Probing New Physics in Charm Couplings with Kaon and Other Hadron Processes

TL;DR

This paper investigates how anomalous charm-W couplings, as potential signs of new physics beyond the standard model, can be constrained through kaon and other hadron processes, impacting current and future experimental searches.

Contribution

It provides a comprehensive analysis of constraints on anomalous charm-W couplings using kaon and hadron decay data, highlighting their significance for new physics searches.

Findings

Constraints on charm-W couplings derived from kaon decay data

Identification of processes sensitive to anomalous couplings

Implications for future experimental tests of new physics

Abstract

It is possible that the low-energy effects of physics beyond the standard model can be parametrized mainly by anomalous couplings of quarks to the W boson. Such couplings can generate potentially significant contributions to various transitions that can be probed by current and future experiments. This work explores constraints on anomalous charm-W couplings from a number of CP-conserving and -violating processes involving the kaon and other flavored hadrons.