Browsing Pure & Applied Mathematics by Subject "Lattice QCD"

Now showing items 1-11 of 11

    • Charmed tetraquarks from lattice QCD 

      THORNTON, BARRY WILLIAM (Trinity College Dublin. School of Mathematics. Discipline of Pure & Applied Mathematics, 2018)

    • Exploring efficient methods for precision QCD calculations on the lattice 

      Bushnaq, Lucius Nabil (Trinity College Dublin. School of Mathematics. Discipline of Pure & Applied Mathematics, 2023)
      We study a new technique for stochastic noise reduction in the calculation of propagators by implementing it in OpenQ*D for two ensembles with O(a) improved Wilson fermion ac- tion, with periodic boundary conditions and ...

    • Hadron Scattering Amplitudes from Lattice QCD 

      Lang, Nicolas (Trinity College Dublin. School of Mathematics. Discipline of Pure & Applied Mathematics, 2023)
      In this thesis we compute hadron scattering amplitudes within the framework of lattice quantum chromodynamics. Finite-volume spectra are computed using distillation and the variational method. These spectra constrain ...

    • Heavy Hadron Spectroscopy from Lattice QCD 

      Gayer, Luke Richard (Trinity College Dublin. School of Mathematics. Discipline of Pure & Applied Mathematics, 2024)
      In this thesis, heavy hadron spectroscopy was studied through the formalism of lattice quantum chromodynamics. A summary of relevant theory is provided, followed by an overview of the current state-of-the-art spectroscopy ...

    • Melting of P wave bottomonium states in the quark-gluon plasma from lattice NRQCD 

      RYAN, SINEAD (2013)
      We study the fate of P wave bottomonium states in the quark-gluon plasma, using a spectral function analysis of euclidean lattice cor relators. The correlators are obtained from lattice QCD simulations with two ...

    • Practical all-to-all propagators for lattice QCD 

      PEARDON, MICHAEL JAMES; RYAN, SINEAD MARIE; SKULLERUD, JONIVAR (Elsevier, 2005)
      A new method for computing all elements of the lattice quark propagator is proposed. The method combines the spectral decomposition of the propagator, computing the lowest eigenmodes exactly, with noisy estimators which ...

    • QCD Coupling from a Nonperturbative Determination of the Three-Flavor ?? Parameter 

      Sint, Stefan; Fritzsch, Patrick (2017)
      We present a lattice determination of the Λ parameter in three-flavor QCD and the strong coupling at the Z pole mass. Computing the nonperturbative running of the coupling in the range from 0.2 to 70 GeV, and using ...

    • String breaking by light and strange quarks in QCD 

      Peardon, Michael (Elsevier, 2019)
      The energy spectrum of a system containing a static quark anti-quark pair is computed for a wide range of source separations using lattice QCD with Nf=2+1 dynamical flavours. By employing a variational method with a basis ...

    • String breaking from Lattice QCD with Nf=2+1 dynamical fermions 

      KOCH, VANESSA (Trinity College Dublin. School of Mathematics. Discipline of Pure & Applied Mathematics, 2019)
      In quantum chromodynamics (QCD), the static potential V (r) is defined as the energy of the ground state of the system containing a static quark and a static antiquark, separated by a distance r. As a consequence of confinement, ...

    • String breaking with 2+1 dynamical fermions using the stochastic LapH-method 

      Peardon, Michael (2018)
      The static potential V(r) between a static quark and a static antiquark separated by a distance r is defined as the energy of the ground state of the system. As a consequence of confinement, the energy between the ...

    • Towards Excited Radiative Transitions in Charmonium 

      O'HARA, CIAN (Trinity College Dublin. School of Mathematics. Discipline of Pure & Applied Mathematics, 2019)
      In this thesis lattice QCD is utilised to investigate the spectrum of charmonium and charmed mesons with the aim of working towards investigating radiative transitions between excited states in the charmonium spectrum. ...