Browsing Pure & Applied Mathematics (Scholarly Publications) by Author "PEARDON, MICHAEL"
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Charmonium spectroscopy from an anisotropic lattice study
RYAN, SINEAD; LIU, LIUMING; PEARDON, MICHAEL; VILASECA MAINAR, POL (2011)We present a progress report on our study of the charmonium spectrum in full QCD on anisotropic lattices generated by the Hadron Spectrum Collaboration. We adopt a large basis of interpolating operators to extract the ... 
Coupledchannel DÏ , DÎ· and D<inf>s</inf>KÂ¯ scattering from lattice QCD
RYAN, SINEAD; PEARDON, MICHAEL (2016)We present the rst lattice QCD study of coupledchannel D , D and D s K scattering in isospin1/2 in three partial waves. Using distillation, we compute matrices of correlation functions with bases of ... 
Estimate of the hadronic vacuum polarization disconnected contribution to the anomalous magnetic moment of the muon from lattice QCD
RYAN, SINEAD; PEARDON, MICHAEL (2016)The quarkline disconnected diagram is a potentially important ingredient in lattice QCD calculations of the hadronic vacuum polarization contribution to the anomalous magnetic moment of the muon. It is also a notoriously ... 
Excited and exotic charmonium, D<inf>s</inf> and D meson spectra for two light quark masses from lattice QCD
RYAN, SINEAD; PEARDON, MICHAEL (2016)We present highlyexcited charmonium, D s and D meson spectra from dy namical lattice QCD calculations with light quarks corresponding to M 240 MeV and compare these to previous results with M ... 
Excitedstate spectroscopy of singly, doubly and triplycharmed baryons from lattice QCD
PEARDON, MICHAEL (2013)We present the ground and excited state spectra of singly, doubly and triplycharmed baryons by using dynamical lattice QCD. A large set of baryonic operators that respect the symmetries of the lattice and are obtained ... 
First results from 2+1 dynamical quark flavors on an anisotropic lattice: Lighthadron spectroscopy and setting the strangequark mass
PEARDON, MICHAEL; RYAN, SINEAD (2009)We present the first lighthadron spectroscopy on a set of N f ? 2 ? 1 dynamical, anisotropic lattices. A convenient set of coordinates that parameterize the twodimensional plane of light and strangequark masses ... 
Highly excited and exotic meson spectrum from dynamical lattice QCD
PEARDON, MICHAEL; THOMAS, CHRISTOPHER (2009)Using a new quarkfield 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 ... 
Improved stochastic estimation of quark propagation with Laplacian Heaviside smearing in lattice QCD
PEARDON, MICHAEL (2011)A new method of stochastically estimating the lowlying effects of quark propagation is proposed which allows accurate determinations of temporal correlations of singlehadron and multihadron operators in lattice QCD. The ... 
Isoscalar meson spectroscopy from lattice QCD
PEARDON, MICHAEL; THOMAS, CHRISTOPHER (2011)We extract to high statistical precision an excited spectrum of singleparticle isoscalar mesons using lattice QCD, including states of high spin and, for the first time, light exotic J(PC) isoscalars. The use of a novel ... 
A Novel quarkfield creation operator construction for hadronic physics in lattice QCD
PEARDON, MICHAEL (2009)A new quarkfield smearing algorithm is defined which enables efficient calculations of a broad range of hadron correlation functions. The technique applies a lowrank operator to define smooth fields that are to be used ... 
Phase shift of isospin2 pi pi scattering from lattice QCD
PEARDON, MICHAEL; THOMAS, CHRISTOPHER (2011)Finitevolume lattice QCD calculations offer the possibility of extracting resonance parameters from the energydependent elastic phaseshift computed using the Luscher technique. In this letter, as a trial of the method, ... 
Polynomial Filtered HMC: An Algorithm for lattice QCD with dynamical quarks
PEARDON, MICHAEL (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 timescale integration sc heme allows the filtered ... 
Spectroscopy of doubly and triplycharmed baryons from lattice QCD
PEARDON, MICHAEL (2013) 
Spectroscopy of doubly charmed baryons from lattice QCD
FERREIRA, MAURO; PEARDON, MICHAEL (2015)We present the ground and excited state spectra of doubly charmed baryons from lattice QCD with dynamical quark fields. Calculations are performed on anisotropic lattices of size 163×128, with inverse spacing in temporal ... 
Spectroscopy of triplycharmed baryons from lattice QCD
PEARDON, MICHAEL (2014) 
Toward the excited meson spectrum of dynamical QCD
PEARDON, MICHAEL; THOMAS, CHRISTOPHER (2010)We present a detailed description of the extraction of the highly excited isovector meson spectrum on dynamical anisotropic lattices using a new quarkfield construction algorithm and a large variational basis of operators. ...