Search for charged Higgs bosons decaying via H± → τ±v in fully hadronic final states using pp collision data at √s = 8 TeV with the ATLAS detector

The results of a search for charged Higgs bosons decaying to a τ lepton and a neutrino, H± → τ±ν, are presented. The analysis is based on 19.5 fb−1 of proton-proton collision data at √s = 8TeV collected by the ATLAS experiment at the Large Hadron Collider. Charged Higgs bosons are searched for in ev...

Descripción completa

Detalles Bibliográficos
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/10915/79139
Aporte de:SEDICI (UNLP) de Universidad Nacional de La Plata Ver origen
id I19-R120-10915-79139
record_format dspace
spelling I19-R120-10915-791392020-05-21T04:09:25Z http://sedici.unlp.edu.ar/handle/10915/79139 issn:1029-8479 Search for charged Higgs bosons decaying via H± → τ±v in fully hadronic final states using pp collision data at √s = 8 TeV with the ATLAS detector Alconada Verzini, María Josefina Alonso, Francisco Anduaga, Xabier Sebastián Arduh, Francisco Anuar Dova, María Teresa Monticelli, Fernando Gabriel Wahlberg, Hernán Pablo The ATLAS Collaboration 2015-03-17 2019-08-14T17:59:55Z en Ciencias Exactas Física supersymmetry hadron-hadron scattering ATLAS detector Higgs physics Higgs boson The results of a search for charged Higgs bosons decaying to a τ lepton and a neutrino, H± → τ±ν, are presented. The analysis is based on 19.5 fb−1 of proton-proton collision data at √s = 8TeV collected by the ATLAS experiment at the Large Hadron Collider. Charged Higgs bosons are searched for in events consistent with top-quark pair production or in associated production with a top quark, depending on the considered H± mass. The final state is characterised by the presence of a hadronic τ decay, missing transverse momentum, b-tagged jets, a hadronically decaying W boson, and the absence of any isolated electrons or muons with high transverse momenta. The data are consistent with the expected background from Standard Model processes. A statistical analysis leads to 95% confidence-level upper limits on the product of branching ratios B(t → bH±) × B(H± → τ±ν), between 0.23% and 1.3% for charged Higgs boson masses in the range 80–160GeV. It also leads to 95% confidence-level upper limits on the production cross section times branching ratio, σ(pp → tH± +X)×B(H± → τ±ν), between 0.76 pb and 4.5 fb, for charged Higgs boson masses ranging from 180GeV to 1000GeV. In the context of different scenarios of the Minimal Supersymmetric Standard Model, these results exclude nearly all values of tan β above one for charged Higgs boson masses between 80GeV and 160GeV, and exclude a region of parameter space with high tan β for H± masses between 200GeV and 250GeV. Facultad de Ciencias Exactas Articulo Articulo http://creativecommons.org/licenses/by/4.0/ Creative Commons Attribution 4.0 International (CC BY 4.0) application/pdf
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Exactas
Física
supersymmetry
hadron-hadron scattering
ATLAS detector
Higgs physics
Higgs boson
spellingShingle Ciencias Exactas
Física
supersymmetry
hadron-hadron scattering
ATLAS detector
Higgs physics
Higgs boson
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 charged Higgs bosons decaying via H± → τ±v in fully hadronic final states using pp collision data at √s = 8 TeV with the ATLAS detector
topic_facet Ciencias Exactas
Física
supersymmetry
hadron-hadron scattering
ATLAS detector
Higgs physics
Higgs boson
description The results of a search for charged Higgs bosons decaying to a τ lepton and a neutrino, H± → τ±ν, are presented. The analysis is based on 19.5 fb−1 of proton-proton collision data at √s = 8TeV collected by the ATLAS experiment at the Large Hadron Collider. Charged Higgs bosons are searched for in events consistent with top-quark pair production or in associated production with a top quark, depending on the considered H± mass. The final state is characterised by the presence of a hadronic τ decay, missing transverse momentum, b-tagged jets, a hadronically decaying W boson, and the absence of any isolated electrons or muons with high transverse momenta. The data are consistent with the expected background from Standard Model processes. A statistical analysis leads to 95% confidence-level upper limits on the product of branching ratios B(t → bH±) × B(H± → τ±ν), between 0.23% and 1.3% for charged Higgs boson masses in the range 80–160GeV. It also leads to 95% confidence-level upper limits on the production cross section times branching ratio, σ(pp → tH± +X)×B(H± → τ±ν), between 0.76 pb and 4.5 fb, for charged Higgs boson masses ranging from 180GeV to 1000GeV. In the context of different scenarios of the Minimal Supersymmetric Standard Model, these results exclude nearly all values of tan β above one for charged Higgs boson masses between 80GeV and 160GeV, and exclude a region of parameter space with high tan β for H± masses between 200GeV and 250GeV.
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 charged Higgs bosons decaying via H± → τ±v in fully hadronic final states using pp collision data at √s = 8 TeV with the ATLAS detector
title_short Search for charged Higgs bosons decaying via H± → τ±v in fully hadronic final states using pp collision data at √s = 8 TeV with the ATLAS detector
title_full Search for charged Higgs bosons decaying via H± → τ±v in fully hadronic final states using pp collision data at √s = 8 TeV with the ATLAS detector
title_fullStr Search for charged Higgs bosons decaying via H± → τ±v in fully hadronic final states using pp collision data at √s = 8 TeV with the ATLAS detector
title_full_unstemmed Search for charged Higgs bosons decaying via H± → τ±v in fully hadronic final states using pp collision data at √s = 8 TeV with the ATLAS detector
title_sort search for charged higgs bosons decaying via h± → τ±v in fully hadronic final states using pp collision data at √s = 8 tev with the atlas detector
publishDate 2015
url http://sedici.unlp.edu.ar/handle/10915/79139
work_keys_str_mv AT alconadaverzinimariajosefina searchforchargedhiggsbosonsdecayingviahtvinfullyhadronicfinalstatesusingppcollisiondataats8tevwiththeatlasdetector
AT alonsofrancisco searchforchargedhiggsbosonsdecayingviahtvinfullyhadronicfinalstatesusingppcollisiondataats8tevwiththeatlasdetector
AT anduagaxabiersebastian searchforchargedhiggsbosonsdecayingviahtvinfullyhadronicfinalstatesusingppcollisiondataats8tevwiththeatlasdetector
AT arduhfranciscoanuar searchforchargedhiggsbosonsdecayingviahtvinfullyhadronicfinalstatesusingppcollisiondataats8tevwiththeatlasdetector
AT dovamariateresa searchforchargedhiggsbosonsdecayingviahtvinfullyhadronicfinalstatesusingppcollisiondataats8tevwiththeatlasdetector
AT monticellifernandogabriel searchforchargedhiggsbosonsdecayingviahtvinfullyhadronicfinalstatesusingppcollisiondataats8tevwiththeatlasdetector
AT wahlberghernanpablo searchforchargedhiggsbosonsdecayingviahtvinfullyhadronicfinalstatesusingppcollisiondataats8tevwiththeatlasdetector
AT theatlascollaboration searchforchargedhiggsbosonsdecayingviahtvinfullyhadronicfinalstatesusingppcollisiondataats8tevwiththeatlasdetector
_version_ 1734138125628735488