Strong-weak biadjoints, gluon- W resonances, and new asymmetric LHC production processes
Year: 2025
Type: article
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.
DOI: 10.1103/glnh-zg9n
Authors: Linda M. Carpenter, Katherine Schwind
Institution: The Ohio State University
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: hybrid
Funder: Ohio State University
OpenAlex ID: W4417268014