Theoretical perspective on the NA62 physics program

TL;DR

This paper reviews the theoretical motivations and potential physics targets of the NA62 experiment, focusing on rare kaon decays and their significance for understanding fundamental physics.

Contribution

It provides a comprehensive theoretical perspective on the NA62 physics program, highlighting possible decay channels and their implications for new physics searches.

Findings

NA62 aims to measure the rare K+ ---> pi+ nu nu bar decay.

The experiment also considers neutral rare decays like KL ---> pi0 nu nu bar.

Potential targets include semileptonic, radiative, and lepton-flavor violating decays.

Abstract

Soon the NA62 experiment will start looking for the rare K+ ---> pi+ nu nu bar decay. In this talk, its theoretical interests, together with those of the neutral rare decays KL ---> pi0 nu nu bar, KL ---> pi0 e+ e-, and KL ---> pi0 mu+ mu-, are briefly reviewed. Then, other possible targets for NA62 are discussed, among which the dominant semileptonic decays, the radiative decays, as well as the lepton-flavor violating decays.