The leakage current increase of silicon detectors irradiated with fast neutrons was measured in the fluence range from 10 to 10 cm for a wide range of different starting material. The oxygen concentration in the investigated silicon varied from 9×10 cm to below 2×10 cm and the carbon concentration from 2×10 cm to below 5×10 cm. Furthermore the resistivity differed from 100 Ωcm to 20 KΩcm for th...

We review a recent global analysis of inclusive single-charged-hadron production in high-energy colliding-beam experiments, which is performed at nextto-leading order (NLO) in the parton model of quantum chromodynamics endowed with nonperturbative fragmentation functions (FFs). Comparisons of pp data from CERN SppS and the Fermilab Tevatron and γp data from DESY HERA with the corresponding NLO ...

The determination of magnitudes of basic parameters of the high energy elastic scattering amplitude are examined at small momentum transfers with taking account of the Coulomb-hadron interference effects. An actual problem of the modern elementary particles physics, the research of strong interaction processes at large distances and high energies, is considered in the framework of different app...

Since a number of years the QGSJET model has been successfully used by different groups in the field of high energy cosmic rays. Current work is devoted to the first general update of the model. The key improvement is connected to an account for non-linear interaction effects which are of crucial importance for reliable model extrapolation into ultra-high energy domain. The proposed formalism a...

This talk summarizes recent QCD results from HERA, the Tevatron Collider and Tevatron xed target experiments.

We study symmetry breaking in a left-right symmetric extension of the Standard Model with mirror fermions, one for each Standard-Model fermion. The new particles assist a top-quark condensate in breaking electro-weak symmetry. Half of the fermions acquire electro-weak-invariant masses at around 500 GeV and would be probably accessible at future high-energy experiments like LHC or NLC. The contr...

The main results of the quality assurance tests performed on the Resistive Plate Chamber used by the ATLAS experiment at LHC as muon trigger chambers are reported and discussed. These are dark current, gas volume tomography, gas tightness, efficiency, and noise rate.

The understanding of diffractive lepton-hadron or hadron-hadron interactions at high energies, where at least one of the beam hadrons stays intact and loses only a small fraction of its incident momentum, still represents one of the main challenges in Quantum Chromodynamics. Diffraction is being extensively studied both at HERA and the TEVATRON, and there is a growing community planning to cont...

For the LHC magnet test benches 13 pairs of conventional helium vapour-cooled 13 kA current leads are required. The current leads have been designed and built by industry. Attention was given to economical and reliable design and to a design of the warm terminal in order to avoid any condensation. Three pairs of them were tested at CERN. The dry warm terminal enables voltage test at 4.1 kV at c...