Search for Higgs boson pair production in the γγb¯b final state with 13TeV pp collision data collected by the ATLAS experiment

A search is performed for resonant and non-resonant Higgs boson pair production in the γγb¯b final state. The data set used corresponds to an integrated luminosity of 36.1 fb−1 of proton-proton collisions at a centre-of-mass energy of 13TeV recorded by the ATLAS detector at the CERN Large Hadron Col...

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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
Higgs boson
Higgs physics
hadron-hadron scattering
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/82841
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-82841
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
Higgs boson
Higgs physics
hadron-hadron scattering
spellingShingle Ciencias Exactas
Física
Higgs boson
Higgs physics
hadron-hadron scattering
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 Higgs boson pair production in the γγb¯b final state with 13TeV pp collision data collected by the ATLAS experiment
topic_facet Ciencias Exactas
Física
Higgs boson
Higgs physics
hadron-hadron scattering
description A search is performed for resonant and non-resonant Higgs boson pair production in the γγb¯b final state. The data set used corresponds to an integrated luminosity of 36.1 fb−1 of proton-proton collisions at a centre-of-mass energy of 13TeV recorded by the ATLAS detector at the CERN Large Hadron Collider. No significant excess relative to the Standard Model expectation is observed. The observed limit on the non-resonant Higgs boson pair cross-section is 0.73 pb at 95% confidence level. This observed limit is equivalent to 22 times the predicted Standard Model cross-section. The Higgs boson self-coupling (κλ = λHHH/λSM HHH) is constrained at 95% confidence level to −8.2 < κλ < 13.2. For resonant Higgs boson pair production through X → HH → γγb¯b, the limit is presented, using the narrow-width approximation, as a function of mX in the range 260 GeV < mX < 1000 GeV. The observed limits range from 1.1 pb to 0.12 pb over this mass range.
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 Higgs boson pair production in the γγb¯b final state with 13TeV pp collision data collected by the ATLAS experiment
title_short Search for Higgs boson pair production in the γγb¯b final state with 13TeV pp collision data collected by the ATLAS experiment
title_full Search for Higgs boson pair production in the γγb¯b final state with 13TeV pp collision data collected by the ATLAS experiment
title_fullStr Search for Higgs boson pair production in the γγb¯b final state with 13TeV pp collision data collected by the ATLAS experiment
title_full_unstemmed Search for Higgs boson pair production in the γγb¯b final state with 13TeV pp collision data collected by the ATLAS experiment
title_sort search for higgs boson pair production in the γγb¯b final state with 13tev pp collision data collected by the atlas experiment
publishDate 2018
url http://sedici.unlp.edu.ar/handle/10915/82841
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