The past decades witnessed the golden era of hadron physics. Many excited open heavy
flavor mesons and baryons have been observed since 2017. We shall provide an updated …

Partons in quantum chromodynamics - ScienceDirect Skip to main contentSkip to article
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Using the existing knowledge of the chromodynamic vacuum as a basis we investigate
mesons built from u, d, s quarks and/or gluons. A new classification of hadrons is proposed …

QCD Axial Anomaly Enhances the ηη' Decay of the Hybrid Candidate η 1(1855) - IOPscience
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We present results from a study of centrally produced mesons in 3× 10 6 events with two
small-angle protons at the CERN Intersecting Storage Rings. A high-statistics sample of …

The spectrum of bound states of gluons is discussed within the MIT bag model. We argue
that (1) contrary to previous analysis there is no light exotic 1−+ state in the two gluon …

We calculate the scattering cross section between two 0++ glueballs in SU (2) Yang-Mills
theory on a lattice at β= 2.1, 2.2, 2.3, 2.4, and 2.5 using the indirect (HAL QCD) method. We …

The low-energy meson spectrum is investigated. Quantum numbers of the lightest glueballs
are obtained by studying low-dimension, gauge invariant, colorless operators. A general …

The complete low-lying positive charge conjugation glueball spectrum is obtained from
QCD. The formalism relies on the construction of an efficient quasiparticle gluon basis for …

We study the double-gluon hybrid states with the quark-gluon contents q¯ qgg (q= u/d) and
s¯ sgg. We construct twelve double-gluon hybrid currents with various quantum numbers …