S. Shevchenko

Studies of Lead Tungstate Crystal Matrices in High-Energy Beams for the CMS Electromagnetic Calorimeter at the LHC

Using matrices of lead tungstate crystals, energy resolutions better than 0.6% at 100 GeV have been achieved in the test beam in 1995. It has been demonstrated that a lead tungstate electromagnetic calorimeter read out by avalanche photodiodes can consistently achieve the excellent energy resolutions necessary to justify its construction in the CMS detector. The performance achieved has been understood in terms of the properties of the crystals and photodetectors.

The L3 Silicon Microvertex Detector: installation and results on 1993 performance

Abstract The status of the Silicon Microvertex Detector (SMD) and its installation into the LEP-L3 experiment are presented, highlighting novel features and sophisticated techniques. Preliminary results based on 1993 data are given and compared with Monte Carlo predictions, to understand the detector performances and its tracking capabilities.

Prototype of GRID infrastructure for H → γγ study with full QCD background simulation and reconstruction for CMS at LHC

Abstract CMS experiment at CERN Large Hadron Collider (LHC) will begin taking data in 2007. Along with the Petabytes of data expected to be collected, CMS will also generate an enormous amount of Monte Carlo simulation data. This paper describes solutions developed at Caltech to address the issue of controlled generation of large amounts of Monte Carlo simulation data using distributed Alliance resources. We will report on the results of production using Grid tools (Globus, Condor-G) to knit together resources from various institutions within Alliance in NPACI framework. The results of this effort have been used for the study of the H →γγ decay channel with full background simulation.