Higgs decay to two photons at one-loop in the SMEFT

Abstract

We present the calculation of the $\mathrm{CP}$ conserving contributions to $\Gamma (h\to \gamma \gamma )$, from dimension six operators at one-loop order, in the linear Standard Model Effective Field Theory. We discuss the impact of these corrections on interpreting current and future experimental bounds on this decay.

Comments: 6pp, 1 fig. V4: Typos corrected and comment added