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- Max Planck Institute for Mathematics in the SciencesDE139 papers
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13 papers · 2 filters
More on String Breaking in the 3D Abelian Higgs Model: the Photon Propagator
M. N. Chernodub, E. -M. Ilgenfritz, A. Schiller
We study the Landau gauge photon propagator in the three--dimensional Abelian Higgs model with compact gauge field and fundamentally charged matter in the London limit. The total g…
Calculation of Moments of Structure Functions
M. Göckeler, R. Horsley, D. Pleiter +3
The progress on the lattice computation of low moments of both the unpolarised and polarised nucleon structure functions is reviewed with particular emphasis on continuum and chira…
Structure functions near the chiral limit
M. Goeckeler, R. Horsley, D. Pleiter +2
We compute hadron masses and the lowest moments of unpolarized and polarized nucleon structure functions down to pion masses of 300 MeV, in an effort to make unambiguous prediction…
A non-perturbative determination of Z_V and b_V for O(a) improved quenched and unquenched Wilson fermions
T. Bakeyev, M. Gockeler, R. Horsley +5
By considering the local vector current between nucleon states and imposing charge conservation we determine, for improved Wilson fermions, its renormalisation constant and…
Finite Size Effects in Nucleon Masses in Dynamical QCD
A. Ali Khan, T. Bakeyev, M. Göckeler +6
For lattice calculations with light dynamical quarks, finite size effects have become an important aspect. We study finite size effects in nucleon masses on N_f=2 dynamical lattice…
Quenched QCD with fixed-point and chirally improved fermion
Christof Gattringer, Meinulf Göckeler, Peter Hasenfratz +9
In this contribution we present results from quenched QCD simulations with the parameterized fixed-point (FP) and the chirally improved (CI) Dirac operator. Both these operators ar…