Quantum Chromodynamics, the theory of quarks and gluons, whose interactions can be
described by a local SU (3) gauge symmetry with charges called “color quantum numbers” …

We study the process e+ e-→ Λ c+ Λ¯ c-at twelve center-of-mass energies from 4.6119 to
4.9509 GeV using data samples collected by the BESIII detector at the BEPCII collider. The …

We present a combined analysis of the electromagnetic form factors of the nucleon in the
space-and timelike regions using dispersion theory. Our framework provides a consistent …

A bstract We compute the hadronic running of the electromagnetic and weak couplings in
lattice QCD with N f= 2+ 1 flavors of\(\mathcal {O}\)(a) improved Wilson fermions. Using two …

A proton is a bound state of a strong interaction, governed by Quantum Chromodynamics
(QCD). The electric charge radius of a proton, denoted by r E p, characterizes the spatial …

The singly Cabibbo-suppressed decay Λ c+→ n π+ is observed for the first time with a
statistical significance of 7.3 σ by using 3.9 fb-1 of e+ e-collision data collected at center-of …

Using e+ e− collision data at ten center-of-mass energies between 2.644 and 3.080 GeV
collected with the BESIII detector at BEPCII and corresponding to an integrated luminosity of …

Production of pp¯ and nn¯ pairs in e+ e-annihilation near the threshold of the process is
discussed with account for the new experimental data that appeared recently. Since a …

Electromagnetic form factors are fundamental observables that describe the electric and
magnetic structure of hadrons and provide keys to understand the strong interaction. At the …

The effects of final-state interaction of hadrons, produced in e+ e− annihilation near the
threshold, are discussed. If there is a loosely bound state or a virtual state in a system of …