Browsing Pure & Applied Mathematics (Scholarly Publications) by Sponsor "Higher Education Authority"
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Charmonium at high temperature in twoflavor QCD
(American Physical Society, 2007)We compute charmonium spectral functions in 2flavor QCD on anisotropic lattices using the maximum entropy method. Our results suggest that the Swaves (J= and c) survive up to temperatures close to 2Tc, while the Pwaves ... 
Charmonium properties in the quarkgluon plasma
(2007)We present results for charmonium correlators and spectral functions in 2flavour QCD on anisotropic lattices. Our results indicate that the Swaves (J/y and hc) survive up to temperatures close to 2Tc, while the Pwaves ... 
Charmonium spectral functions in Nf=2 QCD
(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
(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 ... 
The effect of pion mass on Skyrme configurations
(2007)In the Skyrme model, atomic nuclei are identified with solitonic configurations. If the pion mass is set to zero, these configurations are spherical shells of energy with a fullerenelike appearance and are well approximated ... 
Improving Algorithms to Compute All Elements of the Lattice Quark Propagator
(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
(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 ... 
Nonperturbative study of the action parameters for anisotropiclattice quarks
(2006)A quark action designed for highly anisotropiclattice simulations is discussed. The massdependence of the parameters in the action is studied and the results are presented. Applications of this action in studies of ... 
Practical alltoall propagators for lattice QCD
(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 ... 
The spectrum of charmed mesons from dynamical anisotropic lattices
(2007)We present our preliminary analysis for the chamonium and Ds spectra obtained from Nf = 2 dynamical anisotropic lattices. We use 123?80 lattices with lattice spacing at = 7.35 GeV?1 and anisotropy of six. Meson correlators ... 
Staticlight hadrons on a dynamical anisotropic lattice
(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
(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. 
Tuning anisotropies for dynamical gauge configurations
(SISSA, 2005)We present methods and results for the tuning of quark and gluon anisotropies for improved actions in Nf = 2 QCD. 
A zeromode quantization of the Skyrmion
(Elsevier, 2006)In the semiclassical approach to the Skyrme model, nuclei are approximated by quantum mechanical states on a finitedimensional space of field configurations; in zeromode quantization this space is generated by rotations ...