How many GeV is the Higgs?
125.35 GeV
Now, the CMS collaboration has announced the most precise measurement so far of this property: 125.35 GeV with a precision of 0.15 GeV, or 0.12%. Like most members of the zoo of known particles, the Higgs boson is unstable and transforms – or “decays” – nearly instantaneously into lighter particles.
Has the LHC discovered supersymmetry?
It appears increasingly unlikely that supersymmetry could include all three features—an explanation for the Higgs mass, a dark matter particle and force unification—found in the pre-LHC models. The lack of evidence for supersymmetry at the LHC does not signify a death knell for the idea.
Is there only one Higgs boson?
Some researchers have suggested that particles have different masses because there is more than one type of Higgs boson, with each type of Higgs coupled to a different mass range of other particles.
What is the LHC at CERN?
The Large Hadron Collider (LHC) is the world’s largest and most powerful particle accelerator. It first started up on 10 September 2008, and remains the latest addition to CERN’s accelerator complex. They are guided around the accelerator ring by a strong magnetic field maintained by superconducting electromagnets.
What is supersymmetry theory?
Supersymmetry is an extension of the Standard Model that aims to fill some of the gaps. It predicts a partner particle for each particle in the Standard Model. Theorists have come up with a mechanism to give particles masses that requires the existence of a new particle, the Higgs boson.
Is there evidence for supersymmetry?
To date, no evidence for supersymmetry has been found, and experiments at the Large Hadron Collider have ruled out the simplest supersymmetric models.
What is supersymmetry used for?
Supersymmetry is an extension of the Standard Model that aims to fill some of the gaps. It predicts a partner particle for each particle in the Standard Model. These new particles would solve a major problem with the Standard Model – fixing the mass of the Higgs boson.
What does the LHC do?
The LHC is a particle accelerator that pushes protons or ions to near the speed of light. It consists of a 27-kilometre ring of superconducting magnets with a number of accelerating structures that boost the energy of the particles along the way.
How big is the LHC at CERN?
17 miles
The Large Hadron Collider (LHC) is the world’s biggest and most powerful particle accelerator. It was built by the European Organization for Nuclear Research (CERN). It is a giant circular tunnel built underground. The tunnel is 17 miles (27 kilometers) long, and between 50 and 175 meters below the ground.
How fast do particles in the LHC move?
11,000 circuits per seconds
Particles are propelled in two beams going around the LHC to speeds of 11,000 circuits per seconds, guided by massive superconducting magnets!
