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Flavour Tagging with Jet Substructure

<!--HTML-->Jets are collimated bunches of hadrons ubiquitous in the detectors at the LHC. Studying the internal structure of these objects is essential to identify the original objects that originate the jet and to understand the underlying physical process. An important category of Jet Substr...

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Detalles Bibliográficos
Autor principal: Caletti, Simone
Lenguaje:eng
Publicado: 2022
Materias:
Acceso en línea:http://cds.cern.ch/record/2807204
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author Caletti, Simone
author_facet Caletti, Simone
author_sort Caletti, Simone
collection CERN
description <!--HTML-->Jets are collimated bunches of hadrons ubiquitous in the detectors at the LHC. Studying the internal structure of these objects is essential to identify the original objects that originate the jet and to understand the underlying physical process. An important category of Jet Substructure (JSS) observables are *Jet Angularities* which have been recently calculated in resummed perturbation theory [1, 2] and measured in the Z+Jet and dijet processes at the LHC. In this talk I will discuss how Jet Angularities can be exploited to define an infrared and collinear safe jet flavour tagger considering a recently proposed [3] application in the context of the Z+Jet process. In particular, by tagging the final state jet as quark-initiated we have been able to enhance the initial-state gluon contribution. I discuss new resummed theoretical predictions for the transverse momentum distributions of events selected by the tagger which would be potentially interesting to probe the gluonic degrees of freedom of the colliding protons.
id cern-2807204
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2022
record_format invenio
spelling cern-28072042022-11-02T22:04:44Z http://cds.cern.ch/record/2807204 eng Caletti, Simone Flavour Tagging with Jet Substructure Standard Model at the LHC 2022 Conferences <!--HTML-->Jets are collimated bunches of hadrons ubiquitous in the detectors at the LHC. Studying the internal structure of these objects is essential to identify the original objects that originate the jet and to understand the underlying physical process. An important category of Jet Substructure (JSS) observables are *Jet Angularities* which have been recently calculated in resummed perturbation theory [1, 2] and measured in the Z+Jet and dijet processes at the LHC. In this talk I will discuss how Jet Angularities can be exploited to define an infrared and collinear safe jet flavour tagger considering a recently proposed [3] application in the context of the Z+Jet process. In particular, by tagging the final state jet as quark-initiated we have been able to enhance the initial-state gluon contribution. I discuss new resummed theoretical predictions for the transverse momentum distributions of events selected by the tagger which would be potentially interesting to probe the gluonic degrees of freedom of the colliding protons. 2022
spellingShingle Conferences
Caletti, Simone
Flavour Tagging with Jet Substructure
title Flavour Tagging with Jet Substructure
title_full Flavour Tagging with Jet Substructure
title_fullStr Flavour Tagging with Jet Substructure
title_full_unstemmed Flavour Tagging with Jet Substructure
title_short Flavour Tagging with Jet Substructure
title_sort flavour tagging with jet substructure
topic Conferences
url http://cds.cern.ch/record/2807204
work_keys_str_mv AT calettisimone flavourtaggingwithjetsubstructure
AT calettisimone standardmodelatthelhc2022