%0 Journal Article %J The Lab’s Quarterly %D 2018 %T ECHO CHAMBERS E POLARIZZAZIONE Uno sguardo critico sulla diffusione dell’informazione nei social network %A Costantino Carugno %A Tommaso Radicioni %X Understanding the algorithms that contribute to the formation of our daily reality requires an in-depth look at how information is disseminated in online social networks (OSN). In this article, we will observe how news propagation is restricted by the presence of virtual borders that limit the interaction between users. This phenomenon, known as "echo chamber" formation, has the effect of polarizing the public debate on conflicting positions. Inside an echo chamber, information is not conveyed through a horizontal exchange between users, but due to the presence of like or follower aggregators, called hubs. This analysis will be carried out considering a casestudy in two of the main OSNs: Facebook and Twitter. From the study of user interaction networks we will observe how the algorithmic choices made are crucial to the polarization of the debate around a topic of discussion. %B The Lab’s Quarterly %V 20 %G eng %U https://thelabsquarterly.files.wordpress.com/2019/04/2018.4-the-labs-quarterly-7.-costantino-carugno-tommaso-radicioni-1.pdf %N 4 %& 173 %0 Journal Article %J arXiv preprint arXiv:1805.04307 %D 2018 %T Maximum entropy approach to link prediction in bipartite networks %A Baltakiene, M %A Baltakys, K %A Cardamone, D %A Parisi, F %A Tommaso Radicioni %A Torricelli, M %A de Jeude, JA %A Saracco, F %B arXiv preprint arXiv:1805.04307 %G eng %0 Journal Article %J Journal of Instrumentation %D 2017 %T The calorimeter of the Mu2e experiment at Fermilab %A N. Atanov %A V. Baranov %A J. Budagov %A F. Cervelli %A F. Colao %A M. Cordelli %A G. Corradi %A E. Dané %A Y.I. Davydov %A S. Di Falco %A E. Diociaiuti %A S. Donati %A R. Donghia %A B. Echenard %A K. Flood %A S. Giovannella %A V. Glagolev %A F. Grancagnolo %A F. Happacher %A D.G. Hitlin %A M. Martini %A S. Miscetti %A T. Miyashita %A L. Morescalchi %A P. Murat %A G. Pezzullo %A F. Porter %A F. Raffaelli %A Tommaso Radicioni %A M. Ricci %A A. Saputi %A I. Sarra %A F. Spinella %A G. Tassielli %A V. Tereshchenko %A Z. Usubov %A R.Y. Zhu %X The Mu2e experiment at Fermilab looks for Charged Lepton Flavor Violation (CLFV) improving by 4 orders of magnitude the current experimental sensitivity for the muon to electron conversion in a muonic atom. A positive signal could not be explained in the framework of the current Standard Model of particle interactions and therefore would be a clear indication of new physics. In 3 years of data taking, Mu2e is expected to observe less than one background event mimicking the electron coming from muon conversion. Achieving such a level of background suppression requires a deep knowledge of the experimental apparatus: a straw tube tracker, measuring the electron momentum and time, a cosmic ray veto system rejecting most of cosmic ray background and a pure CsI crystal calorimeter, that will measure time of flight, energy and impact position of the converted electron. The calorimeter has to operate in a harsh radiation environment, in a 10−4 Torr vacuum and inside a 1 T magnetic field. The results of the first qualification tests of the calorimeter components are reported together with the energy and time performances expected from the simulation and measured in beam tests of a small scale prototype. %B Journal of Instrumentation %V 12 %G eng %U https://doi.org/10.1088%2F1748-0221%2F12%2F01%2Fc01061 %R 10.1088/1748-0221/12/01/c01061 %0 Thesis %B University of Pisa %D 2016 %T Calibration and performance optimization of the Electromagnetic Calorimeter in Mu2e %A Tommaso Radicioni %B University of Pisa %G eng %U https://etd.adm.unipi.it/theses/available/etd-09252016-171400/unrestricted/MasterThesis.pdf