Data from a major US atom smasher lab may have revealed a new elementary particle, or potentially a new force of nature that could expand our knowledge of the properties of matter, physicists say.
The science world was abuzz with excitement Wednesday over the findings, which could offer clues to the persistent riddle of mass and how objects obtain it -- one of the most sought-after answers in all of physics.
But experts cautioned that more analysis was needed over the next several months to uncover the true nature of the observation, which comes as part of an ongoing experiment with proton and antiproton collisions to understand the workings of the universe.
"There could be some new force beyond the force that we know," said Giovanni Punzi, a physicist with the international research team that is analyzing the data from the US Department of Energy's Fermi National Accelerator Laboratory.
"If it is confirmed, it could point to a whole new world of interactions," he told AFP.
While much remains a mystery, researchers agree that this is not the "God Particle," or the Higgs-boson, a hypothetical elementary particle that has long eluded physicists who believe it could explain why objects have mass.
"The Higgs-boson is a piece that goes into the puzzle that we already have," said Punzi. "Whereas this is something that goes a little bit beyond that -- a new interaction, a new force."
Punzi said the new observation behaves differently than the Higgs-boson, which would be decaying into heavy quarks, or particles.
The new discovery "is decaying in normal quarks," Punzi said. "It has different features," he added.
"One thing we know for sure -- it is not the Higgs-boson. That is the only thing we know for sure."
For more than a year physicists have been studying what appears to be a "bump" in the data from the Illinois-based Fermi lab, which operates the powerful particle accelerator, or atom-smasher, Tevatron.
The Tevatron was once the most powerful machine in the world for such purposes until 2008 when the Large Hadron Collider (LHC) became operational at the European Organization for Nuclear Research, which goes by the acronym CERN.
The US machine began its work in the mid 1980s, and is scheduled for shutdown later this year when its funding runs dry.
) according to the Fermilab website so that should give us a load more info, hopefully.
