Search for supersymmetry in final states with missing transverse momentum and multiple b-jets in proton-proton collisions at √s = 13 TeV with the ATLAS detector

A search for supersymmetry involving the pair production of gluinos decaying via third-generation squarks into the lightest neutralino ( ~ χ 0 1 ) is reported. It uses LHC proton-proton collision data at a centre-of-mass energy √ s = 13 TeV with an integrated luminosity of 36.1 fb−1 collected with t...

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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: 2018
Materias:
Ciencias Exactas
Física
hadron-hadron scattering
supersymmetry
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/82846
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-82846
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
spellingShingle Ciencias Exactas
Física
hadron-hadron scattering
supersymmetry
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 missing transverse momentum and multiple b-jets in proton-proton collisions at √s = 13 TeV with the ATLAS detector
topic_facet Ciencias Exactas
Física
hadron-hadron scattering
supersymmetry
description A search for supersymmetry involving the pair production of gluinos decaying via third-generation squarks into the lightest neutralino ( ~ χ 0 1 ) is reported. It uses LHC proton-proton collision data at a centre-of-mass energy √ s = 13 TeV with an integrated luminosity of 36.1 fb−1 collected with the ATLAS detector in 2015 and 2016. The search is performed in events containing large missing transverse momentum and several energetic jets, at least three of which must be identified as originating from b-quarks. To increase the sensitivity, the sample is divided into subsamples based on the presence or absence of electrons or muons. No excess is found above the predicted background. For ~ χ 0 1 masses below approximately 300 GeV, gluino masses of less than 1.97 (1.92) TeV are excluded at 95% confidence level in simplified models involving the pair production of gluinos that decay via top (bottom) squarks. An interpretation of the limits in terms of the branching ratios of the gluinos into third-generation squarks is also provided. These results improve upon the exclusion limits obtained with the 3.2 fb−1 of data collected in 2015.
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 missing transverse momentum and multiple b-jets in proton-proton collisions at √s = 13 TeV with the ATLAS detector
title_short Search for supersymmetry in final states with missing transverse momentum and multiple b-jets in proton-proton collisions at √s = 13 TeV with the ATLAS detector
title_full Search for supersymmetry in final states with missing transverse momentum and multiple b-jets in proton-proton collisions at √s = 13 TeV with the ATLAS detector
title_fullStr Search for supersymmetry in final states with missing transverse momentum and multiple b-jets in proton-proton collisions at √s = 13 TeV with the ATLAS detector
title_full_unstemmed Search for supersymmetry in final states with missing transverse momentum and multiple b-jets in proton-proton collisions at √s = 13 TeV with the ATLAS detector
title_sort search for supersymmetry in final states with missing transverse momentum and multiple b-jets in proton-proton collisions at √s = 13 tev with the atlas detector
publishDate 2018
url http://sedici.unlp.edu.ar/handle/10915/82846
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