Physicists have learned at the collider what is inside neutrons and antineutrons


12/29/2023 19:47

In the past year, Siberian physicists managed to double the accuracy of measurements of the state of elementary particles, the press service of the Institute of Nuclear Physics SB RAS reported.

As is known, almost all elementary particles consist of quarks and gluons: baryons – from three quarks, and mesons – from a quark and an antiquark. Scientists all over the world collide particles with each other at accelerators in order to understand from the effects of their interaction with each other what is going on inside them.

Physicists from Novosibirsk did not invent anything fundamentally new, but simply worked hard and painstakingly, thanks to which they turned quantity into quality. At the VEPP-2000 collider, they observed the annihilation of electrons and positrons into a neutron-antineutron pair.

“In the last measurement, we approximately quadrupled the statistics – about 6 thousand pairs of neutrons-antineutrons were registered. This, in turn, doubled the accuracy of measurements of the structure of these particles and antiparticles,” explained the chief researcher of the BINP Sergey Serednyakov.

The data obtained were compared with the results of similar experiments at the Chinese BESIII accelerator. It practically agreed, which indicates a high degree of their reliability.

Author Sergey Kobin

Sergey Kobin – journalist, correspondent for the Pravda.Ru news service

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