From the 1 of 6.1k papers with an AI index.
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12 papers · 1 filter
The Spin Content of the Nucleon
R. Altmeyer, M. Göckeler, R. Horsley +2
The fraction of the nucleon spin that is carried by the quarks, , is computed in lattice QCD with dynamical staggered fermions. We obtain the value .
On Oscillations in Cellular Automata
Jan Hemmingsson, Hans J. Herrmann
We investigate cellular automata where some global quantity varies periodically or quasiperiodically with time. We find that these systems are highly predictable, and can be rather…
Multiscaling analysis and width of the active zone of large off-lattice DLA
Peter Ossadnik
We measure the multiscaling behavior of large off-lattice diffusion limited aggregates (DLA). In contrast to previous studies we now find a continuous dependence of the multiscalin…
High precision single-cluster Monte Carlo measurement of the critical exponents of the classical 3D Heisenberg model
C. Holm, W. Janke
We report measurements of the critical exponents of the classical three-dimensional Heisenberg model on simple cubic lattices of size with = 12, 16, 20, 24, 32, 40, and 4…
Renormalisation of lattice currents and the calculation of decay constants for dynamical staggered fermions
R. Altmeyer, K. D. Born, M. Goeckeler +3
A numerical calculation of the lattice staggered renormalisation constants at , is presented. It is seen that there are considerable non-perturbative effects pr…
Finite-Size Scaling Study of the Three-Dimensional Classical Heisenberg Model
Christian Holm, Wolfhard Janke
We use the single-cluster Monte Carlo update algorithm to simulate the three-dimensional classical Heisenberg model in the critical region on simple cubic lattices of size wi…