Scientists have discovered previously unknown particles thanks to the collider

A group of scientists, as part of the international collaboration LHCb, has discovered three new particles that have never been

have not been observed before.

We are talking about an exotic pentaquark and a pairinterconnected tetraquarks, which includes a new type of tetraquark. Thus, the list of hadrons found at the Large Hadron Collider has been replenished again.

A new pentaquark has been reported to have been discovered inanalysis of decay events of negatively charged B-mesons. It consists of a charmed quark and an antiquark, and with them an up, down, and strange quark. All this makes it the first pentaquark in history to contain a strange quark.

According to experts, the level of statistical significance of the discovery was 15 (sigma). For comparison, in general, in particle physics, the discovery of a particle is already talked about at a significance level above five sigma.

In turn, the new doubly charged tetraquark withopen charm was observed together with its neutral counterpart in the joint analysis of the decays of positively charged and neutral B-mesons. Their sigma score was 6.5 for the first and 8 sigma for the second.