Collider imprint of vector-like leptons in light of anomalous magnetic moment and neutrino data
arxiv(2024)
摘要
We investigate the impact of incorporating anomaly-free representations of
vector-like leptons into the Standard Model, aiming to address longstanding
puzzles related to the anomalous magnetic moments of the muon and electron
while maintaining consistency with neutrino masses and mixings. We find that
among the various representations of vector-like leptons permitted by the
Standard Model gauge symmetry, only weak doublets and singlets offer
satisfactory solutions, all associated with a significantly constrained
parameter space. Our analysis delves into the associated parameter space,
identifying representative benchmark scenarios suitable for collider studies.
These setups yield a distinctive six-lepton signature whose associated signals
can easily be distinguished from the Standard Model background, providing a
clear signal indicative of new physics models featuring vector-like leptons.
Our work hence sheds light on the potential implications of vector-like leptons
in resolving discrepancies inherent to the Standard Model, while also offering
insights into experimental avenues for further exploration.
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