RSS 1.0Pure & Applied Mathematics (Scholarly Publications)
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A Novel quark-field creation operator construction for hadronic physics in lattice QCD
(2009)A new quark-field smearing algorithm is defined which enables efficient calculations of a broad range of hadron correlation functions. The technique applies a low-rank operator to define smooth fields that are to be used ... -
Polynomial Filtered HMC: An Algorithm for lattice QCD with dynamical quarks
(2012)Polynomial approximations to the inverse of the fermion matrix are u sed to filter the dynamics of the upper energy scales in HMC simulations. The use of a multiple time-scale integration sc heme allows the filtered ... -
Highly excited and exotic meson spectrum from dynamical lattice QCD
(2009)Using a new quark-field construction algorithm and a large variational basis of operators, we extract a highly excited isovector meson spectrum on dynamical anisotropic lattices. We show how carefully constructed operators ... -
Excited-state spectroscopy of singly, doubly and triply-charmed baryons from lattice QCD
(2013)We present the ground and excited state spectra of singly, doubly and triply-charmed baryons by using dynamical lattice QCD. A large set of baryonic operators that respect the symmetries of the lattice and are obtained ... -
Quillen homology for operads via Gröbner bases
(2013)The main goal of this paper is to present a way to compute Quillen homology of operads. The key idea is to use the notion of a shuffle operad we introduced earlier; this allows to compute, for a symmetric operad, the ... -
S wave bottomonium states moving in a quark-gluon plasma from lattice NRQCD
(2013)We extend our study of bottomonium spectral functions in the quark-gluon plasma to nonzero momentum. We use lattice QCD simulations with two flavours of light quark on highly anisotropic lattices and treat the bottom quark ... -
Excited and exotic charmonium spectroscopy from lattice QCD
(2012)We present a spectrum of highly excited charmonium mesons up to around 4.5 GeV calculated using dynamical lattice QCD. Employing novel computational techniques and the variational method with a large basis of carefully ... -
Excited spectroscopy of charmed mesons from lattice QCD
(2013)We present spectra of highly excited D and D s mesons up to around 3.8 GeV determined using dynamical lattice QCD. We employ novel computational techniques and the variational method with a large basis of carefully constructed ... -
Melting of P wave bottomonium states in the quark-gluon plasma from lattice NRQCD
(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 ...