US EditionPublished • loading... • Updated
CERN Discovers New Proton-Like Particle with Two Charm Quarks
The discovery of the Xi-cc-plus baryon with two charm quarks advances tests of quantum chromodynamics and raises the known hadrons count to 80, LHCb scientists said.
- CERN's LHCb experiment at CERN's Large Hadron Collider announced the discovery of a new baryon made of two charm quarks and one down quark, based on Run 3 data, with a significance above 7 sigma.
- After upgrades completed in 2023, LHCb detector enhancements enabled sensitive searches, following the 2017 Xicc++ discovery and resolving a 4.7 sigma 2002 SELEX discrepancy.
- Analysis of Run 3 proton–proton collisions shows the particle decays quickly, identified by decay-product reconstruction, with predicted lifetime up to six times shorter and total hadrons discovered by LHC experiments at 80.
- The result gives theorists new experimental data to test quantum chromodynamics and helps researchers study how the strong nuclear force binds heavier quarks inside baryons.
- The discovery provides data that positions the LHC for further studies, offering constraints for models of conventional baryons and exotic hadrons and emphasizing the need for detector sensitivity ahead of the High-Luminosity LHC.
Insights by Ground AI
48 Articles
48 Articles
Researchers have discovered a new particle, a type of 'heavy proton', using CERN's LHC particle accelerator. And so the list of discoveries keeps growing. "We are exploring territory we haven't been in yet," says physicist Jorgen D'Hondt.
·Antwerp, Belgium
Read Full Article
der Standard ATReposted by 
der Standard DE
der Standard DEThe Baryon with two heavy charm quarks is only the second of its kind. It is intended to help to better understand the force that holds matter together in the innermost part
·Vienna, Austria
Read Full ArticleCoverage Details
Total News Sources48
Leaning Left7Leaning Right3Center8Last UpdatedBias Distribution44% Center
Bias Distribution
- 44% of the sources are Center
44% Center
L 39%
C 44%
R 17%
Factuality
To view factuality data please Upgrade to Premium
