Search for dark matter produced in association with a Higgs boson decaying to two bottom quarks in pp collisions at √s = 8 TeV with the ATLAS detector

This article reports on a search for dark matter pair production in association with a Higgs boson decaying to a pair of bottom quarks, using data from 20.3 fb<sup>-1</sup> of pp collisions at a center-of-mass energy of 8 TeV collected by the ATLAS detector at the LHC. The decay of the H...

Descripción completa

Guardado en:
Detalles Bibliográficos
Autores principales: Alconada Verzini, María Josefina, Alonso, Francisco, Arduh, Francisco Anuar, Dova, María Teresa, Monticelli, Fernando Gabriel, Wahlberg, Hernán Pablo, The ATLAS Collaboration
Formato: Articulo
Lenguaje:Inglés
Publicado: 2016
Materias:
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/86800
Aporte de:
id I19-R120-10915-86800
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
proton-proton collisions
ATLAS detector
spellingShingle Ciencias Exactas
Física
proton-proton collisions
ATLAS detector
Alconada Verzini, María Josefina
Alonso, Francisco
Arduh, Francisco Anuar
Dova, María Teresa
Monticelli, Fernando Gabriel
Wahlberg, Hernán Pablo
The ATLAS Collaboration
Search for dark matter produced in association with a Higgs boson decaying to two bottom quarks in pp collisions at √s = 8 TeV with the ATLAS detector
topic_facet Ciencias Exactas
Física
proton-proton collisions
ATLAS detector
description This article reports on a search for dark matter pair production in association with a Higgs boson decaying to a pair of bottom quarks, using data from 20.3 fb<sup>-1</sup> of pp collisions at a center-of-mass energy of 8 TeV collected by the ATLAS detector at the LHC. The decay of the Higgs boson is reconstructed as a high-momentum bb¯ system with either a pair of small-radius jets, or a single large-radius jet with substructure. The observed data are found to be consistent with the expected Standard Model backgrounds. Model-independent upper limits are placed on the visible cross sections for events with a Higgs boson decaying into bb¯ and large missing transverse momentum with thresholds ranging from 150 to 400 GeV. Results are interpreted using a simplified model with a Z′ gauge boson decaying into different Higgs bosons predicted in a two-Higgs-doublet model, of which the heavy pseudoscalar Higgs decays into a pair of dark matter particles. Exclusion limits are also presented for the mass scales of various effective field theory operators that describe the interaction between dark matter particles and the Higgs boson.
format Articulo
Articulo
author Alconada Verzini, María Josefina
Alonso, Francisco
Arduh, Francisco Anuar
Dova, María Teresa
Monticelli, Fernando Gabriel
Wahlberg, Hernán Pablo
The ATLAS Collaboration
author_facet Alconada Verzini, María Josefina
Alonso, Francisco
Arduh, Francisco Anuar
Dova, María Teresa
Monticelli, Fernando Gabriel
Wahlberg, Hernán Pablo
The ATLAS Collaboration
author_sort Alconada Verzini, María Josefina
title Search for dark matter produced in association with a Higgs boson decaying to two bottom quarks in pp collisions at √s = 8 TeV with the ATLAS detector
title_short Search for dark matter produced in association with a Higgs boson decaying to two bottom quarks in pp collisions at √s = 8 TeV with the ATLAS detector
title_full Search for dark matter produced in association with a Higgs boson decaying to two bottom quarks in pp collisions at √s = 8 TeV with the ATLAS detector
title_fullStr Search for dark matter produced in association with a Higgs boson decaying to two bottom quarks in pp collisions at √s = 8 TeV with the ATLAS detector
title_full_unstemmed Search for dark matter produced in association with a Higgs boson decaying to two bottom quarks in pp collisions at √s = 8 TeV with the ATLAS detector
title_sort search for dark matter produced in association with a higgs boson decaying to two bottom quarks in pp collisions at √s = 8 tev with the atlas detector
publishDate 2016
url http://sedici.unlp.edu.ar/handle/10915/86800
work_keys_str_mv AT alconadaverzinimariajosefina searchfordarkmatterproducedinassociationwithahiggsbosondecayingtotwobottomquarksinppcollisionsats8tevwiththeatlasdetector
AT alonsofrancisco searchfordarkmatterproducedinassociationwithahiggsbosondecayingtotwobottomquarksinppcollisionsats8tevwiththeatlasdetector
AT arduhfranciscoanuar searchfordarkmatterproducedinassociationwithahiggsbosondecayingtotwobottomquarksinppcollisionsats8tevwiththeatlasdetector
AT dovamariateresa searchfordarkmatterproducedinassociationwithahiggsbosondecayingtotwobottomquarksinppcollisionsats8tevwiththeatlasdetector
AT monticellifernandogabriel searchfordarkmatterproducedinassociationwithahiggsbosondecayingtotwobottomquarksinppcollisionsats8tevwiththeatlasdetector
AT wahlberghernanpablo searchfordarkmatterproducedinassociationwithahiggsbosondecayingtotwobottomquarksinppcollisionsats8tevwiththeatlasdetector
AT theatlascollaboration searchfordarkmatterproducedinassociationwithahiggsbosondecayingtotwobottomquarksinppcollisionsats8tevwiththeatlasdetector
bdutipo_str Repositorios
_version_ 1764820489353560068