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Peer-reviewedCC BY 4.0Journal of High Energy Physics

Logarithmically-accurate final-state showers with massive quarks

  • Melissa van Beekveld1
  • Silvia Ferrario Ravasio2
  • Alba Soto-Ontoso3
  • Gregory Soyez4
  • Rob Verheyen5
5 affiliations
  1. 1Nikhef, Theory Group
  2. 2Università di Torino, and INFN, Sezione di Torino
  3. 3Universidad de Granada
  4. 4Université Paris-Saclay, CNRS, CEA, Institut de physique théorique
  5. 5University College London
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Abstract

A bstract : We formulate PanScales final-state showers that account for quark masses and achieve next-to-leading logarithmic accuracy, while preserving the original accuracy of the showers for observables where the mass of the quarks is irrelevant. We validate the accuracy of the shower algorithms by performing fixed-order tests up to second order in the strong coupling constant, and all-order comparisons to (semi-)analytic resummed calculations for a series of observables, including Lund-tree shapes, non-global energy flows and Lund sub-jet multiplicities. We also include some phenomenological studies using LEP data.

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Cite

BibTeXRIS
BibTeX
@article{beekveld2026logarithmicallyaccurate,
  title = {{Logarithmically-accurate final-state showers with massive quarks}},
  author = {Melissa van Beekveld and Silvia Ferrario Ravasio and Alba Soto-Ontoso and Gregory Soyez and Rob Verheyen},
  journal = {Journal of High Energy Physics},
  year = {2026},
  month = oct,
  doi = {10.1007/jhep10(2026)161},
  url = {https://link.springer.com/article/10.1007/JHEP10(2026)161},
  note = {CC BY 4.0},
}
RIS
TY  - JOUR
TI  - Logarithmically-accurate final-state showers with massive quarks
AU  - Melissa van Beekveld
AU  - Silvia Ferrario Ravasio
AU  - Alba Soto-Ontoso
AU  - Gregory Soyez
AU  - Rob Verheyen
PY  - 2026
DA  - 2026/10/15
JO  - Journal of High Energy Physics
DO  - 10.1007/jhep10(2026)161
UR  - https://link.springer.com/article/10.1007/JHEP10(2026)161
AB  - A bstract : We formulate PanScales final-state showers that account for quark masses and achieve next-to-leading logarithmic accuracy, while preserving the original accuracy of the showers for observables where the mass of the quarks is irrelevant. We validate the accuracy of the shower algorithms by performing fixed-order tests up to second order in the strong coupling constant, and all-order comparisons to (semi-)analytic resummed calculations for a series of observables, including Lund-tree shapes, non-global energy flows and Lund sub-jet multiplicities. We also include some phenomenological studies using LEP data.
SN  - 1029-8479
ER  -