Non-relativistic quantum chromodynamics in parton showers-Reference-Cited by-同舟云学术

Non-relativistic quantum chromodynamics in parton showers

Published:2024-04-25 Issue:4 Volume:84 Page:
ISSN:1434-6052
Container-title:The European Physical Journal C
language:en
Short-container-title:Eur. Phys. J. C

Author:

Cooke Naomi^ORCID,Ilten Philip,Lönnblad Leif,Mrenna Stephen

Abstract

AbstractMeasurements of quarkonia isolation in jets at the Large Hadron Collider (LHC) have been shown to disagree with fixed-order non-relativistic quantum chromodynamics (NRQCD) calculations, even at higher orders. Calculations using the fragmenting jet function formalism are able to better describe data but cannot provide full event-level predictions. In this work we provide an alternative model via NRQCD production of quarkonia in a timelike parton shower. We include this model in the Pythia 8 event generator and validate our parton-shower implementation against analytic forms of the relevant fragmentation functions. Finally, we make inclusive predictions of quarkonia production for the decay of the standard-model Higgs boson.

Funder

National Science Foundation

Fermi Research Alliance, LLC with the U.S. Department of Energy, Office of Science, Office of High Energy Physics.

Swedish Research Council

MCnetITN3 H2020 Marie Curie Initial Training Network

Publisher

Springer Science and Business Media LLC

Link

https://link.springer.com/content/pdf/10.1140/epjc/s10052-024-12760-3.pdf

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