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  • Open Access

Strong-weak biadjoints, gluon-W resonances, and new asymmetric LHC production processes

Linda M. Carpenter* and Katherine Schwind†

  • *Contact author: lmc@physics.osu.edu
  • †Contact author: schwind.44@osu.edu
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Phys. Rev. D 113, 035015 – Published 17 February, 2026

DOI: https://doi.org/10.1103/glnh-zg9n

Abstract

We study a novel production and decay mechanism for a biadjoint spin zero particle in the (8, 3, 0) representation of the Standard Model gauge groups. This work is part of a series studying new production processes for exotic particles in higher representations of Standard Model color and weak charge. Here, we study a specific new dimension 5 effective operator model which couples an exotic biadjoint scalar field to the SU(3) and SU(2) field strength tensors. The W-gluon resonant decay of the charged component of this new exotic field is explored. We discuss LHC production modes of both the charged and neutral biadjoint states and find a new single production mode for the charged state. This is the dominant LHC production mode for TeV-scale masses. We introduce a new HL-LHC search in which a single biadjoint is produced in association with a hard forward quark jet from asymmetric W-gluon fusion. This search yields a 5-sigma discovery potential for biadjoint masses up to 3 TeV for 10 TeV scalar effective operator cutoffs. We also find 2-sigma sensitivity at the HL-LHC for biadjoint masses up to 4 TeV and effective cutoffs in the 15 TeV range for the full 3 inverse atto-barn dataset.

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Phys. Rev. D 113, 035015– Published 17 February, 2026
  • Received 28 June 2025
  • Accepted 20 November 2025
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