Search for Higgs Boson Pair Production in the γγb b ¯ Final State Using pp Collision Data at √s = 8 TeV from the ATLAS Detector

Searches are performed for resonant and nonresonant Higgs boson pair production in the γγbb¯ final state using 20 fb-1 of proton-proton collisions at a center-of-mass energy of 8 TeV recorded with the ATLAS detector at the CERN Large Hadron Collider. A 95% confidence level upper limit on the cross s...

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Publicado:	2015
Materias:	High energy physics Photons Protons Tellurium compounds ATLAS detectors Branching ratio Confidence levels Large Hadron Collider Pair production Proton proton collisions Standard deviation Upper limits Bosons
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00319007_v114_n8_p_Aad http://hdl.handle.net/20.500.12110/paper_00319007_v114_n8_p_Aad
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_00319007_v114_n8_p_Aad
record_format	dspace
spelling	paper:paper_00319007_v114_n8_p_Aad2023-06-08T14:58:15Z Search for Higgs Boson Pair Production in the γγb b ¯ Final State Using pp Collision Data at √s = 8 TeV from the ATLAS Detector High energy physics Photons Protons Tellurium compounds ATLAS detectors Branching ratio Confidence levels Large Hadron Collider Pair production Proton proton collisions Standard deviation Upper limits Bosons Searches are performed for resonant and nonresonant Higgs boson pair production in the γγbb¯ final state using 20 fb-1 of proton-proton collisions at a center-of-mass energy of 8 TeV recorded with the ATLAS detector at the CERN Large Hadron Collider. A 95% confidence level upper limit on the cross section times branching ratio of nonresonant production is set at 2.2 pb, while the expected limit is 1.0 pb. The difference derives from a modest excess of events, corresponding to 2.4 standard deviations from the background-only hypothesis. The limit observed in the search for a narrow X→hh resonance ranges between 0.7 and 3.5 pb as a function of the resonance mass. © 2015 CERN. © 2015 CERN, for the ATLAS Collaboration 2015 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00319007_v114_n8_p_Aad http://hdl.handle.net/20.500.12110/paper_00319007_v114_n8_p_Aad
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	High energy physics Photons Protons Tellurium compounds ATLAS detectors Branching ratio Confidence levels Large Hadron Collider Pair production Proton proton collisions Standard deviation Upper limits Bosons
spellingShingle	High energy physics Photons Protons Tellurium compounds ATLAS detectors Branching ratio Confidence levels Large Hadron Collider Pair production Proton proton collisions Standard deviation Upper limits Bosons Search for Higgs Boson Pair Production in the γγb b ¯ Final State Using pp Collision Data at √s = 8 TeV from the ATLAS Detector
topic_facet	High energy physics Photons Protons Tellurium compounds ATLAS detectors Branching ratio Confidence levels Large Hadron Collider Pair production Proton proton collisions Standard deviation Upper limits Bosons
description	Searches are performed for resonant and nonresonant Higgs boson pair production in the γγbb¯ final state using 20 fb-1 of proton-proton collisions at a center-of-mass energy of 8 TeV recorded with the ATLAS detector at the CERN Large Hadron Collider. A 95% confidence level upper limit on the cross section times branching ratio of nonresonant production is set at 2.2 pb, while the expected limit is 1.0 pb. The difference derives from a modest excess of events, corresponding to 2.4 standard deviations from the background-only hypothesis. The limit observed in the search for a narrow X→hh resonance ranges between 0.7 and 3.5 pb as a function of the resonance mass. © 2015 CERN. © 2015 CERN, for the ATLAS Collaboration
title	Search for Higgs Boson Pair Production in the γγb b ¯ Final State Using pp Collision Data at √s = 8 TeV from the ATLAS Detector
title_short	Search for Higgs Boson Pair Production in the γγb b ¯ Final State Using pp Collision Data at √s = 8 TeV from the ATLAS Detector
title_full	Search for Higgs Boson Pair Production in the γγb b ¯ Final State Using pp Collision Data at √s = 8 TeV from the ATLAS Detector
title_fullStr	Search for Higgs Boson Pair Production in the γγb b ¯ Final State Using pp Collision Data at √s = 8 TeV from the ATLAS Detector
title_full_unstemmed	Search for Higgs Boson Pair Production in the γγb b ¯ Final State Using pp Collision Data at √s = 8 TeV from the ATLAS Detector
title_sort	search for higgs boson pair production in the γγb b ¯ final state using pp collision data at √s = 8 tev from the atlas detector
publishDate	2015
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00319007_v114_n8_p_Aad http://hdl.handle.net/20.500.12110/paper_00319007_v114_n8_p_Aad
_version_	1768546290471272448

Search for Higgs Boson Pair Production in the γγb b ¯ Final State Using pp Collision Data at √s = 8 TeV from the ATLAS Detector

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