counts of simple physics objects. We study specific cases showing discrimination of look-alike models in simulated data sets that are at least 10 to 100 times smaller than used in previous studies. We discriminate supersymmetry models from nonsupersymmetric look-alikes with only 100pb-1 of simulated data, using combinations of observables that trace back to differences in spin.

Original languageEnglish (US)
Article number075008
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Issue number7
StatePublished - Oct 9 2008
Externally publishedYes

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Physics and Astronomy (miscellaneous)


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