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During his short-term studentship from October to December 2010 at UCL in London, Christian Röhr examined the Higgs/subjet analysis technique for the Higgs search at the LHC. First, general properties of the subjet technique were studied in Monte-Carlo analyses. The second and main part of the work focussed on studying the impact of pile-up on subjet analyses, i.e. of additional radiation due to secondary simultaneous proton-proton interactions. During the studentship a program for simulating pile-up events at event-generator level was written. This program allows to superimpose HepMC events generated with different Monte-Carlo event generators. The code is publicly available (http://pilemc.hepforge.org/) for further pile-up research at the LHC and at future colliders.
Node: 
UCL
Student: 
Christian Roehr
Date: 
October, 2010 to December, 2010