Reconstruction of ttH, H → bb events using the matrix element method and substructure techniques

2018/12/20 by Maren Meinhard, Meinhard, Maren
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #High Energy Physics - Phenomenology (hep-ph) #hep-ex #hep-ph

paper · pdf · doi:10.48550/arxiv.1812.08458

arxiv created 2018/12/20 · arxiv updated 2018/12/21

Abstract

This contribution outlines the implementation of the matrix element method (MEM) in the search for ttH, H → bb events. In particular, the evaluation of the transfer functions, which relate detector level to parton level quantities in the computation of the MEM, is described. In addition, it is presented how jet substructure reconstruction can be combined with the MEM. The combination of these techniques leads to a decrease in computation time by up to 90% and an increase in event selection efficiency of 30% in the high Higgs boson and top quark p_T phase space.

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