Browsing Pure & Applied Mathematics (Scholarly Publications) by Author "SKULLERUD, JONIVAR"
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Charmonium spectral functions in Nf=2 QCD
PEARDON, MICHAEL JAMES; SKULLERUD, JONIVAR (Proceedings of Science, 2005)We report on a study of charmonium at high temperature in 2flavour QCD. This is the first such study with dynamical fermions. Using an improved anisotropic lattice action, spectral functions are extracted from correlators ... 
Charmonium spectroscopy on dynamical anisotropic lattices
PEARDON, MICHAEL JAMES; RYAN, SINEAD MARIE; SKULLERUD, JONIVAR (Elsevier, 2006)We present a first study of the charmonium spectrum on Nf = 2 dynamical, anisotropic lattices. We take advantage of alltoall quark propagators to build spatially extended interpolating operators to increase the overlap ... 
Improving Algorithms to Compute All Elements of the Lattice Quark Propagator
PEARDON, MICHAEL JAMES; RYAN, SINEAD MARIE; SKULLERUD, JONIVAR (Elsevier, 2005)We present a new exact algorithm for estimating all elements of the quark propagator. The advantage of the method is that the exact alltoall propagator is reproduced in a large but finite number of inversions. The ... 
Mesons at high temperature in Nf=2 QCD
PEARDON, MICHAEL JAMES; SKULLERUD, JONIVAR (American Physical Society, 2006)We report first results for spectral functions of charmonium in 2flavour QCD. The spectral functions are determined from vector and pseudoscalar correlators on a dynamical, anisotropic lattice. J/ and c are found ... 
Practical alltoall 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 ... 
Staticlight hadrons on a dynamical anisotropic lattice
PEARDON, MICHAEL JAMES; RYAN, SINEAD MARIE; SKULLERUD, JONIVAR (Proceedings of Science, 2005)We present preliminary results for the staticlight meson and baryon spectra for Nf = 2 QCD. The study is performed on an anisotropic lattice and uses a new alltoall propagator method allowing us to determine particle ... 
Staticlight matrix elements on a dynamical antisotropic lattice
PEARDON, MICHAEL JAMES; RYAN, SINEAD MARIE; SKULLERUD, JONIVAR (Elsevier, 2005)The staticlight matrix element needed to determine fB is studied on an anisotropic lattice with Nf = 2. The improvement in precision due to stout links and alltoall propagators is investigated.