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Bibliographic Details
Main Authors: Abu-Ajamieh, Fayez, Ahriche, Amine, Kumbhakar, Suman, Okada, Nobuchika
Format: Preprint
Published: 2025
Subjects:
Online Access:https://arxiv.org/abs/2507.10525
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Table of Contents:
  • We derive bounds on the flavor-violating (FV) couplings of the $Z$ boson to quarks and present future sensitivity projections. Our analysis shows that the current bounds on the FV couplings are $\mathcal{O}(10^{-9})$ for the $Z$ couplings to $cu$ and $sd$, $\mathcal{O}(10^{-7})$ for $bd$, $\mathcal{O}(10^{-6})$ for $bs$, and $\mathcal{O}(10^{-3})$ for $tu$ and $tc$. Overall, low-energy flavor experiments provide significantly stronger constraints on these FV couplings than current collider searches.