ATLAS

ATLAS is one of the largest, and probably most famous of all the detectors in CERN along the LHC chain. It is very similiar to the CMS; it is set up almost identically to it, and are basically trying to accomplish similiar goals. Chances are one of the detectors will find something 'interesting' before the other does, and then the other detector could look for it, this would make their arguments and evidence stronger. CMS and ATLAS are set up in almost identical ways. In both, the center is made of silicon to get x and y coordinates and measure the momentum of particles, then followed by a layer of electromagnetic calorimeter (to measure energry of electrons, positrons, and photons), hadronic calorimeter (measure energry of protons, neutrons), and then the outer layer is a system of muon detectors. The main difference in the two is the muon detectors. ATLAS has superconducting magnets within the muon detectors, while CMS does not. These magnets will curve the path of the muons within ATLAS. Also, ATLAS has lighter magnets that, they believe, will allow particles to travel easier. Whereas, CMS is heavier, and may restrict some movement of particles. Both are aiming towards the same goal, and in a way are competitors. In the end; however, they are working together towards the same goals.