Fabian Zierler

Resonant scattering in two-flavored Sp(4) lattice gauge theories

Ed Bennett, Yannick Dengler, Deog Ki Hong +8

We apply Lüscher's method to the vector channel of the scattering amplitude of Pseudo-Nambu-Goldstone-Bosons (PNGBs), in the $S p (4)$ lattice gauge theory coupled to $N_{f} = 2$ flavors…

Lattice studies of chimera baryons in Sp(4) gauge theory

Jong-Wan Lee, Ed Bennett, Luigi Del Debbio +10

We study chimera baryons, fermion bound states composed of two (hyper)quarks transforming in the fundamental and one in the antisymmetric representation of a non-Abelian gauge grou…

Vector-channel scattering of dark particles in a Sp(4) gauge theory

Jong-Wan Lee, Ed Bennett, Yannick Dengler +8

We report new results obtained in our lattice studies of the $S p (4)$ gauge theory coupled to two fundamental Dirac fermions. This theory provides a candidate for the dynamical orig…

Finite-temperature Sp(4) Yang-Mills theory: towards the continuum

Fabian Zierler, Ed Bennett, Biagio Lucini +4

We present numerical results obtained in a finite-temperature study of the Sp(4) Yang-Mills theory on the lattice. We study its first-order confinement/deconfinement phase transiti…

hep-ph2026

Chiral symmetry restoration effects onto the meson spectrum from a Dyson-Schwinger and Bethe-Salpeter approach

Reinhard Alkofer, Christian S. Fischer, Fabian Zierler

Light meson spectra are studied in a Dyson-Schwinger/Bethe-Salpeter approach to QCD. By varying the interaction strength of three sets of models for the quark-antiquark interaction…

Finite-temperature Yang-Mills theories with the density of states method: towards the continuum limit

Ed Bennett, Biagio Lucini, David Mason +4

A first-order, confinement/deconfinement phase transition appears in the finite temperature behavior of many non-Abelian gauge theories. These theories play an important role in pr…

Chimera baryons and mesons on the lattice: a spectral density analysis

Ed Bennett, Luigi Del Debbio, Niccolò Forzano +10

We develop and test a spectral-density analysis method, based on the introduction of smeared energy kernels, to extract physical information from two-point correlation functions co…

Progress on lattice study of the chimera baryon spectrum in Sp(4) gauge theory

C. -J. David Lin, Ed Bennett, Niccolò Forzano +7

Investigation of composite Higgs models (CHMs) is of importance in contemporary particle physics. In this article, we present lattice computations of the chimera baryon masses in $…

Scattering of SIMPlectic Dark Pions

Yannick Dengler, Axel Maas, Fabian Zierler

We study the scattering of two identical pNGBs (pseudo-Nambu-Goldstone Bosons) in Sp(4) gauge theory with two mass-degenerate Dirac fermions in the pseudo-real fundamental represen…

Progress on the spectroscopy of an Sp(4) gauge theory coupled to matter in multiple representations

Ho Hsiao, Ed Bennett, Niccolò Forzano +7

We report progress on our lattice calculations for the mass spectra of low-lying composite states in the Sp(4) gauge theory coupled to two and three flavors of Dirac fermions trans…

Updates on the density of states method in finite temperature symplectic gauge theories

David Mason, Ed Bennett, Biagio Lucini +4

First-order phase transitions in the early universe have rich phenomenological implications, such as the production of a potentially detectable signal of stochastic relic backgroun…

Progress on the spectroscopy of lattice gauge theories using spectral densities

Ed Bennett, Luigi Del Debbio, Niccolò Forzano +10

Spectral densities encode non-perturbative information crucial in computing physical observables in strongly coupled field theories. Using lattice gauge theory data, we perform a s…

Progress on pseudoscalar flavour-singlets in Sp(4) with mixed fermion representations

Fabian Zierler, Ed Bennett, Niccolò Forzano +7

We measure the masses of the pseudoscalar flavour-singlet meson states in the $S p (4)$ gauge theory coupled to two Dirac fermions transforming in the fundamental representation and…

hep-lat2024★ 1 cited

Scattering of dark pions in Sp(4) gauge theory

Yannick Dengler, Axel Maas, Fabian Zierler

Analyzes of astrophysical data provide first hints on the self-interactions of dark matter at low energies. Lattice calculations of dark matter theories can be used to investigate…

Mixing between flavor singlets in lattice gauge theories coupled to matter fields in multiple representations

Ed Bennett, Niccolò Forzano, Deog Ki Hong +7

We provide the first extensive, numerical study of the non-trivial problem of mixing between flavor-singlet composite states emerging in strongly coupled lattice field theories wit…