Search for down-type fourth generation quarks with the ATLAS detector in events with one lepton and hadronically decaying W bosons

This Letter presents a search for pair production of heavy down-type quarks decaying via b ′→Wt in the lepton+jets channel, as b′b' ̄′→W¯tW +t̄→bb̄W +W¯W +W¯ -→l ±νbb̄qq̄qq̄qq̄. In addition to requiring exactly one lepton, large missing transverse momentum, and at least six jets, the invariant...

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Detalles Bibliográficos
Autores principales: Anduaga, Xabier Sebastián, Dova, María Teresa, Monticelli, Fernando Gabriel, Tripiana, Martín F.
Formato: Articulo
Lenguaje:Inglés
Publicado: 2012
Materias:
Física
quarks
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/84573
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-84573
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Física
quarks
spellingShingle Física
quarks
Anduaga, Xabier Sebastián
Dova, María Teresa
Monticelli, Fernando Gabriel
Tripiana, Martín F.
Search for down-type fourth generation quarks with the ATLAS detector in events with one lepton and hadronically decaying W bosons
topic_facet Física
quarks
description This Letter presents a search for pair production of heavy down-type quarks decaying via b ′→Wt in the lepton+jets channel, as b′b' ̄′→W¯tW +t̄→bb̄W +W¯W +W¯ -→l ±νbb̄qq̄qq̄qq̄. In addition to requiring exactly one lepton, large missing transverse momentum, and at least six jets, the invariant mass of nearby jet pairs is used to identify high transverse momentum W bosons. In data corresponding to an integrated luminosity of 1.04fb -1 from pp collisions at √s=7TeV recorded with the ATLAS detector, a heavy down-type quark with mass less than 480GeV can be excluded at the 95% confidence level.
format Articulo
Articulo
author Anduaga, Xabier Sebastián
Dova, María Teresa
Monticelli, Fernando Gabriel
Tripiana, Martín F.
author_facet Anduaga, Xabier Sebastián
Dova, María Teresa
Monticelli, Fernando Gabriel
Tripiana, Martín F.
author_sort Anduaga, Xabier Sebastián
title Search for down-type fourth generation quarks with the ATLAS detector in events with one lepton and hadronically decaying W bosons
title_short Search for down-type fourth generation quarks with the ATLAS detector in events with one lepton and hadronically decaying W bosons
title_full Search for down-type fourth generation quarks with the ATLAS detector in events with one lepton and hadronically decaying W bosons
title_fullStr Search for down-type fourth generation quarks with the ATLAS detector in events with one lepton and hadronically decaying W bosons
title_full_unstemmed Search for down-type fourth generation quarks with the ATLAS detector in events with one lepton and hadronically decaying W bosons
title_sort search for down-type fourth generation quarks with the atlas detector in events with one lepton and hadronically decaying w bosons
publishDate 2012
url http://sedici.unlp.edu.ar/handle/10915/84573
work_keys_str_mv AT anduagaxabiersebastian searchfordowntypefourthgenerationquarkswiththeatlasdetectorineventswithoneleptonandhadronicallydecayingwbosons
AT dovamariateresa searchfordowntypefourthgenerationquarkswiththeatlasdetectorineventswithoneleptonandhadronicallydecayingwbosons
AT monticellifernandogabriel searchfordowntypefourthgenerationquarkswiththeatlasdetectorineventswithoneleptonandhadronicallydecayingwbosons
AT tripianamartinf searchfordowntypefourthgenerationquarkswiththeatlasdetectorineventswithoneleptonandhadronicallydecayingwbosons
bdutipo_str Repositorios
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