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In the context of the PTOLEMY project, the need for a site with a rather low cosmogenic induced background led us to measure the differential muon flux inside the bunker of Monte Soratte, located about 50~km north of Rome (Italy). The measurement was performed with the Cosmic Ray Cube (CRC), a portable tracking device. The simple operation of the Cosmic Ray Cube was crucial to finalise the measurements, as they were carried out during the COVID-19 lockdown and in a site devoid of scientific equipment. The muon flux measured at the Soratte hypogeum is above two orders of magnitude lower than the flux observed on the surface, suggesting the possible use of the Mt. Soratte bunker for hosting astroparticle physics experiments requiring a low environmental background., Comment: 8 pages, 9 figures

This paper summarizes the current status of the electromagnetic data libraries, reviews recent experimental validation results, highlights open issues and introduces new perspectives for the future of these data libraries taking shape in the context of INFN research. Special emphasis is given to the characteristics of reliability, transparency and openness, along with opportunities for the improvement and the extension of the physics content., Comment: Submitted to Proc. 15th Topical Seminar on Innovative Particle and Radiation Detectors (IPRD19), 14-17 October 2019, Siena, Italy

In the last ten years host virtualization has brought a revolution in the way almost every activity related to information technology is thought of and performed. The use of virtualization for HPC and HTC computing, while eagerly desired, has probably been one of the last steps of this revolution, the performance loss due to the hardware abstraction layer being the cause that slowed down a process that has been much faster in other fields. Nowadays the widespread diffusion of virtualization and of new virtualization techniques seem to have helped breaking this last barrier and virtual host computing infrastructures for HPC and HTC are found in many data centers. In this document the approach adopted at the INFN "Laboratori Nazionali del Gran Sasso" for providing computational resources via a virtual host based computing facility is described. Particular evidence is given to the storage layout, to the middleware architecture and to resource allocation strategies, as these are issues for which a personalized solution was adopted. Other aspects may be covered in the future within other documents.