Test of CP invariance in vector-boson fusion production of the Higgs boson using the <i>Optimal Observable</i> method in the ditau decay channel with the ATLAS detector

A test of CP invariance in Higgs boson production via vector-boson fusion using the method of the Optimal Observable is presented. The analysis exploits the decay mode of the Higgs boson into a pair of τ leptons and is based on 20.3 fb−1 of proton–proton collision data at √s = 8 TeV collected by the...

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Detalles Bibliográficos
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: 2016
Materias:
Ciencias Exactas
Física
CP invariance
Optimal Observable method
Higgs boson
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/82899
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-82899
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
CP invariance
Optimal Observable method
Higgs boson
spellingShingle Ciencias Exactas
Física
CP invariance
Optimal Observable method
Higgs boson
Alconada Verzini, María Josefina
Alonso, Francisco
Arduh, Francisco Anuar
Dova, María Teresa
Monticelli, Fernando Gabriel
Wahlberg, Hernán Pablo
The ATLAS Collaboration
Test of CP invariance in vector-boson fusion production of the Higgs boson using the <i>Optimal Observable</i> method in the ditau decay channel with the ATLAS detector
topic_facet Ciencias Exactas
Física
CP invariance
Optimal Observable method
Higgs boson
description A test of CP invariance in Higgs boson production via vector-boson fusion using the method of the Optimal Observable is presented. The analysis exploits the decay mode of the Higgs boson into a pair of τ leptons and is based on 20.3 fb−1 of proton–proton collision data at √s = 8 TeV collected by the ATLAS experiment at the LHC. Contributions from CP-violating interactions between the Higgs boson and electroweak gauge bosons are described in an effective field theory framework, in which the strength of CP violation is governed by a single parameter d~. The mean values and distributions of CP-odd observables agree with the expectation in the Standard Model and show no sign of CP violation. The CP-mixing parameter d~ is constrained to the interval (−0.11,0.05) at 68% confidence level, consistent with the Standard Model expectation of d~=0 .
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 Test of CP invariance in vector-boson fusion production of the Higgs boson using the <i>Optimal Observable</i> method in the ditau decay channel with the ATLAS detector
title_short Test of CP invariance in vector-boson fusion production of the Higgs boson using the <i>Optimal Observable</i> method in the ditau decay channel with the ATLAS detector
title_full Test of CP invariance in vector-boson fusion production of the Higgs boson using the <i>Optimal Observable</i> method in the ditau decay channel with the ATLAS detector
title_fullStr Test of CP invariance in vector-boson fusion production of the Higgs boson using the <i>Optimal Observable</i> method in the ditau decay channel with the ATLAS detector
title_full_unstemmed Test of CP invariance in vector-boson fusion production of the Higgs boson using the <i>Optimal Observable</i> method in the ditau decay channel with the ATLAS detector
title_sort test of cp invariance in vector-boson fusion production of the higgs boson using the <i>optimal observable</i> method in the ditau decay channel with the atlas detector
publishDate 2016
url http://sedici.unlp.edu.ar/handle/10915/82899
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