Search for massive supersymmetric particles decaying to many jets using the ATLAS detector in pp collisions at √s =8 TeV

Results of a search for decays of massive particles to fully hadronic final states are presented. This search uses 20.3 fb-1 of data collected by the ATLAS detector in √s=8 TeV proton-proton collisions at the LHC. Signatures based on high jet multiplicities without requirements on the missing transv...

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Detalles Bibliográficos
Autores principales: Alconada Verzini, María Josefina, Alonso, Francisco, Anduaga, Xabier Sebastián, Arduh, Francisco Anuar, Dova, María Teresa, Monticelli, Fernando Gabriel, Wahlberg, Hernán Pablo, The ATLAS Collaboration
Formato: Articulo
Lenguaje:Inglés
Publicado: 2015
Materias:
Física
Parity
Neutrinos
Neutrino masses
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/85948
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-85948
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Física
Parity
Neutrinos
Neutrino masses
spellingShingle Física
Parity
Neutrinos
Neutrino masses
Alconada Verzini, María Josefina
Alonso, Francisco
Anduaga, Xabier Sebastián
Arduh, Francisco Anuar
Dova, María Teresa
Monticelli, Fernando Gabriel
Wahlberg, Hernán Pablo
The ATLAS Collaboration
Search for massive supersymmetric particles decaying to many jets using the ATLAS detector in pp collisions at √s =8 TeV
topic_facet Física
Parity
Neutrinos
Neutrino masses
description Results of a search for decays of massive particles to fully hadronic final states are presented. This search uses 20.3 fb-1 of data collected by the ATLAS detector in √s=8 TeV proton-proton collisions at the LHC. Signatures based on high jet multiplicities without requirements on the missing transverse momentum are used to search for R-parity-violating supersymmetric gluino pair production with subsequent decays to quarks. The analysis is performed using a requirement on the number of jets, in combination with separate requirements on the number of b-tagged jets, as well as a topological observable formed from the scalar sum of the mass values of large-radius jets in the event. Results are interpreted in the context of all possible branching ratios of direct gluino decays to various quark flavors. No significant deviation is observed from the expected Standard Model backgrounds estimated using jet counting as well as data-driven templates of the total-jet-mass spectra. Gluino pair decays to ten or more quarks via intermediate neutralinos are excluded for a gluino with mass mg<1 TeV for a neutralino mass mχ10=500 GeV. Direct gluino decays to six quarks are excluded for mg<917 GeV for light-flavor final states, and results for various flavor hypotheses are presented.
format Articulo
Articulo
author Alconada Verzini, María Josefina
Alonso, Francisco
Anduaga, Xabier Sebastián
Arduh, Francisco Anuar
Dova, María Teresa
Monticelli, Fernando Gabriel
Wahlberg, Hernán Pablo
The ATLAS Collaboration
author_facet Alconada Verzini, María Josefina
Alonso, Francisco
Anduaga, Xabier Sebastián
Arduh, Francisco Anuar
Dova, María Teresa
Monticelli, Fernando Gabriel
Wahlberg, Hernán Pablo
The ATLAS Collaboration
author_sort Alconada Verzini, María Josefina
title Search for massive supersymmetric particles decaying to many jets using the ATLAS detector in pp collisions at √s =8 TeV
title_short Search for massive supersymmetric particles decaying to many jets using the ATLAS detector in pp collisions at √s =8 TeV
title_full Search for massive supersymmetric particles decaying to many jets using the ATLAS detector in pp collisions at √s =8 TeV
title_fullStr Search for massive supersymmetric particles decaying to many jets using the ATLAS detector in pp collisions at √s =8 TeV
title_full_unstemmed Search for massive supersymmetric particles decaying to many jets using the ATLAS detector in pp collisions at √s =8 TeV
title_sort search for massive supersymmetric particles decaying to many jets using the atlas detector in pp collisions at √s =8 tev
publishDate 2015
url http://sedici.unlp.edu.ar/handle/10915/85948
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