The existence and properties of the sigma meson have been controversial for almost six
decades, despite playing a central role in the spontaneous chiral symmetry of QCD or in the …

We review how lattice QCD can contribute to the prediction and the comprehension of
tetraquarks, pentaquarks and related exotic hadrons such as hybrids, with at least one …

Following previous work we further explore the possibility that the chirally broken phase of
gauge theories admits an infrared fixed point interpretation. The slope of the β function, β …

A bstract We calculate the low-lying glueball spectrum of the SU (3) lattice gauge theory in
3+ 1 dimensions for the range β≤ 6. 50 using the standard plaquette action. We do so for …

A bstract The simple analytic structure of meson scattering amplitudes in the large-N c limit,
combined with positivity of the spectral density, provides precise predictions on low-energy …

In this work, we consider the case of a strongly coupled dark/hidden sector, which extends
the Standard Model (SM) by adding an additional non-Abelian gauge group. These …

A bstract We investigate, by means of numerical lattice simulations, the θ-dependence of the
critical deconfinement temperature of SU (N) gauge theories at large N: T c (θ)= T c (0)[1–Rθ …

A bstract The bootstrap approach (demanding consistency conditions to scattering
amplitudes) has shown to be quite powerful to tightly constrain gauge theories at large N c …

Over the last few years lattice techniques have been used to investigate candidate theories
of new physics beyond the standard model. This review gives a survey of results from these …

We revisit and extend previous calculations of glueball decay rates in the Sakai-Sugimoto
model, a holographic top-down approach for QCD with chiral quarks based on D 8-D 8¯ …