Manifestations of Warped Extra Dimension in Rare Charm Decays and Asymmetries

TL;DR

This paper investigates how warped extra dimension models can influence rare charm decays, revealing potential signatures detectable despite high mass bounds, through various decay channels and asymmetries.

Contribution

It provides a detailed analysis of rare charm decay signatures in warped extra dimension models, highlighting new observable effects and the role of CPT invariance.

Findings

Potential signatures in rare charm decays due to warped extra dimensions

Identification of asymmetries sensitive to new physics

Constraints on new physics from charm decay observations

Abstract

We study the effects of models with a warped extra dimension on rare charm decays. While the new degrees of freedom in these models are bounded above a few TeV, they can leave signatures in rare charm decays with their tiny Standard Model background. We look at several channels with leptons in the final state along with several asymmetries of both kinematical and dynamical nature. CPT invariance is `usable' for analyzing the impacts of new dynamics in $D$ meson decays and in particular, rare decays of charm mesons.