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Neural networks for Higgs physics

  • Tentindo-Repond, S.
  • Prosper, H.B.
  • Bhat, P.C.
Publication Date
Oct 01, 2000
DOI: 10.1063/1.1405273
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The main application of neural networks (NN) in Higgs physics so far has been to optimize the signal over background ratio. The positive result obtained imply that the use of NN will lead to a big reduction in the integrated luminosity required for the discovery of the Higgs in RunII. Neural Networks have also been recently used in Higgs physics to set up tagging algorithms to identify the heavy flavor content of jets. Whereas in the previous studies the NN b-tagging methods used are channel-independent, a channel-dependent method has been used in the present work. The signal pp̄→WH→ l νbb̄ has been studied against the dominant background pp̄→Wbb̄, in an attempt to improve the signal over background ratio by trying to push the invariant mass of the background events further away from the signal. This result would get the equivalent effect of an improved mass resolution.

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