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Please use this identifier to cite or link to this item: http://acervodigital.unesp.br/handle/11449/128984
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dc.contributor.authorFichet, Sylvain-
dc.date.accessioned2015-10-21T20:06:04Z-
dc.date.accessioned2016-10-25T21:08:04Z-
dc.date.available2015-10-21T20:06:04Z-
dc.date.available2016-10-25T21:08:04Z-
dc.date.issued2015-03-30-
dc.identifierhttp://www.worldscientific.com/doi/abs/10.1142/S0217751X15500396-
dc.identifier.citationInternational Journal Of Modern Physics A, v. 30, n. 9, p. 23, 2015.-
dc.identifier.issn0217-751X-
dc.identifier.urihttp://hdl.handle.net/11449/128984-
dc.identifier.urihttp://acervodigital.unesp.br/handle/11449/128984-
dc.description.abstractWe introduce a new kind of likelihood function based on the sequence of moments of the data distribution. Both binned and unbinned data samples are discussed, and the multivariate case is also derived. Building on this approach we lay out the formalism of shape analysis for signal searches. In addition to moment-based likelihoods, standard likelihoods and approximate statistical tests are provided. Enough material is included to make the paper self-contained from the perspective of shape analysis. We argue that the moment-based likelihoods can advantageously replace unbinned standard likelihoods for the search of nonlocal signals, by avoiding the step of fitting Monte Carlo generated distributions. This benefit increases with the number of variables simultaneously analyzed. The moment-based signal search is exemplified and tested in various 1D toy models mimicking typical high-energy signal-background configurations. Moment-based techniques should be particularly appropriate for the searches for effective operators at the LHC.en
dc.description.sponsorshipBrazilian Ministry of Science, Technology and Innovation-
dc.format.extent23-
dc.language.isoeng-
dc.publisherWorld Scientific Publ Co Pte Ltd-
dc.sourceWeb of Science-
dc.subjectNew physics searchesen
dc.subjectstatistical methodsen
dc.titleNew likelihoods for shape analysisen
dc.typeoutro-
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)-
dc.contributor.institutionUniv Fed Rio Grande do Norte-
dc.description.affiliationSao Paulo State Univ, Inst Fis Teor, ICTP South Amer Inst Fundamental Res, Sao Paulo, SP, Brazil-
dc.description.affiliationUniv Fed Rio Grande do Norte, Int Inst Phys, BR-59078400 Natal, RN, Brazil-
dc.description.affiliationUnespSao Paulo State Univ, Inst Fis Teor, ICTP South Amer Inst Fundamental Res, Sao Paulo, SP, Brazil-
dc.identifier.doihttp://dx.doi.org/10.1142/S0217751X15500396-
dc.identifier.wosWOS:000351729100008-
dc.rights.accessRightsAcesso restrito-
dc.relation.ispartofInternational Journal Of Modern Physics A-
Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

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