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Search for vector like quarks

Vector-like quarks (VLQ) are predicted by many beyond the Standard Model theories. They have the same left- and right-handed SU(2) quantum numbers and can have Flavor-Changing Neutral Currents at tree level. If the Higgs sector is not changed the VLQs can be isospin singlets, doublets or triplets an...

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Autor principal: Dias DO Vale, Tiago
Lenguaje:eng
Publicado: 2020
Materias:
Acceso en línea:http://cds.cern.ch/record/2706262
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author Dias DO Vale, Tiago
author_facet Dias DO Vale, Tiago
author_sort Dias DO Vale, Tiago
collection CERN
description Vector-like quarks (VLQ) are predicted by many beyond the Standard Model theories. They have the same left- and right-handed SU(2) quantum numbers and can have Flavor-Changing Neutral Currents at tree level. If the Higgs sector is not changed the VLQs can be isospin singlets, doublets or triplets and can decay via charged (W) or neutral currents (H, Z). In this talk a search for pair-production of vector-like quarks T and B with a leptonically decaying Z boson will be presented, with data collected by the ATLAS detector at the Large Hadron Collider. This search targets events that contain a pair of opposite-sign same-flavour leptons, and at least a third generation quark, which would arise from the VLQ decay. The lepton pair is selected to form a Z candidate, with the boosted regime being explored in order to target high VLQ masses.
id cern-2706262
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2020
record_format invenio
spelling cern-27062622020-01-13T23:22:11Zhttp://cds.cern.ch/record/2706262engDias DO Vale, TiagoSearch for vector like quarksParticle Physics - ExperimentVector-like quarks (VLQ) are predicted by many beyond the Standard Model theories. They have the same left- and right-handed SU(2) quantum numbers and can have Flavor-Changing Neutral Currents at tree level. If the Higgs sector is not changed the VLQs can be isospin singlets, doublets or triplets and can decay via charged (W) or neutral currents (H, Z). In this talk a search for pair-production of vector-like quarks T and B with a leptonically decaying Z boson will be presented, with data collected by the ATLAS detector at the Large Hadron Collider. This search targets events that contain a pair of opposite-sign same-flavour leptons, and at least a third generation quark, which would arise from the VLQ decay. The lepton pair is selected to form a Z candidate, with the boosted regime being explored in order to target high VLQ masses.ATL-PHYS-SLIDE-2020-013oai:cds.cern.ch:27062622020-01-13
spellingShingle Particle Physics - Experiment
Dias DO Vale, Tiago
Search for vector like quarks
title Search for vector like quarks
title_full Search for vector like quarks
title_fullStr Search for vector like quarks
title_full_unstemmed Search for vector like quarks
title_short Search for vector like quarks
title_sort search for vector like quarks
topic Particle Physics - Experiment
url http://cds.cern.ch/record/2706262
work_keys_str_mv AT diasdovaletiago searchforvectorlikequarks