High Energy Experimental Physics

High Energy Physics is the area of ​​physics that studies the fundamental interactions of nature in all its experimental and theoretical aspects, seeking to identify the elementary particles whose interactions occur through other particles called intermediate bosons. There are four fundamental interactions: the gravitational interactions whose mediator is graviton; the electromagnetic interactions, whose mediator is the photon; the weak interactions, whose mediators are the W +, W- and Zo; and strong interactions, whose mediators are the gluons. The elementary bricks would be 6 leptons (electron and electron neutrino, muon and muon neutrino, and tau and tau neutrino) and 6 quarks (up, down, strange, charm, bottom and top). From the discovery of this last quark, the top, the heaviest of all, were members of the DFNAE during the Dzero experiment at FERMILAB.

Millennial experiments at the Large Hadron Collider at CERN involve the greatest energies ever produced on accelerators and with them we hope to come up with new discoveries. Particularly noteworthy are the collaborations: CMS, which includes a large number of physicists from DFNAE / IF-UERJ, and the collaborations ATLAS, ALICE and LHCb.

With these experiments are appearing a series of new technologies in several areas, including computing, such as GRID. One of the largest clusters in Latin America, T2-HEPGRID-Brasil, is located in DFNAE / IF-UERJ, and connected to T1-FNAL (Fermilab) that goes directly to CMS-CERN at 1.2 Gbps.