The Effective Field Theory path to New Physics

Programma: PRIN

Responsabile scientifico per il dipartimento: Fabio Maltoni

Struttura principale: DIFA

Data inizio e data fine: dal 28/09/2023 al 28/09/2025

La Teoria Effettiva del Modello Standard: una via verso la Nuova Fisica

Il progetto mira a estendere la sensibilità degli esperimenti di fisica delle particelle alla Nuova Fisica pesante, interpretando globalmente i dati tramite la SMEFT, oltre i limiti della ricerca diretta al LHC e in altri acceleratori.

The Standard Model Effective Field Theory: A Path to New Physics

This project enhances the sensitivity of particle physics experiments to heavy New Physics by globally interpreting data through SMEFT, going beyond the direct reach of the LHC and other current or future facilities.

Abstract

Our understanding of the fundamental laws of Nature, built upon a wealth of experimental data spanning a wide range of scales, isencapsulated in the so-called Standard Model (SM), an extremely successful quantum field theory that describes how matterbehaves at short distances, in terms of elementary constituents and their interactions. Theoretical arguments as well as unexplainedphenomena in cosmological observations, however, point to the existence of New Physics (NP), whose exact nature and energy scaleare currently unknown. A wide and diversified campaign of accurate measurements together with the direct search of new particlesat the Large Hadron Collider, have not provided any clear indication of NP so far.The overarching goal of this proposal in theoretical physics is to obtain a series of conceptual, technical andphenomenological advances to significantly extend the sensitivity to heavy NP of current and future particle physicsexperiments above their direct reach, by interpreting their results in a global way through the SM Effective FieldTheory (SMEFT).