Investigating kinematic fit to improve sensitivity to Di-Higgs searches with the ATLAS detector

A possibility of improving sensitivity to di-Higgs searches with kinematic fit is investigated using Monte Carlo samples at a centre-of-mass energy of 13 TeV. The decay mode investigated is $b\overline{b} {W} {W}^{*}$ with the final state $b\overline{b} l \nu qq$. An improvement in sensitivity of ab...

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Detalles Bibliográficos
Autores principales: Joshi, Roshan, Kagan, Harris, Roe, Shaun, Shrestha, Suyog
Lenguaje:eng
Publicado: 2019
Materias:
Detectors and Experimental Techniques
Particle Physics - Experiment
Acceso en línea:http://cds.cern.ch/record/2686713
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author Joshi, Roshan
Kagan, Harris
Roe, Shaun
Shrestha, Suyog
author_facet Joshi, Roshan
Kagan, Harris
Roe, Shaun
Shrestha, Suyog
author_sort Joshi, Roshan
collection CERN
description A possibility of improving sensitivity to di-Higgs searches with kinematic fit is investigated using Monte Carlo samples at a centre-of-mass energy of 13 TeV. The decay mode investigated is $b\overline{b} {W} {W}^{*}$ with the final state $b\overline{b} l \nu qq$. An improvement in sensitivity of about 35% compared to the result published by the ATLAS collaboration is observed when a selection criterion on likelihood of $t\overline{t}$ is used. In addition, the hadronic top quark mass reconstruction is found to have better resolution when fitted quantities rather than the measured quantities are used.
id cern-2686713
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2019
record_format invenio
spelling cern-26867132019-09-30T06:29:59Zhttp://cds.cern.ch/record/2686713engJoshi, RoshanKagan, HarrisRoe, ShaunShrestha, SuyogInvestigating kinematic fit to improve sensitivity to Di-Higgs searches with the ATLAS detectorDetectors and Experimental TechniquesParticle Physics - ExperimentA possibility of improving sensitivity to di-Higgs searches with kinematic fit is investigated using Monte Carlo samples at a centre-of-mass energy of 13 TeV. The decay mode investigated is $b\overline{b} {W} {W}^{*}$ with the final state $b\overline{b} l \nu qq$. An improvement in sensitivity of about 35% compared to the result published by the ATLAS collaboration is observed when a selection criterion on likelihood of $t\overline{t}$ is used. In addition, the hadronic top quark mass reconstruction is found to have better resolution when fitted quantities rather than the measured quantities are used.CERN-STUDENTS-Note-2019-066oai:cds.cern.ch:26867132019-08-16
spellingShingle Detectors and Experimental Techniques
Particle Physics - Experiment
Joshi, Roshan
Kagan, Harris
Roe, Shaun
Shrestha, Suyog
Investigating kinematic fit to improve sensitivity to Di-Higgs searches with the ATLAS detector
title Investigating kinematic fit to improve sensitivity to Di-Higgs searches with the ATLAS detector
title_full Investigating kinematic fit to improve sensitivity to Di-Higgs searches with the ATLAS detector
title_fullStr Investigating kinematic fit to improve sensitivity to Di-Higgs searches with the ATLAS detector
title_full_unstemmed Investigating kinematic fit to improve sensitivity to Di-Higgs searches with the ATLAS detector
title_short Investigating kinematic fit to improve sensitivity to Di-Higgs searches with the ATLAS detector
title_sort investigating kinematic fit to improve sensitivity to di-higgs searches with the atlas detector
topic Detectors and Experimental Techniques
Particle Physics - Experiment
url http://cds.cern.ch/record/2686713
work_keys_str_mv AT joshiroshan investigatingkinematicfittoimprovesensitivitytodihiggssearcheswiththeatlasdetector
AT kaganharris investigatingkinematicfittoimprovesensitivitytodihiggssearcheswiththeatlasdetector
AT roeshaun investigatingkinematicfittoimprovesensitivitytodihiggssearcheswiththeatlasdetector
AT shresthasuyog investigatingkinematicfittoimprovesensitivitytodihiggssearcheswiththeatlasdetector

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