They have found no signs of the event yet.
Deep in Italy’s Gran Sasso mountains, in the National Institute for Nuclear Physics’ underground laboratories, researchers have been searching for proof of a very small violation of a fundamental quantum tenet called the Pauli exclusion principle,The principle, that is applied to everything, dictates that electrons can only arrange themselves in certain specific ways in atoms. These arrangements make it so we are made of solid matter.
But some speculative models of physics, beyond the standard model, suggest that the principle may be violated. "Many of these violations are naturally occurring in so-called 'noncommutative' quantum-gravity theories and models, such as the ones we explored in our papers," said Curceanu.Curceanu and her colleagues discovered that signs that the exclusion principle had been violated could be picked up in lab experiments on Earth.
"Our laboratory ensures what is called 'cosmic silence,' in the sense that the Gran Sasso mountain reduces the flux of cosmic rays by a million times," said Curceanu.In addition to working deep underground the scientists need to make sure materials used in the experiment do not emit any radiation themselves and the apparatus used are shielded from radiation from the mountain rocks.
"What is extremely exciting is that we can probe some quantum-gravity models with such a high precision, which is impossible to do at present-day accelerators," said Curceanu. As of yet, the team has found no evidence for the violation of the Pauli principle but that hasn’t stopped them from setting ambitious plans to extend their research to other"On the experimental side, we will use new target materials and new analysis methods, to search for faint signals to unveil the fabric of spacetime," said Curceanu.with such a high precision, which is impossible to do at present-day accelerators," Curceanu added.
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