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London: The particle discovered last year by the European Organisation for Nuclear Research (CERN) may not be the famous Higgs particle as has been claimed, says a study.
While the researchers agree that the CERN experiments did find a new particle that had never been seen before, they noted that there is no conclusive evidence that the particle was indeed the Higgs particle.
The Higgs particle is the missing piece in the theory called the Standard Model. This theory describes three of the four forces of nature. But it does not explain what dark matter is - the substance that makes up most of the universe.
'The CERN data is generally taken as evidence that the particle is the Higgs particle. It is true that the Higgs particle can explain the data but there can be other explanations, we would also get this data from other particles,' said Mads Toudal Frandsen, associate professor at the University of Southern Denmark.
The researchers' analysis does not debunk the possibility that CERN has discovered the Higgs particle. That is still possible - but it is equally possible that it is a different kind of particle.
'The current data is not precise enough to determine exactly what the particle is. It could be a number of other known particles,' Frandsen added.
For the study, the research team scrutinised the existing scientific data from CERN about the new-found particle.
But if it was not the Higgs particle, that was found in CERN's particle accelerator, then what was it?
'We believe that it may be a so-called techni-higgs particle. This particle is in some ways similar to the Higgs particle - hence half of the name,' Frandsen concluded.
Although the techni-higgs particle and Higgs particle can easily be confused in experiments, they are two very different particles belonging to two very different theories of how the universe was created.
The study appeared in the journal Physical Review D.
IANS
While the researchers agree that the CERN experiments did find a new particle that had never been seen before, they noted that there is no conclusive evidence that the particle was indeed the Higgs particle.
The Higgs particle is the missing piece in the theory called the Standard Model. This theory describes three of the four forces of nature. But it does not explain what dark matter is - the substance that makes up most of the universe.
'The CERN data is generally taken as evidence that the particle is the Higgs particle. It is true that the Higgs particle can explain the data but there can be other explanations, we would also get this data from other particles,' said Mads Toudal Frandsen, associate professor at the University of Southern Denmark.
The researchers' analysis does not debunk the possibility that CERN has discovered the Higgs particle. That is still possible - but it is equally possible that it is a different kind of particle.
'The current data is not precise enough to determine exactly what the particle is. It could be a number of other known particles,' Frandsen added.
For the study, the research team scrutinised the existing scientific data from CERN about the new-found particle.
But if it was not the Higgs particle, that was found in CERN's particle accelerator, then what was it?
'We believe that it may be a so-called techni-higgs particle. This particle is in some ways similar to the Higgs particle - hence half of the name,' Frandsen concluded.
Although the techni-higgs particle and Higgs particle can easily be confused in experiments, they are two very different particles belonging to two very different theories of how the universe was created.
The study appeared in the journal Physical Review D.
IANS
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