Networks around the world, especially Research and Education (R&E) networks are increasing capacity and striving for higher availability and reliability. However, improved performance is not guaranteed. Network monitoring services often deploy a distributed infrastructure of nodes that perform end-to-end path measurements such as one-way delay, packet losses, and achievable throughput. An examp...

We present the methods for off-line -jet identification developed for the study of decay modes of the neutral SUSY Higgses of mass 140 300 GeV in CMS. Detector response is simulated with a GEANT-based package CMSIM. Involving calorimetry and tracker information, -jet selection criteria allow to reduce the backgrounds to an acceptable level while keeping the selection efficiency at the level of ...

In this paper, we propose a novel approach, called SENATUS, for joint traffic anomaly detection and root-cause analysis. Inspired from the concept of a senate, the key idea of the proposed approach is divided into three stages: election, voting and decision. At the election stage, a small number of senator flows are chosen to represent approximately the total (usually huge) set of traffic flows...

In this talk we will review the major additions and improvements made to the ROOT system in the last 18 months and present our plans for future developments. The additions and improvements range from modifications to the I/O sub-system to allow users to save and restore objects of classes that have not been instrumented by special ROOT macros, to the addition of a geometry package designed for ...

A large BaF2 detector array along with its dedicated CAMAC electronics and VME based data acquisition system has been designed, constructed and installed successfully at VECC, Kolkata for studying high energy γ rays (>8 MeV). The array consists of 162 detector elements. The detectors were fabricated from bare barium fluoride crystals (each measuring 35 cm in length and having cross-sectional ar...

The concept of Virtual Monte Carlo (VMC) has been developed by the ALICE Software Project to allow different Monte Carlo simulation programs to run without changing the user code, such as the geometry definition, the detector response simulation or input and output formats. Recently, the VMC classes have been integrated into the ROOT framework, and the other relevant packages have been separate...

Deep machine learning methods have been studied for the software trigger of future PANDA experiment at FAIR, using Monte Carlo simulated data from GEANT-based detector simulation framework PandaRoot. Ten physics channels that cover main topics, including electromagnetic, exotic, charmonium, open charm, and baryonic reaction channels, investigated four different anti-proton beam momenta. Binary ...

An Aluminum (Al) target of 20cm was used in this simulation to see the eect of incoming photons at lower and higher energies ranging from 10eV −1GeV . A photoelectron is produced when a single electron in the metal completely absorbs a single photon. The kinetic energy with which the photoelectron is emitted from the metal is equal to the photon energy minus an energy that the electron expends ...

Calorimeters with a high granularity are a fundamental requirement of the Particle Flow paradigm. This paper focuses on the prototype of a hadron calorimeter with analog readout, consisting of thirty-eight scintillator layers alternating with steel absorber planes. The scintillator plates are finely segmented into tiles individually read out via Silicon Photomultipliers. The presented results a...

Compton gamma-ray imaging is inherently based on the assumption of gamma rays scattering with free electrons. In reality, the non-zero momentum of target electrons bound in atoms blurs this ideal scattering response in a process known as Doppler broadening. The design and understanding of advanced Compton telescopes thus depends critically on the ability to accurately account for Doppler broade...