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  • Letter
  • Open Access

Dark sector showers in the Lund jet plane

Timothy Cohen1,2,3, Jennifer Roloff4, and Christiane Scherb5,6

  • 1Theoretical Physics Department, CERN, 1211 Geneva, Switzerland
  • 2Theoretical Particle Physics Laboratory, EPFL, 1015 Lausanne, Switzerland
  • 3Institute for Fundamental Science, University of Oregon, Eugene, Oregon 97403, USA
  • 4Physics Department, Brookhaven National Laboratory, Upton, New York 11973-5000, USA
  • 5Physics Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
  • 6Berkeley Center for Theoretical Physics, University of California, Berkeley, California 94720, USA

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Phys. Rev. D 108, L031501 – Published 4 August, 2023

DOI: https://doi.org/10.1103/PhysRevD.108.L031501

Abstract

We investigate the consequences of models where dark sector quarks could be produced at the LHC, which subsequently undergo a dark parton shower, generating jets of dark hadrons that ultimately decay back to Standard Model hadrons. This yields collider objects that can be nearly indistinguishable from Standard Model jets, motivating the reliance on substructure observables to tease out the signal. However, substructure predictions are sensitive to the details of the incalculable dark hadronization. We show that the Lund jet plane provides a very effective tool for designing observables that are resilient against the unknown impact of dark hadronization on the substructure properties of dark sector jets.

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Information

Phys. Rev. D 108, L031501– Published 4 August, 2023
  • Received 30 March 2023
  • Accepted 4 July 2023
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Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3.

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