Novel and updated bounds on flavor-violating Z interactions in the quark sector

International Journal of Modern Physics A 2026 Open access

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Authors: Fayez Abu-Ajamieh, Amine Ahriche, Suman Kumbhakar, Nobuchika Okada
DOI: 10.1142/s0217751x26500569
Cited by: 0
References: 58

Abstract

In this paper, 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 [Formula: see text] for the Z couplings to [Formula: see text] and [Formula: see text], [Formula: see text] for [Formula: see text], [Formula: see text] for [Formula: see text], and [Formula: see text] for [Formula: see text] and [Formula: see text]. Overall, low-energy flavor experiments provide significantly stronger constraints on these FV couplings than current collider searches.

Fields of Study & Subjects

High-Energy Particle Collisions Research Particle physics theoretical and experimental studies Quantum Chromodynamics and Particle Interactions

Publication details

Journal / source
International Journal of Modern Physics A
Publisher
World Scientific Pub Co Pte Ltd
Volume
41
Issue
08
Publication date
24 January 2026
Language
EN