Higgs pair production at next-to-next-to-leading logarithmic accuracy at the LHC

Abstract: We perform the threshold resummation for Higgs pair production in the dominant gluon fusion channel to next-to-next-to-leading logarithmic (NNLL) accuracy. The calculation includes the matching to the next-to-next-to-leading order (NNLO) cross section obtained in the heavy top-quark limit,...

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Detalles Bibliográficos
Autores principales: de Florian, D., Mazzitelli, J.
Formato: JOUR
Materias:
Hadronic Colliders
QCD Phenomenology
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_11266708_v2015_n9_p_deFlorian
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_11266708_v2015_n9_p_deFlorian
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spelling todo:paper_11266708_v2015_n9_p_deFlorian2023-10-03T16:07:24Z Higgs pair production at next-to-next-to-leading logarithmic accuracy at the LHC de Florian, D. Mazzitelli, J. Hadronic Colliders QCD Phenomenology Abstract: We perform the threshold resummation for Higgs pair production in the dominant gluon fusion channel to next-to-next-to-leading logarithmic (NNLL) accuracy. The calculation includes the matching to the next-to-next-to-leading order (NNLO) cross section obtained in the heavy top-quark limit, and results in an increase of the inclusive cross section up to 7% at the LHC with centre-of-mass energy E<inf>cm</inf> = 14 TeV, for the choice of factorization and renormalization scales μ<inf>F</inf> = μ<inf>R</inf> = Q, being Q the invariant mass of the Higgs pair system. After the resummation is implemented, we estimate the theoretical uncertainty from the perturbative expansion to be reduced to about ±5.5%, plus ∼ 10% from finite top-mass effects. The resummed cross section turns out to be rather independent of the value chosen for the central factorization and renormalization scales in the usual range (Q/2, Q). © 2015, The Author(s). Fil:de Florian, D. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_11266708_v2015_n9_p_deFlorian
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Hadronic Colliders
QCD Phenomenology
spellingShingle Hadronic Colliders
QCD Phenomenology
de Florian, D.
Mazzitelli, J.
Higgs pair production at next-to-next-to-leading logarithmic accuracy at the LHC
topic_facet Hadronic Colliders
QCD Phenomenology
description Abstract: We perform the threshold resummation for Higgs pair production in the dominant gluon fusion channel to next-to-next-to-leading logarithmic (NNLL) accuracy. The calculation includes the matching to the next-to-next-to-leading order (NNLO) cross section obtained in the heavy top-quark limit, and results in an increase of the inclusive cross section up to 7% at the LHC with centre-of-mass energy E<inf>cm</inf> = 14 TeV, for the choice of factorization and renormalization scales μ<inf>F</inf> = μ<inf>R</inf> = Q, being Q the invariant mass of the Higgs pair system. After the resummation is implemented, we estimate the theoretical uncertainty from the perturbative expansion to be reduced to about ±5.5%, plus ∼ 10% from finite top-mass effects. The resummed cross section turns out to be rather independent of the value chosen for the central factorization and renormalization scales in the usual range (Q/2, Q). © 2015, The Author(s).
format JOUR
author de Florian, D.
Mazzitelli, J.
author_facet de Florian, D.
Mazzitelli, J.
author_sort de Florian, D.
title Higgs pair production at next-to-next-to-leading logarithmic accuracy at the LHC
title_short Higgs pair production at next-to-next-to-leading logarithmic accuracy at the LHC
title_full Higgs pair production at next-to-next-to-leading logarithmic accuracy at the LHC
title_fullStr Higgs pair production at next-to-next-to-leading logarithmic accuracy at the LHC
title_full_unstemmed Higgs pair production at next-to-next-to-leading logarithmic accuracy at the LHC
title_sort higgs pair production at next-to-next-to-leading logarithmic accuracy at the lhc
url http://hdl.handle.net/20.500.12110/paper_11266708_v2015_n9_p_deFlorian
work_keys_str_mv AT defloriand higgspairproductionatnexttonexttoleadinglogarithmicaccuracyatthelhc
AT mazzitellij higgspairproductionatnexttonexttoleadinglogarithmicaccuracyatthelhc
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