Theoretical uncertainties on the top-quark mass determination

Speaker: 
Gennaro Corcella (INFN LNF)
Event Type: 
Seminar
Location: 
Aula Caldirola

The top quark is the heaviest elementary particle and its mass plays a crucial role in Standard Model phenomenology and electroweak symmetry breaking. I will discuss the main sources of theoretical error in the top mass reconstruction at hadron colliders, according to the traditional techniques, such as the template and matrix-element methods, as well as newer strategies, relying on kinematic endpoints or purely leptonic observables. Special attention is paid to the relation between the measured mass and theoretical definitions, such as the pole mass, and at the uncertainty due to bottom-quark fragmentation in top decays and hadronization effects. I will briefly review the perspectives on the top mass determination at high-energy and luminosity LHC and at future lepton colliders.

Contact address

Dipartimento di Fisica
Università degli Studi di Milano
Via Celoria, 16 I-20133 Milano (Italy)
Tel. +39 02 503 17279 - Fax. 17480

Unimi

INFN Milano