Showing 2106 results

OPAL was one of the 4 experiments at CERN's Large Electron Positron collider (LEP) which ran from 1989 - 2000. This array of 96 lead glass bricks formed part of the OPAL electromagnetic calorimeter. In total, there were 9440 lead glass counters in the OPAL electromagnetic calorimeter, made of Schott type SF57 glass and each block weighs about 25 kg and consists of 76% PbO by weight. Each block has a Hamamatsu R2238 photomultiplier glued on to it. The complete detector was in the form of a cylinder 7m long and 6m in diameter. It was used to measure the energy of electrons and photons produced in LEP electron positron collisions.

Calculations on argument substitution.Calculations

Records documenting the planning, construction, maintenance, and management of CERN’s site infrastructure and civil engineering works. Includes administrative records, technical documentation, contracts, reports, correspondence, and drawings related to accelerator projects and site facilities.

This manuscript deals with some ambiguities in the formalism of the field theory.Manuscript

This manuscipt deals with some ambiguities in the formalism of the field theory.Manuscript

Hamiltonian function, entropy.Manuscript

On some concepts of Goethe about science.Manuscript

Diploma [?] of H. H. Euler, directed by W. Heisenberg. Light in Dirac's theory.Manuscript

Paper related to the celebration of the 50th anniversary of the theory of the relativity.Article