Reconstruction of High Transverse Momentum Top Quarks at CMS

High mass resonances decaying into ttbar pairs appear in many extensions of the Standard Model. The top quarks from these decays have high transverse momenta and their decay products are highly collimated due to the boost into the lab frame. As a result the standard techniques for reconstructing ttb...

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Detalles Bibliográficos
Autor principal: Giurgiu, Gavril
Lenguaje:eng
Publicado: 2009
Materias:
Particle Physics - Experiment
Acceso en línea:http://cds.cern.ch/record/1209363
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author Giurgiu, Gavril
author_facet Giurgiu, Gavril
author_sort Giurgiu, Gavril
collection CERN
description High mass resonances decaying into ttbar pairs appear in many extensions of the Standard Model. The top quarks from these decays have high transverse momenta and their decay products are highly collimated due to the boost into the lab frame. As a result the standard techniques for reconstructing ttbar events begin to fail. In this talk we discuss the prospects for detecting booted top quarks at CMS. A new top jet tagging algorithm is presented. This algorithm achieves an efficiency of 46% for boosted top jets and rejection of 98.5% for generic QCD jets with transverse momenta of 600 GeV/$c$.
id cern-1209363
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2009
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spelling cern-12093632023-03-15T19:11:43Zhttp://cds.cern.ch/record/1209363engGiurgiu, GavrilReconstruction of High Transverse Momentum Top Quarks at CMSParticle Physics - ExperimentHigh mass resonances decaying into ttbar pairs appear in many extensions of the Standard Model. The top quarks from these decays have high transverse momenta and their decay products are highly collimated due to the boost into the lab frame. As a result the standard techniques for reconstructing ttbar events begin to fail. In this talk we discuss the prospects for detecting booted top quarks at CMS. A new top jet tagging algorithm is presented. This algorithm achieves an efficiency of 46% for boosted top jets and rejection of 98.5% for generic QCD jets with transverse momenta of 600 GeV/$c$.High mass resonances decaying into ttbar pairs appear in many extensions of the Standard Model. The top quarks from these decays have high transverse momenta and their decay products are highly collimated due to the boost into the lab frame. As a result the standard techniques for reconstructing ttbar events begin to fail. In this talk we discuss the prospects for detecting booted top quarks at CMS. A new top jet tagging algorithm is presented. This algorithm achieves an efficiency of 46% for boosted top jets and rejection of 98.5% for generic QCD jets with transverse momenta of 600 GeV/$c$.arXiv:0909.4894oai:cds.cern.ch:12093632009-09-29
spellingShingle Particle Physics - Experiment
Giurgiu, Gavril
Reconstruction of High Transverse Momentum Top Quarks at CMS
title Reconstruction of High Transverse Momentum Top Quarks at CMS
title_full Reconstruction of High Transverse Momentum Top Quarks at CMS
title_fullStr Reconstruction of High Transverse Momentum Top Quarks at CMS
title_full_unstemmed Reconstruction of High Transverse Momentum Top Quarks at CMS
title_short Reconstruction of High Transverse Momentum Top Quarks at CMS
title_sort reconstruction of high transverse momentum top quarks at cms
topic Particle Physics - Experiment
url http://cds.cern.ch/record/1209363
work_keys_str_mv AT giurgiugavril reconstructionofhightransversemomentumtopquarksatcms

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