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Heavy Flavour Jet Substructure

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arxiv 2410.05415 v2 pith:X23SB4FT submitted 2024-10-07 hep-ph

Prasanna K. Dhani , Oleh Fedkevych , Andrea Ghira , Simone Marzani , Gregory Soyez This is my paper · ORCID
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abstract

We present a comprehensive study of energy correlation functions and jet angularities for heavy-flavour QCD jets. In particular, we discuss the possibility of using these observables to expose the dead cone effect, i.e. the suppression of collinear QCD radiation around massive quarks, and to investigate the sensitivity of different observable definitions to the presence of quark masses. Our calculations are presented as all-order resummed predictions at next-to-leading-logarithmic accuracy, matched to (partial) fixed-order results to obtain a better description of the transition around the dead cone threshold. We also compare our analytic results with Pythia, Herwig and Sherpa Monte Carlo predictions to estimate the impact of non-perturbative contributions such as hadronisation, underlying events and $B$-hadron decays.

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Forward citations

Cited by 7 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Extracting Essential Non-perturbative Information in Jet Invariant Mass via the Bayesian Analysis

    hep-ph 2025-07 conditional novelty 7.0 of 10

    A new 3D non-perturbative jet-mass model, fitted to pp data, separates hadronization, ISR, and underlying-event effects and correctly predicts e+e- jet mass data.

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    Merely mentioning MRI availability in the prompt drives 70-80% of apparent multimodal F1 gains in clinical VLMs, even when no imaging is present.

  3. Heavy Quark Pair Energy Correlators: From Profiling Partonic Splittings to Probing Heavy-Flavor Fragmentation

    hep-ph 2025-08 conditional novelty 6.0 of 10

    Heavy-flavor energy-energy correlators isolate the gluon to heavy quark-antiquark splitting and are predicted to be sensitive to medium modifications and anisotropic quark-gluon plasma structure.

  4. Bridging massive and massless schemes for soft gluon resummation in heavy-flavour production in $e^+e^-$ collisions

    hep-ph 2024-12 conditional novelty 6.0 of 10

    The paper computes the O(alpha_s) soft-limit constants that interpolate between massive and massless scheme resummations, raising the accuracy of heavy-flavour fragmentation predictions from NLL to NLL'.

  5. Heavy quark mass effects in the Energy-Energy Correlation in the back-to-back region

    hep-ph 2024-12 conditional novelty 6.0 of 10

    Massive quark Sudakov resummation for e+e- energy-energy correlations is extended to NNLL accuracy, and the NLL dead cone angle is enlarged by sqrt(e).

  6. Heavy Flavor Jet Substructure at Lepton Colliders

    hep-ph 2025-02 conditional novelty 4.0 of 10

    NLL-accurate predictions for heavy-flavor energy correlation functions and jet angularities in e+e- collisions show all tested Monte Carlo generators overestimate the dead-cone suppression.

  7. On the quarkonium-in-jet collinear fragmentation at moderate-to-large transverse momentum

    hep-ph 2024-12 conditional novelty 4.0 of 10

    A preliminary NLO set of quarkonium fragmentation functions, NRFF1.0, is introduced and proposed as input for quarkonium-in-jet fragmentation studies.

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