13–17 Oct 2025
Physics Department, Milan University
Europe/Rome timezone

Heavy-quark mass effects in Energy-Energy Correlation

15 Oct 2025, 16:35
25m
Sala Consiglio (Physics Department, Milan University)

Sala Consiglio

Physics Department, Milan University

Via Celoria 16, 20133 Milan (Italy)

Speaker

Ugo Aglietti (Rome University & INFN)

Description

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.

Author

Ugo Aglietti (Rome University & INFN)

Presentation materials