Measurement of the Higgs boson coupling properties in the H → ZZ* → 4ℓ decay channel at √s = 13 TeV with the ATLAS detector

The coupling properties of the Higgs boson are studied in the four-lepton (e, μ) decay channel using 36.1 fb−1 of pp collision data from the LHC at a centre-of-mass energy of 13 TeV collected by the ATLAS detector. Cross sections are measured for the main production modes in several exclusive region...

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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:
Ciencias Exactas
Física
hadron-hadron scattering
Higgs boson
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/82299
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-82299
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
hadron-hadron scattering
Higgs boson
spellingShingle Ciencias Exactas
Física
hadron-hadron scattering
Higgs boson
Alconada Verzini, María Josefina
Alonso, Francisco
Arduh, Francisco Anuar
Dova, María Teresa
Hoya, Joaquín
Monticelli, Fernando Gabriel
Wahlberg, Hernán Pablo
The ATLAS Collaboration
Measurement of the Higgs boson coupling properties in the H → ZZ* → 4ℓ decay channel at √s = 13 TeV with the ATLAS detector
topic_facet Ciencias Exactas
Física
hadron-hadron scattering
Higgs boson
description The coupling properties of the Higgs boson are studied in the four-lepton (e, μ) decay channel using 36.1 fb−1 of pp collision data from the LHC at a centre-of-mass energy of 13 TeV collected by the ATLAS detector. Cross sections are measured for the main production modes in several exclusive regions of the Higgs boson production phase space and are interpreted in terms of coupling modifiers. The inclusive cross section times branching ratio for H → ZZ* decay and for a Higgs boson absolute rapidity below 2.5 is measured to be 1. 73 − 0.23 + 0.24 (stat.) − 0.08 + 0.10 (exp.) ± 0.04(th.) pb compared to the Standard Model prediction of 1.34±0.09 pb. In addition, the tensor structure of the Higgs boson couplings is studied using an effective Lagrangian approach for the description of interactions beyond the Standard Model. Constraints are placed on the non-Standard-Model CP-even and CP-odd couplings to Z bosons and on the CP-odd coupling to gluons.
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 Measurement of the Higgs boson coupling properties in the H → ZZ* → 4ℓ decay channel at √s = 13 TeV with the ATLAS detector
title_short Measurement of the Higgs boson coupling properties in the H → ZZ* → 4ℓ decay channel at √s = 13 TeV with the ATLAS detector
title_full Measurement of the Higgs boson coupling properties in the H → ZZ* → 4ℓ decay channel at √s = 13 TeV with the ATLAS detector
title_fullStr Measurement of the Higgs boson coupling properties in the H → ZZ* → 4ℓ decay channel at √s = 13 TeV with the ATLAS detector
title_full_unstemmed Measurement of the Higgs boson coupling properties in the H → ZZ* → 4ℓ decay channel at √s = 13 TeV with the ATLAS detector
title_sort measurement of the higgs boson coupling properties in the h → zz* → 4ℓ decay channel at √s = 13 tev with the atlas detector
publishDate 2018
url http://sedici.unlp.edu.ar/handle/10915/82299
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