# Flavour physics

Read article 'LHCb digs deeper into lepton-flavour universality'

### LHCb digs deeper into lepton-flavour universality

The LHCb collaboration has released yet another result in its campaign to test lepton-flavour universality. Following anomalies already detected in the rate that B mesons decay into muons compared to ...

Read article 'ALICE studies possible light tetraquark'

### ALICE studies possible light tetraquark

Radius parameters versus average transverse kaon-pair momentum determined from K0S – K± correlations and identical-kaon correlations in central ALICE lead–lead collisions.   The a0(980) ...

Read article 'The rarest B0 decay ever observed'

### The rarest B0 decay ever observed

The LHCb collaboration has observed the rare baryonic decay B0 → pp, as first presented at the European Physical Society conference in Venice in early July. The branching fraction was measured a...

Read article 'LHCb discovers new baryon'

### LHCb discovers new baryon

The LHCb collaboration has discovered a new weakly decaying particle: a baryon called the Ξ++cc, which contains two charm quarks and an up quark. The discovery of the new particle, which was observed...

Read article 'Belle II rolls in'

### Belle II rolls in

On 11 April, the Belle II detector at the KEK laboratory in Japan was successfully “rolled-in” to the collision point of the upgraded SuperKEKB accelerator, marking an important milestone for the ...

Read article 'LHCb finds new hints of Standard Model discrepancy'

### LHCb finds new hints of Standard Model discrepancy

At a seminar at CERN on 18 April, the LHCb collaboration presented new results in flavour physics that show an interesting departure from Standard Model (SM) predictions. The new measurement concerns ...

Read article 'Rare decay puts Standard Model on the spot'

### Rare decay puts Standard Model on the spot

The decay rate of the B0s meson to two muons is a flagship measurement in flavour physics. It is extremely rare and well predicted in the Standard Model (SM), with a branching fraction of (3.65±0.23)...

Read article 'LHCb sees first hints of CP violation in baryons'

### LHCb sees first hints of CP violation in baryons

The LHCb experiment has uncovered tantalising evidence that baryons made of matter behave differently to those made of antimatter, violating fundamental charge-parity (CP) symmetry. Although CP-violat...