Search for supersymmetry in final states with two same-sign or three leptons and jets using 36 fb-1 of √s = 13 TeV pp collision data with the ATLAS detector

A search for strongly produced supersymmetric particles using signatures involving multiple energetic jets and either two isolated same-sign leptons (e or μ), or at least three isolated leptons, is presented. The analysis relies on the identification of b-jets and high missing transverse momentum to...

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Autores principales: Alconada Verzini, María Josefina, Alonso, Francisco, Arduh, Francisco Anuar, Dova, María Teresa, Hoya, Joaquín, Monticelli, Fernando Gabriel, Wahlberg, Hernán Pablo, The ATLAS Collaboration
Formato: Articulo
Lenguaje:Inglés
Publicado: 2017
Materias:
Ciencias Exactas
Física
hadron-hadron scattering
supersymmetry
large hadron collider
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/78565
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-78565
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Exactas
Física
hadron-hadron scattering
supersymmetry
large hadron collider
spellingShingle Ciencias Exactas
Física
hadron-hadron scattering
supersymmetry
large hadron collider
Alconada Verzini, María Josefina
Alonso, Francisco
Arduh, Francisco Anuar
Dova, María Teresa
Hoya, Joaquín
Monticelli, Fernando Gabriel
Wahlberg, Hernán Pablo
The ATLAS Collaboration
Search for supersymmetry in final states with two same-sign or three leptons and jets using 36 fb-1 of √s = 13 TeV pp collision data with the ATLAS detector
topic_facet Ciencias Exactas
Física
hadron-hadron scattering
supersymmetry
large hadron collider
description A search for strongly produced supersymmetric particles using signatures involving multiple energetic jets and either two isolated same-sign leptons (e or μ), or at least three isolated leptons, is presented. The analysis relies on the identification of b-jets and high missing transverse momentum to achieve good sensitivity. A data sample of proton-proton collisions at s√=13 TeV recorded with the ATLAS detector at the Large Hadron Collider in 2015 and 2016, corresponding to a total integrated luminosity of 36.1 fb−1, is used for the search. No significant excess over the Standard Model prediction is observed. The results are interpreted in several simplified supersymmetric models featuring R-parity conservation or R-parity violation, extending the exclusion limits from previous searches. In models considering gluino pair production, gluino masses are excluded up to 1.87 TeV at 95% confidence level. When bottom squarks are pair-produced and decay to a chargino and a top quark, models with bottom squark masses below 700 GeV and light neutralinos are excluded at 95% confidence level. In addition, model-independent limits are set on a possible contribution of new phenomena to the signal region yields.
format Articulo
Articulo
author Alconada Verzini, María Josefina
Alonso, Francisco
Arduh, Francisco Anuar
Dova, María Teresa
Hoya, Joaquín
Monticelli, Fernando Gabriel
Wahlberg, Hernán Pablo
The ATLAS Collaboration
author_facet Alconada Verzini, María Josefina
Alonso, Francisco
Arduh, Francisco Anuar
Dova, María Teresa
Hoya, Joaquín
Monticelli, Fernando Gabriel
Wahlberg, Hernán Pablo
The ATLAS Collaboration
author_sort Alconada Verzini, María Josefina
title Search for supersymmetry in final states with two same-sign or three leptons and jets using 36 fb-1 of √s = 13 TeV pp collision data with the ATLAS detector
title_short Search for supersymmetry in final states with two same-sign or three leptons and jets using 36 fb-1 of √s = 13 TeV pp collision data with the ATLAS detector
title_full Search for supersymmetry in final states with two same-sign or three leptons and jets using 36 fb-1 of √s = 13 TeV pp collision data with the ATLAS detector
title_fullStr Search for supersymmetry in final states with two same-sign or three leptons and jets using 36 fb-1 of √s = 13 TeV pp collision data with the ATLAS detector
title_full_unstemmed Search for supersymmetry in final states with two same-sign or three leptons and jets using 36 fb-1 of √s = 13 TeV pp collision data with the ATLAS detector
title_sort search for supersymmetry in final states with two same-sign or three leptons and jets using 36 fb-1 of √s = 13 tev pp collision data with the atlas detector
publishDate 2017
url http://sedici.unlp.edu.ar/handle/10915/78565
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