` Introduction

1. INTRODUCTION

We propose to participate in the design, building and research program of the Compact Muon Solenoid (CMS) detector at the Large Hadron Collider (LHC) at CERN. LHC program will address the fundamental questions in high energy particle physics, namely that of origin of the spontaneous symmetry breaking mechanism, testing grand unification models, search for supersymmetry (SUSY), new gauge bosons, etc.

The CMS project is one of the greatest international project which was ever been proposed by international scientific community to study fundamental properties of matter. The using of the CMS detector for the experiments at colliding beams of very high energy protons and nuclei at LHC will allow to accomplish a breakthrough in the investigation of fundamental laws of nature applicable for extremely small distances those in turn will allow to open a new skyline in the matter structure.

Realization of the CMS project will allow to utilize the world experience of building and operation of large frontier scientific apparatus accumulated over the last decades. Similar to the discoveries of atomic structure, wave properties of matter and quantum mechanics in the beginning of XX century provides the fast development of science and technology, the results of LHC experiments will not only provide the development of fundamental laws of particle physics but also could lead to discoveries which will defined the general development of science and technology of XXI century.

Many international conferences and workshops have reviewed in detail the signature of various new phenomena expected. The detection of such fundamental particles as photons, leptons, quarks and gluons will be required. Photons, electrons and muons could be detected directly. Quarks and gluons will be detected as hadron jets. High energy neutrinos will be detected as observation of large missing transverse energy in the particular event.

The CMS detector is being designed to enable discovery and investigation of all predicted now physical scenarios but also for new unexpected physics. An excellent photon, electron and muon resolution enables to discover the Standard Model Higgs boson or Higgs family of extended models and search for new unexpected narrow resonance. An adequate hermeticy and jets energy resolution provides the possibility to hunt for SUSY particles in most obvious and model independent way.

The copious production of b and tquarks at LHC opens the unequal heavy flavor physical program, in particular, the precise study of CP violation effects in the B system will be possible during the initial LHC run at low luminosity.

In addition to running as a proton proton collider, LHC will be used to collide heavy ions. Here the CMS research program concentrates on the search for quark gluon plasma predicted by QCD.