Search for the Standard Model Higgs boson decaying into b¯b¯ produced in association with top quarks decaying hadronically in pp collisions at √s=8 TeV with the ATLAS detector

Mostrar todas las versiones(2)

A search for Higgs boson production in association with a pair of top quarks (tt¯H) is performed, where the Higgs boson decays to b¯b¯, and both top quarks decay hadronically. The data used correspond to an integrated luminosity of 20.3 fb−1 of pp collisions at √s=8 TeV collected with the ATLAS det...

Descripción completa

Guardado en:
Detalles Bibliográficos
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: 2016
Materias:
Ciencias Exactas
Física
hadron-hadron scattering
Higgs boson
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/82897
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-82897
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
Higgs boson
spellingShingle Ciencias Exactas
Física
hadron-hadron scattering
Higgs boson
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 the Standard Model Higgs boson decaying into b¯b¯ produced in association with top quarks decaying hadronically in pp collisions at √s=8 TeV with the ATLAS detector
topic_facet Ciencias Exactas
Física
hadron-hadron scattering
Higgs boson
description A search for Higgs boson production in association with a pair of top quarks (tt¯H) is performed, where the Higgs boson decays to b¯b¯, and both top quarks decay hadronically. The data used correspond to an integrated luminosity of 20.3 fb−1 of pp collisions at √s=8 TeV collected with the ATLAS detector at the Large Hadron Collider. The search selects events with at least six energetic jets and uses a boosted decision tree algorithm to discriminate between signal and Standard Model background. The dominant multijet background is estimated using a dedicated data-driven technique. For a Higgs boson mass of 125 GeV, an upper limit of 6.4 (5.4) times the Standard Model cross section is observed (expected) at 95% confidence level. The best-fit value for the signal strength is μ = 1.6 ± 2.6 times the Standard Model expectation for m H = 125 GeV. Combining all tt¯H searches carried out by ATLAS at s√=8 and 7 TeV, an observed (expected) upper limit of 3.1 (1.4) times the Standard Model expectation is obtained at 95% confidence level, with a signal strength μ = 1.7 ± 0.8.
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 the Standard Model Higgs boson decaying into b¯b¯ produced in association with top quarks decaying hadronically in pp collisions at √s=8 TeV with the ATLAS detector
title_short Search for the Standard Model Higgs boson decaying into b¯b¯ produced in association with top quarks decaying hadronically in pp collisions at √s=8 TeV with the ATLAS detector
title_full Search for the Standard Model Higgs boson decaying into b¯b¯ produced in association with top quarks decaying hadronically in pp collisions at √s=8 TeV with the ATLAS detector
title_fullStr Search for the Standard Model Higgs boson decaying into b¯b¯ produced in association with top quarks decaying hadronically in pp collisions at √s=8 TeV with the ATLAS detector
title_full_unstemmed Search for the Standard Model Higgs boson decaying into b¯b¯ produced in association with top quarks decaying hadronically in pp collisions at √s=8 TeV with the ATLAS detector
title_sort search for the standard model higgs boson decaying into b¯b¯ produced in association with top quarks decaying hadronically in pp collisions at √s=8 tev with the atlas detector
publishDate 2016
url http://sedici.unlp.edu.ar/handle/10915/82897
work_keys_str_mv AT alconadaverzinimariajosefina searchforthestandardmodelhiggsbosondecayingintobbproducedinassociationwithtopquarksdecayinghadronicallyinppcollisionsats8tevwiththeatlasdetector
AT alonsofrancisco searchforthestandardmodelhiggsbosondecayingintobbproducedinassociationwithtopquarksdecayinghadronicallyinppcollisionsats8tevwiththeatlasdetector
AT arduhfranciscoanuar searchforthestandardmodelhiggsbosondecayingintobbproducedinassociationwithtopquarksdecayinghadronicallyinppcollisionsats8tevwiththeatlasdetector
AT dovamariateresa searchforthestandardmodelhiggsbosondecayingintobbproducedinassociationwithtopquarksdecayinghadronicallyinppcollisionsats8tevwiththeatlasdetector
AT hoyajoaquin searchforthestandardmodelhiggsbosondecayingintobbproducedinassociationwithtopquarksdecayinghadronicallyinppcollisionsats8tevwiththeatlasdetector
AT monticellifernandogabriel searchforthestandardmodelhiggsbosondecayingintobbproducedinassociationwithtopquarksdecayinghadronicallyinppcollisionsats8tevwiththeatlasdetector
AT wahlberghernanpablo searchforthestandardmodelhiggsbosondecayingintobbproducedinassociationwithtopquarksdecayinghadronicallyinppcollisionsats8tevwiththeatlasdetector
AT theatlascollaboration searchforthestandardmodelhiggsbosondecayingintobbproducedinassociationwithtopquarksdecayinghadronicallyinppcollisionsats8tevwiththeatlasdetector
bdutipo_str Repositorios
_version_ 1764820488740143107

Ejemplares similares