A huge solenoid, which will hold the world record of stored energy
The first module of the five constituting the CMS superconducting magnet is sailing on January 21st of from Genova port to Cern. CMS (Compact Muon Solenoid) is one of the experiments that will take place at the accelerator Lhc (Large Hadron Collider), under construction at Cern in Geneva. The device will arrive after a 10-days travel. One of the most ambitious goals of CMS is to provide information about the elusive Higgs boson: the elementary particle which is associated with the mechanism giving rise to the masses of all particles. The theoretical models predicted its existence, but it has not been directly observed yet.
Cms will analyse the products of the collisions of the proton beams steered in Lhc. It will reconstruct their tracks and measure their energy. The superconducting magnet, containing the heart of Cms experiment generates a very high magnetic field, necessary to recognize the particles produced by the collisions. Indeed the tracks of the charged particles crossing a magnetic field are deflected in different ways according to their mass and charge. Therefore, observing particles tracks we can trace back to their identity. To obtain observable deflections we need a magnetic field as high as the energy of the outgoing particles. Since in Lhc particles beams with a very high energy are produced and made to collide (these particles in a very small scale reproduce the conditions of our universe in the very first instants of its birth) it is necessary to have a very high magnetic field.
Pasquale Fabbricatore | alfa
Writing and deleting magnets with lasers
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