Scientists Close In on Mysterious Zeptoverse After 40

Key Points:

• Physicists at the University of Cambridge have found evidence of an extremely rare particle decay event occurring once in every 10 billion beauty quark particles, marking a significant step toward exploring the zeptoverse, a realm billions of times smaller than an atom.
• The discovery was made using upgraded detectors at CERN’s Large Hadron Collider and involved detecting beauty particles decaying into two muons, a process sought since 1984 but only now observed with 3.2 sigma confidence.
• This rare decay event could provide new ways to search for unknown particles or forces that may explain fundamental mysteries such as the nature of dark matter and the imbalance between matter and antimatter in the universe.
• While the findings do not yet confirm new physics, they open the door to deeper exploration of extremely small scales measured in zeptometres, with further collider upgrades planned for the 2030s to enhance investigation capabilities.
• The results, led by UK physicists and presented at CERN, highlight the advanced capabilities of the LHCb experiment and represent a major milestone in fundamental particle physics research.