Constraints of unparticle physics parameters from $K^0-\bar K^0$ mixing

TL;DR

This paper investigates how unparticle physics could affect $K^0-ar K^0$ mixing and derives constraints on unparticle parameters using current experimental data.

Contribution

It provides the first detailed analysis of unparticle effects on kaon mixing and establishes bounds on unparticle parameters from experimental measurements.

Findings

Constraints on unparticle parameters from $K^0-ar K^0$ mixing data

Unparticle physics can induce significant FCNC effects at tree level

Limits on unparticle scale and coupling strengths

Abstract

The neutral kaon meson mixing plays an important role in test of the Standard Model (SM) and new physics beyond it. Scale invariant unparticle physics induces a flavor changing neutral current (FCNC) transition of $K^0-\bar K^0$ oscillation at the tree level. In this study, we investigate the scale invariant unparticle physics effects on the $K^0-\bar K^0$ mixing. Based on the current experimental data, we give constraints of $K^0-\bar K^0$ mixing on the unparticle parameters.