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arXiv · 2502.14162

Untangling New Physics in Single Resonant Top Quarks

Krish Wu·Brandon Sun·Nitish Polishetty·Justin Kline·Max Fieg·Daniel Whiteson
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Abstract

Collisions of particles at the energy frontier can reveal new particles and forces via localized excesses. However, the initial observation may be consistent with a large variety of theoretical models, especially in sectors with new top quark partners, which feature a rich set of possible underlying interactions. We explore the power of the LHC dataset to distinguish between models of the singly produced heavy top-like quark which interacts with the Standard Model through an electromagnetic form factor. We study the heavy top decay to a top quark and a virtual photon which produces a pair of fermions, propose a technique to disentangle the models, and calculate the expected statistical significance to distinguish between various hypotheses.

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Krish Wu, Brandon Sun, Nitish Polishetty, Justin Kline, Max Fieg, Daniel Whiteson. 2025-02-20. Untangling New Physics in Single Resonant Top Quarks. https://arxiv.org/abs/2502.14162

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