Speaker
Description
With exciting future collider programs, such as the FCCee, on the horizon, interpretation of precision measurements at these facilities requires us to have already constrained the Standard Model parameters to a high degree of precision. Collider measurements impacted by strong interactions such as the strong coupling constant and the top quark mass remain bottlenecks in this program. In this talk, we report on recent progress in overcoming these challenges using energy energy correlators (EECs).
In EECs measured on heavy unstable resonances such as the $Z$, $W$, $H$ and the top, the resonance mass $M$ introduces an additional scale, generating a sharp peak at angles $\sim M/p_T^{\rm jet}$. For heavy bosons exhibiting a two-body decay, such as the $Z$, this feature can be computed directly by boosting the EEC spectrum measured in $e^+e^- \rightarrow {\rm hadrons}$ at the $Z$ pole, where the peak arises from boosting the well-studied Sudakov factorization governing the back-to-back limit of the two-point correlator. Beyond just a theoretical excericse, this can be pushed even further to devise a new competitive collider measurement of the bottom quark mass by exploiting the dead-cone feature of inclusive bottom decays in boosted $Z$ jets, while at the same time laying the theoretical foundation for the top mass determination using EECs.