Reconstruction of the Higgs mass in events with Higgs bosons decaying into a pair of <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si0532.gif" overflow="scroll"><mml:mi>τ</mml:mi></mml:math> leptons using matrix element techniques
Lorenzo BianchiniInstitute for Particle Physics, ETH Zurich, 8093 Zurich, SwitzerlandBetty CalpasNational Institute for Chemical Physics and Biophysics, 10143 Tallinn, EstoniaJ. ConwayDepartment of Physics, University of California, Davis, CA 95616, USAAndrew FowlieARC Centre of Excellence for Particle Physics at the Tera-scale, Monash University, Melbourne, Victoria 3800, AustraliaLuca MarzolaInstitute of Physics, University of Tartu, 50411 Tartu, EstoniaLucia PerriniNational Institute for Chemical Physics and Biophysics, 10143 Tallinn, EstoniaChristian VeelkenCERN, 1211 Geneva, Switzerland
2017en
ABI
Аннотация
We present an algorithm for the reconstruction of the Higgs mass in events with Higgs bosons decaying into a pair of τ leptons. The algorithm is based on matrix element (ME) techniques and achieves a relative resolution on the Higgs boson mass of typically 15–20%. A previous version of the algorithm has been used in analyses of Higgs boson production performed by the CMS collaboration during LHC Run 1. The algorithm is described in detail and its performance on simulated events is assessed. The development of techniques to handle τ decays in the ME formalism represents an important result of this paper.
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