 |
| The God Particle, which is believed to be responsible for all the mass in the universe, was discovered in 2012 using a Cern's supercollider. In this image two high-energy photons collide. The yellow lines are the measured tracks of other particles produced in the collision, which helped lead to the discovery of the God particle. |
Excerpt from dailymail.co.uk
- God Particle is believed to be responsible for all the mass in the universe
- Particle was discovered in 2012 using a Cern's supercollider in Geneva
- uperconductor experiment suggests the particle could be detected without the huge amounts of energy used at by the Large Hadron Collider
- LHC is due to come back online next month after an upgrade that has given it a big boost in energy
Scientists have discovered a simulated version of the elusive 'God particle' using superconductors.
The God Particle, which is believed to be responsible for all the mass in the universe, was discovered in 2012 using a Cern's supercollider.
The superconductor experiment suggests that the Higgs particle could be detected without the huge amounts of energy used at by the Large Hadron Collider.
The results could help scientists better understand how this mysterious particle – also known as the Higgs boson – behaves in different conditions.
'Just as the Cern experiments revealed the existence of the Higgs boson in a high-energy accelerator environment, we have now revealed a Higgs boson analogue in superconductors,' said researcher Aviad Frydman from Bar-Ilan University.
Superconductors are a type of metal that, when cooled to low temperatures, allow electrons to pass through freely.
'The Higgs mode was never actually observed in superconductors because of technical difficulties - difficulties that we've managed to overcome,' Professor Frydman said.
The superconductor experiment suggests that the Higgs particle could be detected without the huge amounts of energy used at by the Large Hadron Collider (pictured)
WHAT IS THE GOD PARTICLE?
The 'God Particle', also known as the Higgs boson, was a missing piece in the jigsaw for physicists in trying to understand how the universe works.
Scientists believe that a fraction of a second after the Big Bang that gave birth to the universe, an invisible energy field, called the Higgs field, formed.
This has been described as a kind of 'cosmic treacle' across the universe.
As particles passed through it, they picked up mass, giving them size and shape and allowing them to form the atoms that make up you, everything around you and everything in the universe.
This was the theory proposed in 1964 by former grammar school boy Professor Higgs that has now been confirmed.
Without the Higgs field particles would simply whizz around space in the same way as light does.
A boson is a type of sub-atomic particle. Every energy field has a specific particle that governs its interaction with what's around it.
To try to pin it down, scientists at the Large Hadron Collider near Geneva smashed together beams of protons – the 'hearts of atoms' – at close to the speed of light, recreating conditions that existed a fraction of a second after the Big Bang.
Although they would rapidly decay, they should have left a recognisable footprint. This footprint was found in 2012.
The main difficulty was that the superconducting material would decay into something known as particle-hole pairs.
Large amounts of energy – which are usually needed to excite the Higgs mode - tend to break apart the electron pairs that act as the material's charge.
Professor Frydman and his colleagues solved this problem by using ultra-thin superconducting films of Niobium Nitrite (NbN) and Indium Oxide (InO) as something known as the 'superconductor-insulator critical point.'
This is a state in which recent theory predicted the decay of the Higgs would no longer occur.
In this way, they could still excite a Higgs mode even at relatively low energies.
'The parallel phenomenon in superconductors occurs on a different energy scale entirely - just one-thousandth of a single electronvolt,' Professor Frydman added.
'What's exciting is to see how, even in these highly disparate systems, the same fundamental physics is at work.'
The different approach help solve one of the longstanding mysteries of fundamental physics.
The discovery of the Higgs boson verified the Standard Model, which predicted that particles gain mass by passing through a field that slows down their movement through the vacuum of space.
To try to pin it down, scientists at the Large Hadron Collider near Geneva smashed together beams of protons – the 'hearts of atoms' – at close to the speed of light, recreating conditions that existed a fraction of a second after the Big Bang.
Although they would rapidly decay, the also left a recognisable footprint.
Professor Higgs, 83, has been waiting since 1964 for science to catch up with his ideas about the Higgs boson
According to Professor Frydman, observation of the Higgs mechanism in superconductors is significant because it reveals how a single type of physical process behaves under different energy conditions.
'Exciting the Higgs mode in a particle accelerator requires enormous energy levels - measured in giga-electronvolts, or 109 eV,' Professor Frydman says.
'The parallel phenomenon in superconductors occurs on a different energy scale entirely - just one-thousandth of a single electronvolt.
'What's exciting is to see how, even in these highly disparate systems, the same fundamental physics is at work.'
The LHC is due to come back online in March after an upgrade that has given it a big boost in energy.
'With this new energy level, the (collider) will open new horizons for physics and for future discoveries,' CERN Director General Rolf Heuer said in a statement.
'I'm looking forward to seeing what nature has in store for us.'
Cern's collider is buried in a 27-km (17-mile) tunnel straddling the Franco-Swiss border at the foot of the Jura mountains.
The LHC in Geneva will come back online in March after an upgrade that has given it a big boost in energy
Comments