Searching for degenerate Higgs bosons: a profile likelihood ratio method to test for mass-degenerate states in the presence of censored data and uncertainties

Using the likelihood ratio test statistic, we present a method which can be employed to test the hypothesis of a single Higgs boson using the matrix of measured signal strengths. This method can be applied in the presence of censored data and takes into account uncertainties on the measurements. The...

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Detalles Bibliográficos
Autores principales: David, André, Heikkilä, Jaana, Petrucciani, Giovanni
Lenguaje:eng
Publicado: 2014
Materias:
Particle Physics - Phenomenology
Acceso en línea:https://dx.doi.org/10.1140/epjc/s10052-015-3279-y
http://cds.cern.ch/record/1757373
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author David, André
Heikkilä, Jaana
Petrucciani, Giovanni
author_facet David, André
Heikkilä, Jaana
Petrucciani, Giovanni
author_sort David, André
collection CERN
description Using the likelihood ratio test statistic, we present a method which can be employed to test the hypothesis of a single Higgs boson using the matrix of measured signal strengths. This method can be applied in the presence of censored data and takes into account uncertainties on the measurements. The p-value against the hypothesis of a single Higgs boson is defined from the expected distribution of the test statistic, generated using pseudo-experiments. The applicability of the likelihood-based test is demonstrated using numerical examples with uncertainties and missing matrix elements.
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institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2014
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spelling cern-17573732022-08-10T13:00:19Zdoi:10.1140/epjc/s10052-015-3279-yhttp://cds.cern.ch/record/1757373engDavid, AndréHeikkilä, JaanaPetrucciani, GiovanniSearching for degenerate Higgs bosons: a profile likelihood ratio method to test for mass-degenerate states in the presence of censored data and uncertaintiesParticle Physics - PhenomenologyUsing the likelihood ratio test statistic, we present a method which can be employed to test the hypothesis of a single Higgs boson using the matrix of measured signal strengths. This method can be applied in the presence of censored data and takes into account uncertainties on the measurements. The p-value against the hypothesis of a single Higgs boson is defined from the expected distribution of the test statistic, generated using pseudo-experiments. The applicability of the likelihood-based test is demonstrated using numerical examples with uncertainties and missing matrix elements.Using the likelihood ratio test statistic, we present a method which can be employed to test the hypothesis of a single Higgs boson using the matrix of measured signal strengths. This method can be applied in the presence of incomplete data and takes into account uncertainties on the measurements. The $p$ value against the hypothesis of a single Higgs boson is defined from the expected distribution of the test statistic, generated using pseudo-experiments. The applicability of the likelihood-based test is demonstrated using numerical examples with uncertainties and missing matrix elements.Using the likelihood ratio test statistic, we present a method which can be employed to test the hypothesis of a single Higgs boson using the matrix of measured signal strengths. This method can be applied in the presence of incomplete data and takes into account uncertainties on the measurements. The p-value against the hypothesis of a single Higgs boson is defined from the expected distribution of the test statistic, generated using pseudo-experiments. The applicability of the likelihood-based test is demonstrated using numerical examples with uncertainties and missing matrix elements.arXiv:1409.6132oai:cds.cern.ch:17573732014-09-22
spellingShingle Particle Physics - Phenomenology
David, André
Heikkilä, Jaana
Petrucciani, Giovanni
Searching for degenerate Higgs bosons: a profile likelihood ratio method to test for mass-degenerate states in the presence of censored data and uncertainties
title Searching for degenerate Higgs bosons: a profile likelihood ratio method to test for mass-degenerate states in the presence of censored data and uncertainties
title_full Searching for degenerate Higgs bosons: a profile likelihood ratio method to test for mass-degenerate states in the presence of censored data and uncertainties
title_fullStr Searching for degenerate Higgs bosons: a profile likelihood ratio method to test for mass-degenerate states in the presence of censored data and uncertainties
title_full_unstemmed Searching for degenerate Higgs bosons: a profile likelihood ratio method to test for mass-degenerate states in the presence of censored data and uncertainties
title_short Searching for degenerate Higgs bosons: a profile likelihood ratio method to test for mass-degenerate states in the presence of censored data and uncertainties
title_sort searching for degenerate higgs bosons: a profile likelihood ratio method to test for mass-degenerate states in the presence of censored data and uncertainties
topic Particle Physics - Phenomenology
url https://dx.doi.org/10.1140/epjc/s10052-015-3279-y
http://cds.cern.ch/record/1757373
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AT petruccianigiovanni searchingfordegeneratehiggsbosonsaprofilelikelihoodratiomethodtotestformassdegeneratestatesinthepresenceofcensoreddataanduncertainties

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