Zobrazeno 1 - 10
of 28
pro vyhledávání: '"Bonnet, Frederic D. R."'
Autor:
LHP Collaboration, Bonnet, Frederic D. R., Edwards, Robert G., Fleming, George T., Lewis, Randy, Richards, David G.
Publikováno v:
Phys.Rev.D72:054506,2005
We report on a program to compute the electromagnetic form factors of mesons. We discuss the techniques used to compute the pion form factor and present results computed with domain wall valence fermions on MILC asqtad lattices, as well as with Wilso
Externí odkaz:
http://arxiv.org/abs/hep-lat/0411028
Autor:
LHP Collaboration, Fleming, George T., Bonnet, Frederic D. R., Edwards, Robert G., Lewis, Randy, Richards, David G.
Publikováno v:
Nucl.Phys.Proc.Suppl.140:302-304,2005
We compute the pion electromagnetic form factor in a hybrid calculation with domain wall valence quarks and improved staggered (asqtad) sea quarks. This method can easily be extended to rho-to-gamma-pi transition form factors.
Comment: 3 pages,
Comment: 3 pages,
Externí odkaz:
http://arxiv.org/abs/hep-lat/0409081
Autor:
LHPC Collaboration, Bonnet, Frederic D. R., Edwards, Robert G., Fleming, George T., Lewis, Randy, Richards, David G.
Publikováno v:
Nucl.Phys.Proc.Suppl.128:59-65,2004
We have started a program to compute the electromagnetic form factors of mesons. We discuss the techniques used to compute the pion form factor and present preliminary results computed with domain wall valence fermions on MILC asqtad lattices, as wel
Externí odkaz:
http://arxiv.org/abs/hep-lat/0312008
Autor:
Byrnes, T. M. R., Loan, M., Hamer, C. J., Bonnet, Frederic D. R., Leinweber, Derek B., Williams, Anthony G., Zanotti, James M.
Publikováno v:
Phys.Rev.D69:074509,2004
The extreme anisotropic limit of Euclidean SU(3) lattice gauge theory is examined to extract the Hamiltonian limit, using standard path integral Monte Carlo (PIMC) methods. We examine the mean plaquette and string tension and compare them to results
Externí odkaz:
http://arxiv.org/abs/hep-lat/0311014
Autor:
Bonnet, Frederic D. R., Edwards, Robert G., Fleming, George T., Lewis, Randy, Richards, David G.
Publikováno v:
Nucl.Phys.Proc.Suppl.129:206-208,2004
A ratio of lattice correlation functions is identified from which the pion form factor can be obtained directly. Preliminary results from quenched Wilson simulations are presented.
Comment: Lattice2003(matrix), 3 pages, 3 figures
Comment: Lattice2003(matrix), 3 pages, 3 figures
Externí odkaz:
http://arxiv.org/abs/hep-lat/0310053
Autor:
Zhang, J. B., Bonnet, Frederic D. R., Bowman, Patrick O., Leinweber, Derek B., Williams, Anthony G.
Publikováno v:
Phys.Rev.D70:034505,2004
The properties of the momentum space quark propagator in Landau gauge are examined for the overlap quark action in quenched lattice QCD. Numerical calculations are done on three lattices with different lattice spacings and similar physical volumes to
Externí odkaz:
http://arxiv.org/abs/hep-lat/0301018
Autor:
Bonnet, Frédéric D. R., Bowman, Patrick O., Leinweber, Derek B., Williams, Anthony G., Zhang, J. B.
Publikováno v:
Phys.Rev.D65:114503,2002
The properties of the quark propagator in Landau gauge in quenched QCD are examined for the overlap quark action. The overlap quark action satisfies the Ginsparg-Wilson relation and as such provides an exact lattice realization of chiral symmetry. Th
Externí odkaz:
http://arxiv.org/abs/hep-lat/0202003
Autor:
Williams, Anthony G., Bonnet, Frederic D. R., Bowman, Patrick O., Leinweber, Derek B., Skullerud, Jon Ivar, Zanotti, James M.
Lattice-based investigations of two fundamental QCD quantities are described, namely the gluon and quark propagators in Landau gauge. We have studied the Landau gauge gluon propagator using a variety of lattices with spacings from a = 0.17 to 0.41 fm
Externí odkaz:
http://arxiv.org/abs/hep-ph/0107029
Publikováno v:
Phys.Rev.D65:114510,2002
The relative smoothing rates of various gauge field smoothing algorithms are investigated on ${\cal O}(a^2)$-improved $\suthree$ Yang--Mills gauge field configurations. In particular, an ${\cal O}(a^2)$-improved version of APE smearing is motivated b
Externí odkaz:
http://arxiv.org/abs/hep-lat/0106023
Autor:
Bonnet, Frederic D. R., Fitzhenry, Patrick, Leinweber, Derek B., Stanford, Mark R., Williams, Anthony G.
Publikováno v:
Phys.Rev.D62:094509,2000
The action and topological charge are used to determine the relative rates of standard cooling and smearing algorithms in pure SU(3)-color gauge theory. We consider representative gauge field configurations on $16^3\times 32$ lattices at $\beta=5.70$
Externí odkaz:
http://arxiv.org/abs/hep-lat/0001018