Evidence for the Higgs-boson Yukawa coupling to tau leptons with the ATLAS detector
Results of a search for H → ττ decays are presented, based on the full set of proton-proton collision data recorded by the ATLAS experiment at the LHC during 2011 and 2012. The data correspond to integrated luminosities of 4.5 fb−1 and 20.3 fb−1 at centre-of-mass energies of √s = 7TeV and √s = 8TeV...
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Autores principales: | , , , , , , |
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Formato: | Articulo |
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2015
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Acceso en línea: | http://sedici.unlp.edu.ar/handle/10915/79102 |
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I19-R120-10915-79102 |
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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 Yukawa coupling ATLAS experiment Higgs boson |
spellingShingle |
Ciencias Exactas Física hadron-hadron scattering Yukawa coupling ATLAS experiment Higgs boson Alconada Verzini, María Josefina Alonso, Francisco Anduaga, Xabier Sebastián Arduh, Francisco Anuar Dova, María Teresa Monticelli, Fernando Gabriel Wahlberg, Hernán Pablo Evidence for the Higgs-boson Yukawa coupling to tau leptons with the ATLAS detector |
topic_facet |
Ciencias Exactas Física hadron-hadron scattering Yukawa coupling ATLAS experiment Higgs boson |
description |
Results of a search for H → ττ decays are presented, based on the full set of proton-proton collision data recorded by the ATLAS experiment at the LHC during 2011 and 2012. The data correspond to integrated luminosities of 4.5 fb−1 and 20.3 fb−1 at centre-of-mass energies of √s = 7TeV and √s = 8TeV respectively. All combinations of leptonic (τ → ℓv¯v with ℓ = e, μ) and hadronic (τ → hadrons v) tau decays are considered. An excess of events over the expected background from other Standard Model processes is found with an observed (expected) significance of 4.5 (3.4) standard deviations. This excess provides evidence for the direct coupling of the recently discovered Higgs boson to fermions. The measured signal strength, normalised to the Standard Model expectation, of μ = 1.43 +0.43 −0.37 is consistent with the predicted Yukawa coupling strength in the Standard Model. |
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 |
author_facet |
Alconada Verzini, María Josefina Alonso, Francisco Anduaga, Xabier Sebastián Arduh, Francisco Anuar Dova, María Teresa Monticelli, Fernando Gabriel Wahlberg, Hernán Pablo |
author_sort |
Alconada Verzini, María Josefina |
title |
Evidence for the Higgs-boson Yukawa coupling to tau leptons with the ATLAS detector |
title_short |
Evidence for the Higgs-boson Yukawa coupling to tau leptons with the ATLAS detector |
title_full |
Evidence for the Higgs-boson Yukawa coupling to tau leptons with the ATLAS detector |
title_fullStr |
Evidence for the Higgs-boson Yukawa coupling to tau leptons with the ATLAS detector |
title_full_unstemmed |
Evidence for the Higgs-boson Yukawa coupling to tau leptons with the ATLAS detector |
title_sort |
evidence for the higgs-boson yukawa coupling to tau leptons with the atlas detector |
publishDate |
2015 |
url |
http://sedici.unlp.edu.ar/handle/10915/79102 |
work_keys_str_mv |
AT alconadaverzinimariajosefina evidenceforthehiggsbosonyukawacouplingtotauleptonswiththeatlasdetector AT alonsofrancisco evidenceforthehiggsbosonyukawacouplingtotauleptonswiththeatlasdetector AT anduagaxabiersebastian evidenceforthehiggsbosonyukawacouplingtotauleptonswiththeatlasdetector AT arduhfranciscoanuar evidenceforthehiggsbosonyukawacouplingtotauleptonswiththeatlasdetector AT dovamariateresa evidenceforthehiggsbosonyukawacouplingtotauleptonswiththeatlasdetector AT monticellifernandogabriel evidenceforthehiggsbosonyukawacouplingtotauleptonswiththeatlasdetector AT wahlberghernanpablo evidenceforthehiggsbosonyukawacouplingtotauleptonswiththeatlasdetector |
bdutipo_str |
Repositorios |
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1764820487160987649 |