After 50-Year International Hunt, Physicists Discover Mythical Odderon Particle

Particle Physics Artist Concept

For 50 years, the research community has been hunting unsuccessfully for the so-called Odderon particle. Now, a Swedish-Hungarian research group has discovered the mythical particle with the help of extensive analysis of experimental data from the Large Hadron Collider at CERN in Switzerland.

In 1973, two French particle physicists found that, according to their calculations, there was a previously unknown quasi-particle. The discovery sparked an international hunt.

The Odderon particle is what briefly forms when protons collide in high-energy collisions, and in some cases do not shatter, but bounce off one another and scatter. Protons are made up of quarks and gluons, that briefly form Odderon and Pomeron particles.

And now a research team, involving researchers from Lund University, has succeeded in identifying the Odderon in connection with an advanced data analysis study at the particle accelerator CERN.

Roman Pasechnik, particle physics researcher at Lund University. Credit: Gunnar Ingelman

”This is a particle physics milestone! It feels fantastic to contribute to an increased understanding of matter; the fundamental building blocks of our world,” says Roman Pasechnik, particle physics researcher at Lund University.

Through extensive data analyzes of elastic proton-proton and proton-antiproton collisions, the researchers were able to hone in on the new particle. The analysis took several months, but finally paid off.

”We worked with some of the world’s best particle physicists. They were astonished when we published our results,” concludes Roman Pasechnik.

Reference: “Evidence of Odderon-exchange from scaling properties of elastic scattering at TeV energies” by T. Csörgő, T. Novák, R. Pasechnik, A. Ster and I. Szanyi, 23 February 2021, The European Physical Journal C.
DOI: 10.1140/epjc/s10052-021-08867-6


View Comments

  • Odderon is the fundamental particle that does not splits by any hardest physical impact and lest ìnteraction with energy çonstituts pŕoton.

  • Odderon iss the fundamental particle uneffected by any physical force and lest interaction with energy constitutes protòn

  • Armchair physicist here; so, basically, they sifted thru a shitload of old data points and found a new particle?

  • If uneffected by any physical force maybe in the future we can create real force fields. Just a thought.

  • Mindchild: " this was not discovered at the beginning when use of tides were created to clash two atoms and to split them?

  • I've heard that when the particle accelerators smash particles together, the amount of data is far more (orders of magnitude) than we can process. The data exists and is recorded, but you really need to know what you're looking for because it's unfeasible to try to process it all at the time of the event.

Lund University

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