Constraints on non-Standard Model Higgs boson interactions in an effective Lagrangian using differential cross sections measured in the <i>H → γγ</i> decay channel at √s = 8 TeV with the ATLAS detector

The strength and tensor structure of the Higgs boson’s interactions are investigated using an effective Lagrangian, which introduces additional CP-even and CP-odd interactions that lead to changes in the kinematic properties of the Higgs boson and associated jet spectra with respect to the Standard...

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Autores principales: Alconada Verzini, María Josefina, Alonso, Francisco, Arduh, Francisco Anuar, Dova, María Teresa, Monticelli, Fernando Gabriel, Wahlberg, Hernán Pablo, The ATLAS Collaboration
Formato: Articulo
Lenguaje:Inglés
Publicado: 2015
Materias:
Ciencias Exactas
Física
standard model Higgs boson
mecánica lagrangiana
ATLAS detector
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/79675
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-79675
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
standard model Higgs boson
mecánica lagrangiana
ATLAS detector
spellingShingle Ciencias Exactas
Física
standard model Higgs boson
mecánica lagrangiana
ATLAS detector
Alconada Verzini, María Josefina
Alonso, Francisco
Arduh, Francisco Anuar
Dova, María Teresa
Monticelli, Fernando Gabriel
Wahlberg, Hernán Pablo
The ATLAS Collaboration
Constraints on non-Standard Model Higgs boson interactions in an effective Lagrangian using differential cross sections measured in the <i>H → γγ</i> decay channel at √s = 8 TeV with the ATLAS detector
topic_facet Ciencias Exactas
Física
standard model Higgs boson
mecánica lagrangiana
ATLAS detector
description The strength and tensor structure of the Higgs boson’s interactions are investigated using an effective Lagrangian, which introduces additional CP-even and CP-odd interactions that lead to changes in the kinematic properties of the Higgs boson and associated jet spectra with respect to the Standard Model. The parameters of the effective Lagrangian are probed using a fit to five differential cross sections previously measured by the ATLAS experiment in the H → γγ decay channel with an integrated luminosity of 20.3 fb<sup>−1</sup> at √s = 8 TeV. In order to perform a simultaneous fit to the five distributions, the statistical correlations between them are determined by re-analysing the H → γγ candidate events in the proton–proton collision data. No significant deviations from the Standard Model predictions are observed and limits on the effective Lagrangian parameters are derived. The statistical correlations are made publicly available to allow for future analysis of theories with non-Standard Model interactions.
format Articulo
Articulo
author Alconada Verzini, María Josefina
Alonso, Francisco
Arduh, Francisco Anuar
Dova, María Teresa
Monticelli, Fernando Gabriel
Wahlberg, Hernán Pablo
The ATLAS Collaboration
author_facet Alconada Verzini, María Josefina
Alonso, Francisco
Arduh, Francisco Anuar
Dova, María Teresa
Monticelli, Fernando Gabriel
Wahlberg, Hernán Pablo
The ATLAS Collaboration
author_sort Alconada Verzini, María Josefina
title Constraints on non-Standard Model Higgs boson interactions in an effective Lagrangian using differential cross sections measured in the <i>H → γγ</i> decay channel at √s = 8 TeV with the ATLAS detector
title_short Constraints on non-Standard Model Higgs boson interactions in an effective Lagrangian using differential cross sections measured in the <i>H → γγ</i> decay channel at √s = 8 TeV with the ATLAS detector
title_full Constraints on non-Standard Model Higgs boson interactions in an effective Lagrangian using differential cross sections measured in the <i>H → γγ</i> decay channel at √s = 8 TeV with the ATLAS detector
title_fullStr Constraints on non-Standard Model Higgs boson interactions in an effective Lagrangian using differential cross sections measured in the <i>H → γγ</i> decay channel at √s = 8 TeV with the ATLAS detector
title_full_unstemmed Constraints on non-Standard Model Higgs boson interactions in an effective Lagrangian using differential cross sections measured in the <i>H → γγ</i> decay channel at √s = 8 TeV with the ATLAS detector
title_sort constraints on non-standard model higgs boson interactions in an effective lagrangian using differential cross sections measured in the <i>h → γγ</i> decay channel at √s = 8 tev with the atlas detector
publishDate 2015
url http://sedici.unlp.edu.ar/handle/10915/79675
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