Heavy-quark mass effects in Energy-Energy Correlation

by Ugo Aglietti

Wednesday 7 May 2025, 14:00 → 15:00 Europe/Zurich

Aula Caldirola (Università degli Studi di Milano Statale)

Energy-Energy Correlation (EEC) in electron-positron

annihilation into hadrons at high energy, gives the distribution

of the angular distance between hadronic jets in the final state. 

The measure is usually inclusive over quark flavors,

implying that also beauty (charm) quark Correlations 

are included. Given the great accuracy reached in both 

experimental and present theoretical (perturbative) calculations, 

the inclusion of beauty mass effects is highly recommended.

We present a simple formalism to consistently include

heavy-quark mass effects in the Energy-Energy Correlation

in the two-jet region, dominated by large Sudakov logarithms

which need to be resummed to all orders of perturbation theory.