Seminars

Lucio Cerrito - Precision Measurement of the Top Quark Mass with the ATLAS Experiment

Europe/Rome
Aula B

Aula B

Via della Vasca Navale 84, 00146 Roma
Description

 

The precision on the measurement of the mass of the top quark has reached the threshold of 500 MeV, or about 0.3%. This is not an easy challenge, neither on the experimental front, for a particle whose final state includes jets and neutrinos, nor from the theory point of view given a strongly interacting particle. Yet the high precision is needed because the top quark enters much of the dynamics in the standard model and has an important relationship with the Higgs boson. This seminar will discuss the challenges of the top quark mass determination, and the recent advancements with the ATLAS experiment including direct measurements from the top decay and indirect determination from cross sections.

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