Non-Perturbative Effects in $\mu \to e\gamma$

Wouter Dekens, Elizabeth E. Jenkins, Aneesh V. Manohar +1

We compute the non-perturbative contribution of semileptonic tensor operators $(\bar{q}{\sigma }^{\mu \nu }q)(\bar{\ell }{\sigma }_{\mu \nu }\ell )$ to the purely leptonic process $\mu \to e\gamma$ and to the electr…