Search for Resonant and Nonresonant Higgs Boson Pair Production in the b͞bτ+τ− Decay Channel in pp Collisions at √s = 13 TeV with the ATLAS Detector

A search for resonant and nonresonant pair production of Higgs bosons in the bb¯τ+τ- final state is presented. The search uses 36.1  fb-1 of pp collision data with s=13  TeV recorded by the ATLAS experiment at the LHC in 2015 and 2016. Decays of the τ-lepton pairs with at least one τ lepton decaying...

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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: 2018
Materias:
Física
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/139048
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-139048
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Física
spellingShingle Física
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 Resonant and Nonresonant Higgs Boson Pair Production in the b͞bτ+τ− Decay Channel in pp Collisions at √s = 13 TeV with the ATLAS Detector
topic_facet Física
description A search for resonant and nonresonant pair production of Higgs bosons in the bb¯τ+τ- final state is presented. The search uses 36.1  fb-1 of pp collision data with s=13  TeV recorded by the ATLAS experiment at the LHC in 2015 and 2016. Decays of the τ-lepton pairs with at least one τ lepton decaying to final states with hadrons and a neutrino are considered. No significant excess above the expected background is observed in the data. The cross-section times branching ratio for nonresonant Higgs boson pair production is constrained to be less than 30.9 fb, 12.7 times the standard model expectation, at 95% confidence level. The data are also analyzed to probe resonant Higgs boson pair production, constraining a model with an extended Higgs sector based on two doublets and a Randall-Sundrum bulk graviton model. Upper limits are placed on the resonant Higgs boson pair production cross-section times branching ratio, excluding resonances X in the mass range 305  GeV<mX<402  GeV in the simplified hMSSM minimal supersymmetric model for tanβ=2 and excluding bulk Randall-Sundrum gravitons GKK in the mass range 325  GeV<mGKK<885  GeV for k/M¯Pl=1.
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 Resonant and Nonresonant Higgs Boson Pair Production in the b͞bτ+τ− Decay Channel in pp Collisions at √s = 13 TeV with the ATLAS Detector
title_short Search for Resonant and Nonresonant Higgs Boson Pair Production in the b͞bτ+τ− Decay Channel in pp Collisions at √s = 13 TeV with the ATLAS Detector
title_full Search for Resonant and Nonresonant Higgs Boson Pair Production in the b͞bτ+τ− Decay Channel in pp Collisions at √s = 13 TeV with the ATLAS Detector
title_fullStr Search for Resonant and Nonresonant Higgs Boson Pair Production in the b͞bτ+τ− Decay Channel in pp Collisions at √s = 13 TeV with the ATLAS Detector
title_full_unstemmed Search for Resonant and Nonresonant Higgs Boson Pair Production in the b͞bτ+τ− Decay Channel in pp Collisions at √s = 13 TeV with the ATLAS Detector
title_sort search for resonant and nonresonant higgs boson pair production in the b͞bτ+τ− decay channel in pp collisions at √s = 13 tev with the atlas detector
publishDate 2018
url http://sedici.unlp.edu.ar/handle/10915/139048
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