Abstract

Higgs boson is the last missing piece of the modern theory of elementary particles, the so-called Standard Model of physics. The theory predicts that there should be a new neutral elementary particle with a mass of more than a hundred proton masses, but much smaller ones. It is this hypothetical particle that is responsible for the mass of all other elementary particles. Search for «Higgs boson» were busy competing and complementing each other, groups of detectors CMS and ATLAS at the Large Hadron Collider. On July 4, 2012 in Geneva at the European Organization for Nuclear Research the seminar, which was presented the last data of the Large Hadron Collider, in particular, the results of efforts to search for the Higgs boson ended. The leaders of the experiments, – CMS and ATLAS – announced the opening of a new elementary particle, but stressed that its accurate identification would take time. The question of whether the long-awaited Higgs boson particle of the Standard Model, the last missing its «ingredient», or is it something completely different, completely new specific «bridge» to «new physics» was left open. This is due to a number of difficulties in observation of elementary particles in modern experimental physics. If it is the latter, a new elementary particle can become a bridge to understanding the nature of the mysterious dark matter and dark energy, which own 96% of the mass of the universe and that we still do not know. This is a milestone in our understanding of nature, a great day. Opening particles, similar to the Higgs boson, which opens the way to a more detailed study, that needs more statistics. However, it will describe in detail the properties of new particles and probably will shed light on the mysteries of our universe.