Two machine learning techniques for jet measurements at the LHCb experiment are presented: a regression-based method for jet-energy calibration and a deep neural network algorithm for jet flavour tagging, distinguishing between b-quark, c-quark, and light parton jets. These techniques are applied to a search for inclusive H→bb¯ and H→cc¯ decays using a LHCb dataset corresponding to an integrated luminosity of 1.6 fb−1. The observed (expected) 95% confidence level upper limits correspond to 6.6 (11.1) times the SM cross-section for the H→bb¯ process, and 1003 (1834) times the SM cross-section for the H→cc¯ process.

Aaij, R., Abdelmotteleb, A., Abellan Beteta, C., Abudinen, F., Ackernley, T., Adefisoye, A., et al. (2026). Machine learning techniques for jet reconstruction at LHCb and application to the search for H→bb¯ and H→cc¯ in s=13 TeV pp collisions. JOURNAL OF HIGH ENERGY PHYSICS, 2026(7) [10.1007/JHEP07(2026)276].

Machine learning techniques for jet reconstruction at LHCb and application to the search for H→bb¯ and H→cc¯ in s=13 TeV pp collisions

Anelli A.;Arnone L.;Borsato M.;Calvi M.;Capelli S.;Carniti P.;Falcao L. N.;Fazzini D.;Gotti C.;Kirsebom V. S.;Malentacca L.;Martinazzoli L.;Martinelli M.;Minotti A.;Moro A.;Pizzichemi M.;Salomoni M.;
2026

Abstract

Two machine learning techniques for jet measurements at the LHCb experiment are presented: a regression-based method for jet-energy calibration and a deep neural network algorithm for jet flavour tagging, distinguishing between b-quark, c-quark, and light parton jets. These techniques are applied to a search for inclusive H→bb¯ and H→cc¯ decays using a LHCb dataset corresponding to an integrated luminosity of 1.6 fb−1. The observed (expected) 95% confidence level upper limits correspond to 6.6 (11.1) times the SM cross-section for the H→bb¯ process, and 1003 (1834) times the SM cross-section for the H→cc¯ process.
Articolo in rivista - Articolo scientifico
Hadron-Hadron Scattering; Higgs Physics; Jet Physics; Jets;
English
29-lug-2026
2026
2026
7
276
none
Aaij, R., Abdelmotteleb, A., Abellan Beteta, C., Abudinen, F., Ackernley, T., Adefisoye, A., et al. (2026). Machine learning techniques for jet reconstruction at LHCb and application to the search for H→bb¯ and H→cc¯ in s=13 TeV pp collisions. JOURNAL OF HIGH ENERGY PHYSICS, 2026(7) [10.1007/JHEP07(2026)276].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/625525
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