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

María Josefina Alconada Verzini; Francisco Alonso; Xabier Sebastián Anduaga; María Teresa Dova; Fernando Gabriel Monticelli; Hernán Pablo Wahlberg; ATLAS Collaboration

doi:10.1103/PhysRevD.90.052004

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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

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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

María Josefina Alconada Verzini, Francisco Alonso, Xabier Sebastián Anduaga, María Teresa Dova, Fernando Gabriel Monticelli, Hernán Pablo Wahlberg and ATLAS Collaboration

Physical review. D, Particles, fields, gravitation and cosmology, Vol.90, 052004

01/01/2014

DOI: 10.1103/PhysRevD.90.052004

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Abstract

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. La lista completa de autores que integran el documento puede consultarse en el archivo. Instituto de Física La Plata

High Energy Physics

Ciencias Exactas

Experiment

Física

Phenomenology

Details

Title: Subtitle: 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
Creators: María Josefina Alconada Verzini
Francisco Alonso - Universidad Nacional de La Plata
Xabier Sebastián Anduaga - Universidad Nacional de La Plata
María Teresa Dova
Fernando Gabriel Monticelli
Hernán Pablo Wahlberg
ATLAS Collaboration
Contributors: Usha Mallik (Contributor) - University of Iowa, Physics and Astronomy
Resource Type: Journal article
Publication Details: Physical review. D, Particles, fields, gravitation and cosmology, Vol.90, 052004
DOI: 10.1103/PhysRevD.90.052004
ISSN: 1550-7998
eISSN: 1550-2368
Language: English
Date published: 01/01/2014
Academic Unit: Physics and Astronomy
Record Identifier: 9984199777202771

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