We present results of phase shift for I = 2 S-wave ππ system with the Wilson fermions in the quenched approximation. The finite size method proposed by Lüscher is employed, and calculations are carried out at
MOTIVATION Reliable structural modelling of protein-protein complexes has widespread application, from drug design to advancing our knowledge of protein interactions and function. This work addresses three important issues in protein-protein docking: implementing backbone flexibility, incorporating prior indications from experiment and bioinformatics, and… (More)
Increasingly, experimental data on biological systems are obtained from several sources and computational approaches are required to integrate this information and derive models for the function of the system. Here, we demonstrate the power of a logic-based machine learning approach to propose hypotheses for gene function integrating information from two… (More)
We present our final results of the charmonium spectrum in quenched QCD on anisotropic lattices. Simulations are made with the plaquette gauge action and a tadpole improved clover quark action employing ξ = as/at = 3. We calculate the spectrum of Sand P-states and their excitation, and study the scaling behavior of mass splittings. Comparison is made with… (More)
We present a fully non-perturbative determination of the O(a) improvement coefficient cSW in three-flavor dynamical QCD for the RG improved as well as the plaquette gauge actions, using the Schrödinger functional scheme. Results are compared with one-loop estimates at weak gauge coupling.
We present a calculation of the scattering phase shift for the I = 2 S-wave pion-pion system in the continuum limit with two-flavor full QCD. Calculations are made at three lattice spacings, using the finite volume method of Lüscher in the center of mass frame, and its extension to the laboratory frame.
We explore the region of small sea quark masses below mP S /mV = 0.5 in two-flavor QCD using a mean-field improved clover quark action and an RG-improved gauge action at a ≃ 0.2 fm on 12 3 × 24 and 16 3 × 24 lattices. We find that instability of the standard BiCGStab algorithm at small quark masses can be mostly removed by the BiCGStab(DS-L) algorithm,… (More)
We present preliminary results of scattering length and phase shift for I=2 S-wave ππ system with the Wil-son fermions in the quenched approximation. The finite size method presented by Lüscher is employed, and calculations are carried out at β = 5.9 on a 24 3 × 60 and 32 3 × 60 lattice.
In designing an algorithm to find pairs of points that are within Euclidean distance d it is effective to use a screening procedure to reject most pairs of points that are far apart. A procedure based on multiple, overlapping lattices can efficiently identify close points and exclude distant ones.
We present results for the equation of state for pure SU(3) gauge theory obtained on anisotropic lattices with the anisotropy ξ ≡ as/at = 2. The pressure and energy density are calculated on Nt/ξ = 4, 5 and 6 lattices with the integral method. They are found to satisfy the leading 1/N 2 t scaling from our coarsest lattice Nt/ξ = 4. This enables us to carry… (More)