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Título: | PDF reweighting in the Hessian matrix approach
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Autor/a: | Paukkunen, Hannu
Zurita, María Pía
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Centro/Departamento: | Universidade de Santiago de Compostela. Departamento de Física de Partículas Universidade de Santiago de Compostela. Instituto Galego de Física de Altas Enerxías (IGFAE)
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Palabras chave: | Statistical methods | Parton model | QCD | |
Data: | 2014
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Editor: | Springer
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Cita bibliográfica: | Paukkunen, H., Zurita, P. PDF reweighting in the Hessian matrix approach. J. High Energ. Phys. 2014, 100 (2014). https://doi.org/10.1007/JHEP12(2014)100
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Resumo: | We introduce the Hessian reweighting of parton distribution functions (PDFs).
Similarly to the better-known Bayesian methods, its purpose is to address the compatibil-
ity of new data and the quantitative modifications they induce within an existing set of
PDFs. By construction, the method discussed here applies to the PDF fits that carried
out a Hessian error analysis using a non-zero tolerance 2. The principle is validated by
considering a simple, transparent example. We are also able to establish an agreement with
the Bayesian technique provided that the tolerance criterion is appropriately accounted for
and that a purely exponential Bayesian likelihood is assumed. As a practical example, we
discuss the inclusive jet production at the LHC |
Versión do editor: | https://doi.org/10.1007/JHEP12(2014)100 |
URI: | http://hdl.handle.net/10347/21461
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DOI: | 10.1007/JHEP12(2014)100 |
ISSN: | 1029-8479
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Dereitos: | © 2014 The Authors. This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0), which permits use, duplication, adaptation, distribution, and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made
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