Indirect support for the evidence of neutrinoless double beta decay reported recently, is obtained by analysis of other Ge double beta experiments, which yield independent information on the background in the region of Qββ . Some statistical features as well as background simulations with GEANT 4 of the HEIDELBERG-MOSCOW experiment are discussed which disprove recent criticism. Spokesman of HEI...

This paper describes an efficient way to implement managed bandwidth services. The proposed solution is based on MPLS technology and especially with the creation of virtual private networks. The virtual private networks will be layer 3 VPNs (IP VPNs) and are described all the mechanisms and the MPLS features that are necessary for the MBS service implementation. The paper also describes how the...

An accelerator beam experiment was performed using a low-energy antiproton beam to measure the antiproton detection efficiency of the BESS detector. Measured and calculated efficiencies derived from the BESS Monte Carlo simulation based on geant/gheisha showed good agreement. With the detailed verification of the BESS simulation, results demonstrate that the relative systematic error of detecti...

The time to simulate pp collisions in the ATLAS detector is largely dominated by the showering of electromagnetic particles in the heavy parts of the detector, especially the electromagnetic barrel and endcap calorimeters. Two procedures have been developed to accelerate the processing time of electromagnetic particles in these regions: (1) a fast shower parameterisation and (2) a frozen shower...

Les auteurs rapportent chez deux nourrissons, l'etude anatomo-clinique d'un cas de kystes alveolaires multiples,et d'un cas d'emphyseme lobaire congenital bilateral.Le troisieme cas concerne un kyste bronchog6nique du poumon gauche,decouvert a l'autopsie d'un nouveau-ne. Dans le quatrieme cas,un emphyseme geant du lobe superieur gauche,decouvert dans un contexte infectieux,a l'age de neuf mois,...

In the course of its operation, the Volcano Ranch array collected data on the lateral distribution of showers produced by cosmic rays at energies above 10 eV. From these data very precise measurements of the steepness of the lateral distribution function, characterized by the η parameter, were made. The current availability of sophisticated hadronic interaction models has prompted a reinterpret...

This letter presents the results of a study of the response of a test CMOS sensor with a radiation tolerant pixel cell design to 80 keV and 100 keV electrons. The point spread function is measured to be (13.0 ± 1.7) μm at 100 keV and (12.1 ± 1.6) μm at 80 keV, for 20 μm pixels. Results agree well with values predicted by a Geant-4 and dedicated charge collection simulation.

We have developed a detailed Monte Carlo simulation program for the Belle TOF system. Based on GEANT simulation, it takes account of all physics processes in the TOF scintillation counters and readout electronics. The simulation reproduces very well the performance of the Belle TOF system, including the dE/dx response, the time walk effect, the time resolution, and the hit efficiency due to bea...

The FastCaloSim calorimeter simulation was developed to provide a reasonably accurate but still fast simulation of the ATLAS calorimeter system. Parameterizations of electromagnetic and hadronic calorimeter showers are used to deposit particle energies in the detailed calorimeter structure. In the present document a short overview of the fast calorimeter simulation principle is presented. This ...

High Energy Physics (HEP) needs a huge amount of computing resources. In addition data acquisition, transfer, and analysis require a well developed infrastructure too. In order to prove new physics disciplines it is required to higher the luminosity of the accelerator facilities, which produce more-andmore data in the experimental detectors. Both testing new theories and detector R&D are based ...