Title: Development of MIDDLE, a new method to identify muons from Heavy-Flavour decays in top quark events with the ATLAS detector at LHC.

Deadline: December 12th 2023.

Candidates are required to have a PhD in Physics obtained no more than 6 years ago. Candidates close to their PhD defense can also be considered, if they have a Master Degree in Physics obtained no more than 6 years ago and at least 30 months of research activity after the degree; they will need to obtain a PhD in Physics within 12 months from the start of the new contract.

Post-Doctoral Junior research position of 2 years based on PRIN Italian fundings from the Italian Ministry for Universities and Research.

The goal of the project is to develop and setup a new algorithm called MIDDLE, based on advanced Machine Learning techniques, to identify muons from the decay of Heavy-Flavour hadrons (i.e. hadrons made of beauty or charm quarks) in top-antitop events using data collected by the ATLAS experiment at LHC. This algorithm will be then used to shed light on the dynamics of the b-quark fragmentation and to measure the top quark mass using as proxy the invariant mass of the lepton (electron or muon) coming from the W boson in the t->bW decay and the muon identified by MIDDLE in the b-quark decay chain.           

The position is based in Rome, with possibility to travel to CERN.

The ATLAS Rome Tor Vergata group is involved in the ATLAS experiment since its proposal. In particular, the group has a prominent role both in the construction, maintenance and upgrade of the Resistive Plate Chambers (RPC) detector, in muon performance measurements and in the analysis of the data collected by ATLAS in the areas of Top quark and B-physics.

Applications can be sent on https://reclutamento.dsi.infn.it/ReclutamentoOnline/ , the reference number for the call is 26177

For more information please get in touch with Marco Vanadia: marco.vanadia@roma2.infn.it