Search for the b¯b decay of the Standard Model Higgs boson in associated (W/Z)H production with the ATLAS detector

A search for the b¯b decay of the Standard Model Higgs boson is performed with the ATLAS experiment using the full dataset recorded at the LHC in Run 1. The integrated luminosities used are 4.7 and 20.3 fb−1 from pp collisions at p s = 7 and 8TeV, respectively. The processes considered are associate...

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Autores principales: Alconada Verzini, María Josefina, Alonso, Francisco, Anduaga, Xabier Sebastián, Arduh, Francisco Anuar, Dova, María Teresa, Monticelli, Fernando Gabriel, Wahlberg, Hernán Pablo, The ATLAS Collaboration
Formato: Articulo
Lenguaje:Inglés
Publicado: 2015
Materias:
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/79210
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id I19-R120-10915-79210
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
standard model Higgs boson
ATLAS experiment
spellingShingle Ciencias Exactas
Física
hadron-hadron scattering
standard model Higgs boson
ATLAS experiment
Alconada Verzini, María Josefina
Alonso, Francisco
Anduaga, Xabier Sebastián
Arduh, Francisco Anuar
Dova, María Teresa
Monticelli, Fernando Gabriel
Wahlberg, Hernán Pablo
The ATLAS Collaboration
Search for the b¯b decay of the Standard Model Higgs boson in associated (W/Z)H production with the ATLAS detector
topic_facet Ciencias Exactas
Física
hadron-hadron scattering
standard model Higgs boson
ATLAS experiment
description A search for the b¯b decay of the Standard Model Higgs boson is performed with the ATLAS experiment using the full dataset recorded at the LHC in Run 1. The integrated luminosities used are 4.7 and 20.3 fb−1 from pp collisions at p s = 7 and 8TeV, respectively. The processes considered are associated (W/Z)H production, where W → e /μ , Z → ee/μμ and Z → vv. The observed (expected) deviation from the backgroundonly hypothesis corresponds to a significance of 1.4 (2.6) standard deviations and the ratio of the measured signal yield to the Standard Model expectation is found to be μ = 0.52 ± 0.32 (stat.) ± 0.24 (syst.) for a Higgs boson mass of 125.36 GeV. The analysis procedure is validated by a measurement of the yield of (W/Z)Z production with Z → b¯b in the same final states as for the Higgs boson search, from which the ratio of the observed signal yield to the Standard Model expectation is found to be 0.74 ± 0.09 (stat.) ± 0.14 (syst.).
format Articulo
Articulo
author Alconada Verzini, María Josefina
Alonso, Francisco
Anduaga, Xabier Sebastián
Arduh, Francisco Anuar
Dova, María Teresa
Monticelli, Fernando Gabriel
Wahlberg, Hernán Pablo
The ATLAS Collaboration
author_facet Alconada Verzini, María Josefina
Alonso, Francisco
Anduaga, Xabier Sebastián
Arduh, Francisco Anuar
Dova, María Teresa
Monticelli, Fernando Gabriel
Wahlberg, Hernán Pablo
The ATLAS Collaboration
author_sort Alconada Verzini, María Josefina
title Search for the b¯b decay of the Standard Model Higgs boson in associated (W/Z)H production with the ATLAS detector
title_short Search for the b¯b decay of the Standard Model Higgs boson in associated (W/Z)H production with the ATLAS detector
title_full Search for the b¯b decay of the Standard Model Higgs boson in associated (W/Z)H production with the ATLAS detector
title_fullStr Search for the b¯b decay of the Standard Model Higgs boson in associated (W/Z)H production with the ATLAS detector
title_full_unstemmed Search for the b¯b decay of the Standard Model Higgs boson in associated (W/Z)H production with the ATLAS detector
title_sort search for the b¯b decay of the standard model higgs boson in associated (w/z)h production with the atlas detector
publishDate 2015
url http://sedici.unlp.edu.ar/handle/10915/79210
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