Searching for Leptoquarks at Future Muon Colliders
Pouya Asadi, Rodolfo Capdevilla, Cari Cesarotti, Samuel Homiller

TL;DR
Future muon colliders at 3 and 14 TeV can significantly extend the search for vector leptoquarks, surpassing current experimental limits and covering parameter space relevant to B meson decay anomalies.
Contribution
This study evaluates the discovery potential of muon colliders for vector leptoquarks across various energies and flavor scenarios, highlighting their ability to probe beyond current limits.
Findings
Muon colliders can probe leptoquark masses up to ten times the collider energy.
They can explore parameter regions inaccessible to flavor experiments.
A 3 TeV collider can cover all parameter space relevant to B decay anomalies.
Abstract
A high energy muon collider can provide new and complementary discovery potential to the LHC or future hadron colliders. Leptoquarks are a motivated class of exotic new physics models, with distinct production channels at hadron and lepton machines. We study a vector leptoquark model at a muon collider with TeV within a set of both UV and phenomenologically motivated flavor scenarios. We compute which production mechanism has the greatest reach for various values of the leptoquark mass and the coupling between leptoquark and Standard Model fermions. We find that we can probe leptoquark masses up to an order of magnitude beyond with perturbative couplings. Additionally, we can also probe regions of parameter space unavailable to flavor experiments. In particular, all of the parameter space of interest to explain recent low-energy anomalies in B meson decays…
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