LHCb

A handful of physicists have prepared the detector for a more sophisticated dark matter search.

Building experimental evidence suggests that the electron, muon and tau may feel different forces.

From Fuentitech, October 19, 2021: Physicists have long wondered if muons, electrons, and other leptons make a difference other than mass. The latest LHCb results suggest that the answer may be “yes” by revealing two minor anomalies that continue the strange pattern of “lost” muons shown in recent data from the LHCb. In April, the Muon g-2 experiment at Fermilab also found a discrepancy from the Standard Model but future results may also shed light on these differences.

The newly discovered tetraquark provides a unique window into the interactions of the particles that make up atoms.

From Scientific American, March 25, 2021: Physicists have long wondered if muons, electrons and other leptons possess differences besides their mass; the latest LHCb result; Fermilab and the upcoming results of Muon g-2 test the standard model.

From Forbes, Jan. 11, 2021: Fermilab scientist Don Lincoln explains a result from the LHCb experiment that adds another data point on nature’s matter-antimatter imbalance.

Matter and antimatter particles can behave differently, but where these differences show up is still a puzzle. Scientists on the LHCb experiment at the Large Hadron Collider study much more subtle differences between matter particles and their antimatter equivalents. A recent analysis allowed them to revisit an old mystery — an asymmetry between asymmetries.

For the first time, the LHCb collaboration at CERN has observed an exotic particle made up of four charm quarks.

A re-examination of a particle discovered in 2015 has scientists debating its true identity. A recent analysis by the LHCb collaboration at CERN raises questions about the identity of this pentaquark—and may have taken scientists back to square one in the search for a particle that could shed light on questions about color.

A new observation by the LHCb experiment finds that charm quarks behave differently than their antiparticle counterparts.