Comment on "the decoupling of heavy sneutrinos in low-scale seesaw models"

TL;DR

This paper clarifies that previous claims of an error in evaluating heavy sneutrino contributions in low-scale seesaw models are incorrect, reaffirming the decoupling behavior of heavy sneutrinos in lepton-flavour-violating processes.

Contribution

The authors defend their earlier results, demonstrating the correct decoupling of heavy sneutrinos in supersymmetric low-scale seesaw models against recent claims of errors.

Findings

No flaw in the original analytical and numerical results.

Heavy sneutrinos exhibit expected decoupling in Z-penguin graphs.

Reaffirmation of the validity of previous calculations.

Abstract

The authors of a recent communication [arXiv:1312.5318] claim to have traced an error in the existing literature regarding the evaluation of the one-loop right-handed sneutrino contributions to lepton-flavour-violating observables in supersymmetric low-scale seesaw models. In this short note, we emphasize that contrary to those authors' claim, our paper [arXiv:1212.5939] contains no such a flaw, and both our analytical and numerical results exhibit the expected decoupling property of the heavy sneutrinos in the Z-penguin graphs.