Evidence for CP violation in Λb0→ΛK+K– decays
This week, at a CERN seminar, the LHCb collaboration presented new results that provide evidence for CP violation in Λb0→ΛK+K– decays. LHCb is an experiment designed to study physics phenomena…
Observation of the rare Σ+→pμ+μ– decay
The LHCb collaboration reported the observation of the Σ+→pμ+μ– rare decay at the XV International Conference on Beauty, Charm, Hyperons in Hadronic Interactions (BEACH 2024) in Charleston, South Carolina, USA.…
Observation of new Ξc0 baryons
Today, the LHCb collaboration submitted a paper reporting a system of three particles interpreted as three narrow excited Ξc0 – states. The Ξc0 baryon is composed of a charm-, a…
Observation of a new beauty baryon particle
Today at the Winter Meeting on Nuclear Physics, Bormio, Italy, the LHCb collaboration announced the discovery of a new beauty baryon particle. The new particle is observed in the Λb0π+π–…
Beautiful charming and magic Ω baryons
First observation of excited Ωb– states. Today, the LHCb collaboration submitted a paper reporting a new system of four particles interpreted as four narrow excited Ωb– states. As in many…
Test of lepton universality with beauty baryons, RpK
Today the LHCb Collaboration submitted for publication a measurement of the ratio RpK. This tests a principle of the Standard Model of particle physics known as “lepton universality“, which states…
Observation of two new beauty baryon particles
Today at the EPS-HEP conference, the LHCb collaboration announced the discovery of two new beauty baryon particles. These particles are interpreted as excited states of the Λb0 baryon. The new…
The magic of the Ωc baryon
Observation of five new narrow Ωc0 excited states. As NASA announced a few days ago the discovery of the first system of seven Earth-size planets orbiting around a single star,…
Measurement of matter-antimatter differences in beauty baryon decays
Towards an important milestone in particle physics. The LHCb collaboration has published today in Nature Physics the first evidence for the violation of the CP symmetry in baryon decays with…
A mystery of the beauty baryon lifetime resolved
The LHCb Collaboration has just published an important precise measurement of the Λb beauty baryon lifetime. The Λb is a particle composed of the up (u), down (d) and beauty…