LHC experiments see first evidence of a rare Higgs boson decay
Recently, the European Organization for Nuclear Research (CERN) is operating the LHC.
The first evidence of a rare process has been found during an experiment being carried out at the LHC. In this process the Higgs boson decays into Z boson and photon.
This decay may provide indirect evidence of the existence of particles that were not even predicted by the “Standard Model of Particle Physics (SMPP)”.
The Standard Model is a theory of particles, fields, and the fundamental forces that govern them. Currently, this model is the most accurate theory explaining the fundamental concepts of particle physics.
It consists of 12 fundamental matter particles, classified as quarks (which make up protons and neutrons) and leptons (which make up electrons).
This theory explains how ‘force-bearing’ particles, belonging to a broad group of bosons, affect quarks and leptons.
This model includes three forces that govern the behavior of matter. These forces are: Electromagnetism, Strong force and Weak force. Currently, the force of gravity is not included under the Standard Model.
Limitations of the SMPP model
- This model fails to explain the fact that how the force of gravity operates;
- It does not explain the asymmetry between matter and anti-matter;
- It cannot explain the composition of dark matter and;
- It is also unable to explain the fact that, why the mass of subatomic particles is greater than the sum of their constituents?
The European Organization for Nuclear Research (CERN)
The CERN laboratory was established in 1954. It is located on the France-Switzerland border near Geneva. It consists of 23 member countries. India is involved in this experiment as an associate member country.
Large Hadron Collider (LHC)
- It is the most powerful particle accelerator ever built. It is capable of moving protons or ions at nearly the speed of light.
- In the year 2012, the LHC discovered the Higgs boson particle. The Higgs boson particle will help us understand why fundamental particles have mass.
Source – Indian Express
