LHCb collaboration observes first ultra-rare beauty-particle decay at CERN

LHCb collaboration observes first ultra-rare beauty-particle decay at CERN

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The LHCb collaboration at CERN announced that it has observed evidence of an ultra-rare beauty-particle decay that occurs in roughly one out of ten billion decays, providing a novel test of the Standard Model and a view into the so-called Zeptoverse. Earlier, Sci. News reported that the measured decay rate of B0 mesons into muon pairs aligns with Standard Model predictions.

Mirage News added that the observation was made possible by an upgraded detector built by University of Liverpool researchers. BBC had previously highlighted that CERN physicists are probing interactions at scales a hundred billion times smaller than an atom, showing the experiment’s capability to explore fundamental forces.

Actors

University of Manchester CERN LHCb collaboration Professor Chris Parkes Professor Conor Fitzpatrick Professor Brian Cox UK Science and Technology Facilities Council UK Research and Innovation STFC Rutherford Appleton Laboratory

Locations

CERN, Geneva, Switzerland University of Manchester, Manchester, United Kingdom Rutherford Appleton Laboratory, Didcot, United Kingdom

Articles

November 04, 2026
1 total
CERN's LHCb experiment reports first evidence of ultra-rare beauty-particle decay
CERN's LHCb experiment reports first evidence of ultra-rare beauty-particle decay

Moneycontrol.com • 04 Nov 05:26

Physicists at CERN have observed evidence of a decay that occurs once in about 10 billion beauty particles, offering a new test of the Standard Model and a window onto the so-called Zeptoverse.

Credibility 85% Manip. 8% Center
November 03, 2026
8 total
LHCb Collaboration Reports Evidence of Rare B0 Meson Decay Consistent with Standard Model
LHCb Collaboration Reports Evidence of Rare B0 Meson Decay Consistent with Standard Model

Sci.News • 03 Nov 20:37

Researchers at CERN's LHCb experiment have observed a rare decay of B0 mesons into muon pairs, with a measured rate that aligns with Standard Model predictions.

Credibility 92% Manip. 8% Center
LHCb Collaboration Reports First Evidence of Rare Beauty-Particle Decay
LHCb Collaboration Reports First Evidence of Rare Beauty-Particle Decay

Mirage News • 03 Nov 16:36

Scientists at CERN's LHCb experiment have observed the first evidence of the ultra-rare decay of a beauty particle into two muons, using an upgraded detector built by University of Liverpool researchers.

Credibility 85% Manip. 8% Center
LHCb experiment reports first evidence of ultra-rare beauty-quark decay
LHCb experiment reports first evidence of ultra-rare beauty-quark decay

Phys.org • 03 Nov 15:40

Scientists at CERN's LHCb collaboration have observed evidence for the decay of a beauty meson into two muons, a process predicted to occur once in about 10 billion cases, marking a step toward more precise tests of the Standard Model.

Credibility 88% Manip. 8% Center
UK physicists report first evidence of ultra-rare beauty particle decay at CERN
UK physicists report first evidence of ultra-rare beauty particle decay at CERN

Mirage News • 03 Nov 14:44

Researchers from the University of Warwick and a UK-led team have observed the rare decay of a beauty particle into two muons at the LHCb experiment, achieving a 3.2-sigma statistical significance.

Credibility 88% Manip. 7% Center
LHCb Collaboration reports evidence of ultra-rare Bd to muon pair decay
LHCb Collaboration reports evidence of ultra-rare Bd to muon pair decay

Mirage News • 03 Nov 10:50

The LHCb experiment at CERN has observed evidence for the Bd → μ⁺μ⁻ decay with a significance of 3.2 sigma, marking the first single-experiment indication of this one-in-ten-billion process.

Credibility 88% Manip. 5% Center
Cambridge team detects ultra-rare particle decay at CERN, advancing zeptoverse research
Cambridge team detects ultra-rare particle decay at CERN, advancing zeptoverse research

The European Magazine • 03 Nov 09:50

Physicists from the University of Cambridge reported evidence of a decay occurring in one out of every ten billion beauty quarks, a result that could aid future investigations of the sub-zeptometre scale and dark matter.

Credibility 78% Manip. 8% Center
Manchester physicists help confirm ultra-rare particle decay at CERN
Manchester physicists help confirm ultra-rare particle decay at CERN

Mirage News • 03 Nov 06:08

Researchers from the University of Manchester contributed to the LHCb experiment's first evidence of the extremely rare B⁰_d → μ⁺μ⁻ decay, a result that tests the Standard Model and opens new avenues for probing physics at zeptometre scales.

Credibility 88% Manip. 8% Center
Physicists Probe Unprecedented Small Scale Using LHC Data
Physicists Probe Unprecedented Small Scale Using LHC Data

BBC • 03 Nov 06:01

Researchers at CERN have observed particle interactions at a scale a hundred billion times smaller than an atom, opening new avenues for studying fundamental forces and dark matter.

Credibility 88% Manip. 12% Center

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