"QCD theory predicts and experiment confirms that particles emerge from hard collisions at hadron colliders in the form of narrow jets of particles. DESY had an important role in the history of the experimental part of this. Roughly, a jet consists of the decay products of a parton produced in the hard collision, but there are QCD corrections to this crude picture. To be more precise, one needs a precise definition of a jet. Again, DESY played a role in the development of jet definitions. I will review some of the definitions, emphasizing the role of infrared safety of the definition.
Jets contain smaller jets inside them. The substructure of jets is different for normal QCD jets and for jets produced by the decay of heavy particles like top quarks or the Higgs boson. I will review some of the recent ideas on how this difference in substructure can be used to help find non-QCD jets that may come from heavy objects that we hope to discover at the LHC."
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EVO connection:
Title: Analysis Centre Seminars
Description: Analysis Centre Seminars
Community: Terascale
Phone Bridge ID: 1312410
Meeting URL:
http://evo.vrvs.org/evoGate/koala.jnlp?meeting=MaMDMt222sDeDi9M98DI9a
