出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：We explore gauge actions for lattice QCD, which are constructed such that the occurrence of small
plaquette values is strongly suppressed. Such actions originate from the admissibility condition
in order to conserve the topological charge. The suppression of small plaquette values is expected
to be advantageous for numerical studies in the e -regime and also for simulations with dynamical
quarks. Performing simulations at a lattice spacing of about 0.1 fm, we present numerical results
for the static potential, the physical scale r0, the stability of the topological charge history, the
condition number of the kernel of the overlap operator and the acceptance rate against the step
size in local HMC algorithm.
