Flavour physics Archives – Page 7 of 29

The hitchhiker’s guide to weak decays

Andrzej Buras’s new book, Gauge Theory of Weak Decays, is an indispensable travel guide to unexplored territory in weak decays, writes our reviewer.

Artist’s impression of a Zcs+ tetraquark

LHCb observes four new tetraquarks

The collaboration has used Run 2 data to add new exotic states to the tally of tetraquarks previously discovered in B⁺→J/ψφK⁺ decays in 2016.

LHCb sheds light on V_ub puzzle

LHCb has recently published a new result on |V_ub| using the first ever measurement of the B_s⁰→K^–μ⁺ν_μ decay.

Heavy-flavour highlights from Beauty 2020

Flavour studies have a bright future, concluded conference delegates, who discussed impressive recent results in CP violation and the status of Belle II and upgrades to the LHC experiments.

J/ψ polarisation differs in lead collisions

Work now turns to connecting such observations with the known suppression and regeneration mechanisms in heavy-ion collisions.

CMS reaffirms exotic nature of the X(3872)

The tetraquark candidate could be a bound state of a charm-up diquark and its anti-diquark.

ICHEP’s online success

Advances in Higgs, flavour and neutrino physics were among the highlights of ICHEP 2020, writes Mark Thomson.

Double digits for ultra-rare kaon decay

CERN’s NA62 collaboration has presented 3.5σ evidence for K⁺→π⁺νν̄ – a “golden decay” with exceptional sensitivity to physics beyond the Standard Model