Internet topology mapping studies utilize large scale topology maps to analyze various characteristics of the Internet. IP alias resolution, the task of mapping IP addresses to their corresponding routers, is an important task in building such topology maps. In this paper, we present a new probe-based IP alias resolution tool called palmtree. Palmtree can be used to complement the existing sche...

ABSTARCT The quark-gluon matter produced in RHIC collisions has high s-quark content [1]. This suggests an equally high probability of Ds mesons formation during the different decay processes. We reconstructed Ds mesons using data from earlier runs; these encompass about ten thousand events. We also investigated the significance of the reconstructed signal as well as the efficiency of the metho...

The IPv6 has experienced a slow progress. However the inexistence of studies in this area does not aid in the understanding of its true evolution. Without the necessary measuring tools it is not possible to assess IPv6’s dissemination and ultimately its success or failure. In this paper an initial study of the IPv6 integration in the Portuguese academic network is provided. This study is part o...

We discuss the design and performance of a threshold Cerenkov counter for identiication of charged hadrons. The radiator is pressurized gas, which is contained in thin-walled cylindrical modules. A mirror system of novel design transports Cerenkov photons to photomultiplier tubes. This system is compact, contains relatively little material, and has a large fraction of active volume. A prototype...

Information Centric Networking (ICN) architectures are currently being investigated to orient the Future Internet towards a content centric paradigm, thus allowing the provisioning of more secure, efficient, and scalable services. In this work, we focus on the Named Data Networking (NDN) proposal to analyze the impact of several routing and forwarding strategies, which play a fundamental role i...

Studying atmospheric neutrino oscillations in the few-GeV range with a multimegaton detector promises to determine the neutrino mass hierarchy. This is the main science goal pursued by the future KM3NeT/ORCA water Cherenkov detector in the Mediterranean Sea. In this paper, the processes that limit the obtainable resolution in both energy and direction in charged-current neutrino events in the O...

INTRODUCTION Protons, electrons, neutrons, neutrinos and even quarks are often featured in news of scientific discoveries. All of these, and a whole "zoo" of others, are tiny sub-atomic particles too small to be seen even with the microscopes. While molecules and atoms are the basic elements of familiar substances that we can see and feel, we have to "look" within atoms in order to learn about ...

We review the software tools and models used in High Energy Physics to describe elementary particle interactions, with emphasis on those which would be most appropriate for application to the field of Cosmic Ray Physics. We discuss the standard Monte Carlo programs in common use and various specialised modifications, ranging from the modelling of very high energy interactions to softer processe...

Real-time track tracking in high energy physics experiments at colliders running luminosity is very challenging for trigger systems. To perform pattern-recognition and fitting online system, the artificial Retina algorithm has been introduced field. can be implemented state of art FPGA devices. Our developments use an iterative way to identify barrel-shape tracker embedded a magnetic field with...

The Large Hadron Collider (LHC) will enter a new phase beginning in 2027 with the upgrade to High Luminosity LHC (HL-LHC). increase number of simultaneous collisions coupled more complex structure single event result each experiment collecting, storing, and processing exabytes data per year. amount generated and/or collected greatly outweighs expected available computing resources. In this pape...