Speaker
Dr
Umberto De Sanctis
Description
Top Physics in ATLAS is one of the crucial sector of the physics
programme of the ATLAS experiment at the LHC. Data collected, are usually
analysed to explore top properties or search for heavy resonances, in final
states characterised by the presence of jets, lepton(s) and missing
transverse momentum. Nevertheless, the abundance of top quarks produced at
LHC gives the possibility to focus also on other specific decay channels,
such as the ones involving the presence of muons (called "soft-muons")
coming from the semileptonic decays of the b-quarks that in turn come from
top/antitop decays. In this seminar I will explore the possibility to use
these "soft-muons" to measure quantities such as the top mass and the amount
of CP violation in the semileptonic b-decays in Run2 data.
