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- Subhasish Basak, Ikuro Sato, Stephen Wallace, Robert Edwards, David Richards, George T Fleming +3 others
- 2006

The effects of Gaussian quark-field smearing and analytic stout-link smearing on the correlations of gauge-invariant extended baryon operators are studied. Gaussian quark-field smearing substantially reduces contributions from the short wavelength modes of the theory, while stout-link smearing significantly reduces the noise from the stochastic evaluations.… (More)

We study the extent of the conformal window for an SU(3) gauge theory with N{f} Dirac fermions in the fundamental representation. We present lattice evidence for 12<or=N{f}<or=16 that the infrared behavior is governed by a fixed point, while confinement and chiral symmetry breaking are present for N{f}<or=8.

- George T Fleming, John B Kogut, Pavlos M Vranas
- 2008

The dynamical N = 1, SU(2) Super Yang-Mills theory is studied on the lattice using a new lattice fermion regulator, domain wall fermions. This formulation even at non-zero lattice spacing does not require fine-tuning, has improved chiral properties and can produce topological zero-mode phenomena. Numerical simulations of the full theory on lattices with the… (More)

- Research Showcase, Cmu, Subhasish Basak, Robert G Edwards, G T Fleming, Jimmy Keisuke +10 others
- 2015

Energies for excited isospin I 1 2 and I 3 2 states that include the nucleon and families of baryons are computed using quenched, anisotropic lattices. Baryon interpolating field operators that are used include nonlocal operators that provide G 2 irreducible representations of the octahedral group. The decomposition of spin 5 2 or higher spin states is… (More)

- A Walker-Loud, H.-W Lin, D G Richards, R G Edwards, M Engelhardt, G T Fleming +12 others
- 2009

Citation Walker-Loud, A. et al. " Light hadron spectroscopy using domain wall valence quarks on an asqtad sea. Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. The MIT Faculty has made this article openly available. Please share how this access… (More)

- George T Fleming
- 2000

We present results from simulations of two flavor QCD thermodynamics at N t = 4 with domain wall fermions. In contrast to other lattice fermion formulations, domain wall fermions preserve the full SU L (N f) ⊗ SU R (N f) symmetry of the continuum at finite lattice spacing (up to terms exponentially small in an extra parameter). Just above the phase… (More)

- George T Fleming
- 2008

Dynamical electroweak symmetry breaking (DEWSB) has been a viable option for the completion of the standard model for over thirty years. Precision electroweak studies indicate that the new strong interactions that break EW symmetry cannot be a scaled-up copy of QCD. Building viable models of DEWSB is difficult without a detailed understanding of such… (More)

- A Poole, R C Brown, G T Fleming
- Environmental health perspectives
- 1983

The cell transforming ability of asbestos dusts was investigated using C3H10T1/2 murine fibroblasts. In a series of experiments, crocidolite and amosite caused no increase in the number of transformed colonies over that seen in cultures from untreated cells. The dusts were, however, capable of augmenting the oncogenic effect of benzo(a)pyrene. This… (More)

- Research Showcase, Cmu, Subhasish Basak, Robert G Edwards, G T Fleming, U M Heller +9 others
- 2015

The design and implementation of large sets of spatially extended, gauge-invariant operators for use in determining the spectrum of baryons in lattice QCD computations are described. Group-theoretical projections onto the irreducible representations of the symmetry group of a cubic spatial lattice are used in all isospin channels. The operators are… (More)

- Research Showcase, Cmu, Subhasish Basak, Robert G Edwards, George T Fleming, Urs M Heller +5 others
- 2015

Large sets of baryon interpolating field operators are developed for use in lattice QCD studies of baryons with zero momentum. Operators are classified according to the double-valued irreducible representations of the octahedral group. At first, three-quark smeared, local operators are constructed for each isospin and strangeness and they are classified… (More)