Muons are particles with a spin of ½ that can be implanted into a wide range of condensed
matter materials to act as a local probe of the surrounding atomic environment …

Neutrino masses are evidence of lepton flavor violation, but no violation in the interactions
among the charged leptons has been observed yet. Many models of Physics Beyond the …

A bstract Leptoquarks are prime candidates for explaining the intriguing hints for lepton
flavour universality violation. In particular, the SU (2) L doublet of scalar leptoquarks S 2 is …

A bstract We analyse the effects of Dirac and Majorana neutrinos on leptonic decays of
muon and tau leptons using the most general four-lepton effective interaction Hamiltonian of …

We analyze the flavor violating muon decay μ→ e χ, where χ is a massive gauge boson, with
emphasis in the regime where χ is ultralight. We first study this process from an effective field …

Muons are puzzling physicists since their discovery when they were first thought to be the
meson predicted by Yukawa to mediate the strong force. The recent result at Fermilab on the …

A bstract Hadronic light-by-light scattering is one of the virtual processes that causes the
gyromagnetic factor g of the muon to deviate from the value of two predicted by Dirac's …

Abstract Working within the Standard Model effective field theory approach, we examine the
possibility to test charged lepton flavour violating (cLFV) new physics (NP) by angular …

Upcoming experiments will improve the sensitivity to μ→ e processes by several orders of
magnitude, and could observe lepton flavour-changing contact interactions for the first time …

The muonium-to-antimuonium transition experiment is about to be updated. Notably, the
experiment at Japan Proton Accelerator Research Complex (J-PARC) can explore the …