What is Large Hadron Collider experiment?

Answer 1

This project was conceived in 1984 by scientists at the European Organization for Nuclear Research, or CERN. The organization's 20 member nations along with observer countries such as the United States and Japan have contributed $10 billion. The Collider fires protons around the tunnel at near the speed of light - more than 186,000 miles per second. Supercooled magnets guide the protons in opposite directions around a near-vacuum until they collide at four points inside the tunnel. As protons collide, the detectors will search for evidence of extra dimensions - apart from the three dimensions of space and one dimension of time. They will also look for the "dark matter" believed to make up most of the universe, antimatter that mirrors all known matter, and the elusive Higgs-boson particle - sometimes called the "God particle," because it is believed to give mass to all other particles. All of these have previously only been theorized, but not confirmed. One of the detectors will smash together lead ions to simulate conditions shortly after the "big bang"_ the event believed to have created the universe 13.7 billion years ago. Scientists hope to learn from this how matter was formed. If the collider proves the existence of new particles, it could test the dominant physics hypothesis of "string theory," which seeks to reconcile quantum mechanics and gravity in an all-encompassing formula that has eluded all scientists since Albert Einstein.