Boosted H→bb− Tagger in Run II
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Pre-published on:
February 06, 2017
Published on:
April 19, 2017
Abstract
Many searches for Higgs bosons decaying to b quark pairs benefit from the increased Run II centre-of-mass energy by exploiting the boosted kinematic regime at large transverse momenta of the Higgs boson, where the two b-jets are merged into one large radius (R) jet. ATLAS uses a boosted H→bˉb tagger algorithm to separate Higgs signal from background processes (QCD, W and Z bosons, top quarks). The tagger takes as input a large R=1.0 jet with calibrated pseudorapidity, energy and mass scale. It employs b-tagging, Higgs candidate mass, and substructure information. The performance of several operating points in Higgs boson signal, QCD, and tˉt all-hadronic backgrounds are presented. Systematic uncertainties are evaluated so that this tagger can be used in analyses.
DOI: https://doi.org/10.22323/1.282.1129
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Copyright owned by the author(s) under the term of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Copyright owned by the author(s) under the term of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.