Measurement of the Higgs boson mass from the H → γγ and H → ZZ* → 4ℓ channels in pp collisions at center-of-mass energies of 7 and 8 TeV with the ATLAS detector

An improved measurement of the mass of the Higgs boson is derived from a combined fit to the reconstructed invariant mass spectra of the decay channels H → γγ and H → ZZ∗→ 4ℓ. The analysis uses the pp collision data sample recorded by the ATLAS experiment at the CERN Large Hadron Collider at center-...

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Detalles Bibliográficos
Autores principales: Alconada Verzini, María Josefina, Alonso, Francisco, Anduaga, Xabier Sebastián, Dova, María Teresa, Monticelli, Fernando Gabriel, Wahlberg, Hernán Pablo, The ATLAS Collaboration
Formato: Articulo
Lenguaje:Inglés
Publicado: 2014
Materias:
Física
Ciencias Exactas
Higgs boson mass
ATLAS detector
Large hadron collider
Partículas Elementales
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/85201
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-85201
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Física
Ciencias Exactas
Higgs boson mass
ATLAS detector
Large hadron collider
Partículas Elementales
spellingShingle Física
Ciencias Exactas
Higgs boson mass
ATLAS detector
Large hadron collider
Partículas Elementales
Alconada Verzini, María Josefina
Alonso, Francisco
Anduaga, Xabier Sebastián
Dova, María Teresa
Monticelli, Fernando Gabriel
Wahlberg, Hernán Pablo
The ATLAS Collaboration
Measurement of the Higgs boson mass from the H → γγ and H → ZZ* → 4ℓ channels in pp collisions at center-of-mass energies of 7 and 8 TeV with the ATLAS detector
topic_facet Física
Ciencias Exactas
Higgs boson mass
ATLAS detector
Large hadron collider
Partículas Elementales
description An improved measurement of the mass of the Higgs boson is derived from a combined fit to the reconstructed invariant mass spectra of the decay channels H → γγ and H → ZZ∗→ 4ℓ. The analysis uses the pp collision data sample recorded by the ATLAS experiment at the CERN Large Hadron Collider at center-of-mass energies of 7 TeV and 8 TeV, corresponding to an integrated luminosity of 25 fb-1. The measured value of the Higgs boson mass is mH= 125.36 ± 0.37(stat) ± 0.18(syst) GeV. This result is based on improved energy-scale calibrations for photons, electrons, and muons as well as other analysis improvements, and supersedes the previous result from ATLAS. Upper limits on the total width of the Higgs boson are derived from fits to the invariant mass spectra of the H → γγ and H → ZZ∗→ 4ℓ decay channels.
format Articulo
Articulo
author Alconada Verzini, María Josefina
Alonso, Francisco
Anduaga, Xabier Sebastián
Dova, María Teresa
Monticelli, Fernando Gabriel
Wahlberg, Hernán Pablo
The ATLAS Collaboration
author_facet Alconada Verzini, María Josefina
Alonso, Francisco
Anduaga, Xabier Sebastián
Dova, María Teresa
Monticelli, Fernando Gabriel
Wahlberg, Hernán Pablo
The ATLAS Collaboration
author_sort Alconada Verzini, María Josefina
title Measurement of the Higgs boson mass from the H → γγ and H → ZZ* → 4ℓ channels in pp collisions at center-of-mass energies of 7 and 8 TeV with the ATLAS detector
title_short Measurement of the Higgs boson mass from the H → γγ and H → ZZ* → 4ℓ channels in pp collisions at center-of-mass energies of 7 and 8 TeV with the ATLAS detector
title_full Measurement of the Higgs boson mass from the H → γγ and H → ZZ* → 4ℓ channels in pp collisions at center-of-mass energies of 7 and 8 TeV with the ATLAS detector
title_fullStr Measurement of the Higgs boson mass from the H → γγ and H → ZZ* → 4ℓ channels in pp collisions at center-of-mass energies of 7 and 8 TeV with the ATLAS detector
title_full_unstemmed Measurement of the Higgs boson mass from the H → γγ and H → ZZ* → 4ℓ channels in pp collisions at center-of-mass energies of 7 and 8 TeV with the ATLAS detector
title_sort measurement of the higgs boson mass from the h → γγ and h → zz* → 4ℓ channels in pp collisions at center-of-mass energies of 7 and 8 tev with the atlas detector
publishDate 2014
url http://sedici.unlp.edu.ar/handle/10915/85201
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