TY  - JOUR
PB  - SciPost Foundation
DO  - 10.21468/SciPostPhys.18.1.004
TI  - Fractionally charged particles at the energy frontier: The SM gauge group and one-form global symmetry
PY  - 2025/01/07
UR  - https://scipost.org/SciPostPhys.18.1.004
JF  - SciPost Physics
JA  - SciPost Phys.
VL  - 18
IS  - 1
SP  - 004
A1  - Koren, Seth
AU  - Martin, Adam
AB  - The observed Standard Model is consistent with the existence of vector-like species with electric charge a multiple of $e/6$. The discovery of a fractionally charged particle would provide nonperturbative information about Standard Model physics, and furthermore rule out some or all of the minimal theories of unification. We discuss the phenomenology of such particles and focus particularly on current LHC constraints, for which we reinterpret various searches to bound a variety of fractionally charged representations. We emphasize that in some circumstances the collider bounds are surprisingly low or nonexistent, which highlights the discovery potential for these species which have distinctive signatures and important implications. We additionally offer pedagogical discussions of the representation theory of gauge groups with different global structures, and separately of the modern framework of Generalized Global Symmetries, either of which serves to underscore the bottom-up importance of these searches.
ER  -

@Article{10.21468/SciPostPhys.18.1.004,
	title={{Fractionally charged particles at the energy frontier: The SM gauge group and one-form global symmetry}},
	author={Seth Koren and Adam Martin},
	journal={SciPost Phys.},
	volume={18},
	pages={004},
	year={2025},
	publisher={SciPost},
	doi={10.21468/SciPostPhys.18.1.004},
	url={https://scipost.org/10.21468/SciPostPhys.18.1.004},
}