This report describes the physics case, the resulting detector requirements, and the evolving
detector concepts for the experimental program at the Electron-Ion Collider (EIC). The EIC …

The LHCb detector is a forward spectrometer at the Large Hadron Collider (LHC) at CERN.
The experiment is designed for precision measurements of CP violation and rare decays of …

The standard model of particle physics currently provides our best description of
fundamental particles and their interactions. The theory predicts that the different charged …

Conventional, hadronic matter consists of baryons and mesons made of three quarks and a
quark–antiquark pair, respectively,. Here, we report the observation of a hadronic state …

Quantum chromodynamics, the theory of the strong force, describes interactions of coloured
quarks and gluons and the formation of hadronic matter. Conventional hadronic matter …

The quark model was formulated in 1964 to classify mesons as bound states made of a
quark–antiquark pair, and baryons as bound states made of three quarks. For a long time all …

A bstract A test of lepton universality, performed by measuring the ratio of the branching
fractions of the B 0→ K* 0 μ+ μ− and B 0→ K* 0 e+ e− decays,\({R} _ {K^{* 0}}\), is presented …

Particle physics today faces the challenge of explaining the mystery of dark matter, the origin
of matter over anti-matter in the Universe, the origin of the neutrino masses, the apparent …

A narrow pentaquark state, P c (4312)+, decaying to J/ψ p, is discovered with a statistical
significance of 7.3 σ in a data sample of Λ b 0→ J/ψ p K-decays, which is an order of …

Using proton-proton collision data at centre-of-mass energies of s= 7, 8 and 13 TeV
recorded by the LHCb experiment at the Large Hadron Collider, corresponding to an …