Dijet mass up to four loops with(out) $${{\varvec{k}}}_{\varvec{t}}$$ k t clustering

Abstract We compute the invariant mass of dijets produced in $$e^+ e^-$$ e + e - annihilation processes up to four loops in perturbation theory for both anti- $$k_t$$ k t and $$k_t$$ k t jet algorithms. The calculations, performed within the eikonal approximation and employing strong-energy ordering...

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Main Author: K. Khelifa-Kerfa
Format: Article
Language:English
Published: SpringerOpen 2025-02-01
Series:European Physical Journal C: Particles and Fields
Online Access:https://doi.org/10.1140/epjc/s10052-025-13837-3
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author K. Khelifa-Kerfa
author_facet K. Khelifa-Kerfa
author_sort K. Khelifa-Kerfa
collection DOAJ
description Abstract We compute the invariant mass of dijets produced in $$e^+ e^-$$ e + e - annihilation processes up to four loops in perturbation theory for both anti- $$k_t$$ k t and $$k_t$$ k t jet algorithms. The calculations, performed within the eikonal approximation and employing strong-energy ordering, capture the full analytic structure of the leading Abelian and non-Abelian non-global logarithms, including full colour and jet-radius dependence. We evaluate the significance of these logarithms and the convergence of the four loop perturbative expansion by comparing with all-orders numerical results.
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institution Kabale University
issn 1434-6052
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publishDate 2025-02-01
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series European Physical Journal C: Particles and Fields
spelling doaj-art-ce718da50a354a7db90137930f0cea402025-02-09T12:51:40ZengSpringerOpenEuropean Physical Journal C: Particles and Fields1434-60522025-02-0185211810.1140/epjc/s10052-025-13837-3Dijet mass up to four loops with(out) $${{\varvec{k}}}_{\varvec{t}}$$ k t clusteringK. Khelifa-Kerfa0Department of Physics, Faculty of Science and Technology, Relizane UniversityAbstract We compute the invariant mass of dijets produced in $$e^+ e^-$$ e + e - annihilation processes up to four loops in perturbation theory for both anti- $$k_t$$ k t and $$k_t$$ k t jet algorithms. The calculations, performed within the eikonal approximation and employing strong-energy ordering, capture the full analytic structure of the leading Abelian and non-Abelian non-global logarithms, including full colour and jet-radius dependence. We evaluate the significance of these logarithms and the convergence of the four loop perturbative expansion by comparing with all-orders numerical results.https://doi.org/10.1140/epjc/s10052-025-13837-3
spellingShingle K. Khelifa-Kerfa
Dijet mass up to four loops with(out) $${{\varvec{k}}}_{\varvec{t}}$$ k t clustering
European Physical Journal C: Particles and Fields
title Dijet mass up to four loops with(out) $${{\varvec{k}}}_{\varvec{t}}$$ k t clustering
title_full Dijet mass up to four loops with(out) $${{\varvec{k}}}_{\varvec{t}}$$ k t clustering
title_fullStr Dijet mass up to four loops with(out) $${{\varvec{k}}}_{\varvec{t}}$$ k t clustering
title_full_unstemmed Dijet mass up to four loops with(out) $${{\varvec{k}}}_{\varvec{t}}$$ k t clustering
title_short Dijet mass up to four loops with(out) $${{\varvec{k}}}_{\varvec{t}}$$ k t clustering
title_sort dijet mass up to four loops with out varvec k varvec t k t clustering
url https://doi.org/10.1140/epjc/s10052-025-13837-3
work_keys_str_mv AT kkhelifakerfa dijetmassuptofourloopswithoutvarveckvarvectktclustering