Inverted, but not perfectly: First trace of differences between matter and 'ordinary' antimatter

The world around us is mainly constructed of baryons, particles composed of three quarks. Why are there no antibaryons, since just after the Big Bang, matter and antimatter came into being in exactly the same amounts? A lot points to the fact that after many decades of research, physicists are closer to the answer to this question. In the Large Hadron Collider beauty (LHCb) experiment the first trace of the differences between baryons and antibaryons has just been encountered.


The first trace of differences between matter and "common", baryonic antimatter has just been encountered in decays of the beauty baryon Lambda b. Pictured above: LHCb Collaboration in front of LHCb detector.
(Source: CERN, The LHCb Collaboration)


"Measurement of matter–antimatter differences in beauty baryon decays",
The LHCb collaboration
Nature Physics (2017);
DOI: 10.1038/nphys4021

Press releases of the Institute of Nuclear Physics, Polish Academy of Sciences:
IFJ PAN Press Office - https://press.ifj.edu.pl/en/news/2017/02/22/
EurekAlert! Site - https://www.eurekalert.org/pub_releases/2017-02/thni-fto022217.php

Other press releases - http://press.ifj.edu.pl/en