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Discovery of the odderon particle

Pubblicato il 19 March 2021

Discovery of the subatomic odderon particle by the international scientific collaborations Totem, at the LHC of CERN, and DØ, at the Tevatron of Fermilab.

On March 16, CERN and Fermilab announced the discovery of the subatomic odderon particle, an elusive state consisting of three (or an odd number of) gluons, which was predicted almost 50 years ago but never definitively revealed before. Once again this important discovery took place at the Large Hadron Collider, the circular tunnel of 27 km, located at a depth of 100 meters between France and Switzerland, where beams of protons are accelerated and collided. Already three years ago the experimental physicists of the Totem Collaboration found evidence of the existence of this subatomic particle called odderon. The results were sufficient to claim evidence for the odderon, although not yet its definitive observation, as it happened with this new work carried out by the collaboration of Totem at the CERN LHC together with the collaboration DØ at the Fermilab Tevatron.

Angelo Scribano (INFN) chairman of the Collaboration Board which includes all the institutes of the Totem Collaboration and president of the Technical Scientific Committee GARR, comments "the existence of the odderon plays an important role in describing the strong interaction, the force that in the atomic nuclei holds together protons and neutrons and their fundamental constituents (quarks) in them by exchanging gluons. The odderon had been predicted since the 1970s in the QCD (Chromium Dynamics Quantum) theory, which describes the strong interaction. Only today, however, it has been possible to confirm its existence experimentally. This is the result of an increasingly global team work, to which the Italians of the INFN have made a substantial contribution. These are very vast international scientific collaborations, sometimes even of thousands of scientists scattered all over the world, which are held together by research networks”.

“The whole Universe and our very existence” continues Scribano “are entrusted to a complex and continuous interplay of forces. Their understanding and description are the foundation of scientific and technological progress. There are four fundamental interactions (or simply forces) of nature: electromagnetic interaction, strong nuclear interaction, weak nuclear interaction and gravitational interaction. The discovery of the odderon allows us to explore the deeper characteristics of the strong nuclear interaction by adding that missing experimental piece to the Quantum Dynamic Chromium”.

GARR has always been involved in the creation and management of private networks LHCONE and LHCOPN supporting the LHC particle accelerator experiments at CERN. Given the very high data production of LHC, their analysis is conducted in a distributed way in the data centers of level 1 and 2 (Tier1 and Tier2), as well as at CERN (Tier0). For this reason it is important to have a robust and capable multiservice network to support data transfer.

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