12 November 2015 – Andrea Merli was awarded the prize for the first best presentation in Nuclear and Subnuclear Physics at 101st “Congresso Nazionale della Societa’ Italiana di Fisica” in Rome. He presented the results for the search of the asymmetry between heavy baryons and anti-baryons decays in the LHCb experiment, in particular for Lambdab and Xib baryons with bottom quark content. The asymmetry he is looking for would represent the first evidence of CP (charge parity) violation in the baryon sector, another step towards the understanding of the baryon asymmetry of the universe. His work reached the best sensitivity to CP violation in heavy baryon decays to date and will be published on a special issue of Nuovo Cimento.
Andrea just started his PhD studies at our School supported by an INFN PhD fellowship. He is a member of the LHCb experiment at the Large Hadron Collider at CERN, set up to explore what happened after the Big Bang that allowed matter to survive and build the universe we inhabit today. He carries on his activity within the LHCb Milano group that is involved in data analysis and also in the construction of the Upstream Tracker for the LHCb upgrade, a silicon tracking detector positioned upstream of the dipole magnet.