Protons and neutrons have a rich structure in terms of their constituents, the quarks and gluons. Understanding this structure requires solving Quantum Chromodynamics (QCD). However QCD is extremely complicated, so we must numerically solve the equations of QCD using a method known as lattice QCD. Here we describe a typical lattice QCD calculation by examining our recent computation of the nucl...

In these lectures, we introduce finite temperature QCD on the lattice to nonexperts of the subject. We first formulate lattice QCD both at zero and finite temperatures. Then a section is devoted to the topic of improved lattice actions which are becoming an essential ingredient of precision studies of QCD on the lattice. We then discuss about finite temperature SU(3) gauge theory, i.e. QCD with...

I report on lattice QCD calculations that study the properties of the a0 and f0 mesons.

The paper is devoted to the calculation of additional two-loop O(αs) MSSM corrections to the relation between the pole mass of the t-quark and its running mass in the DR scheme. Firstly, a contribution from axial part of the quark self-energy, which was erroneously omitted in our earlier work, is obtained. Secondly, the value of the second order contribution from large mass expansion in mt/MSUS...

An overview of lattice results for the strange quark mass, BK , B6, B7, and B8 is presented. I give my assessment of the reliability of various estimates and prospects for future improvements.

I review recent progress and results in lattice QCD obtained using fermions with exact chiral symmetry.

With help of brane configuration of N=2 solution, we analyze the strong coupling moduli of N=2 QCD. As a result we describe S-dual in N=2 QCD and give its curve. We also explain some relation to nonAbelian duality in N=1 QCD.

The thermal glueball is studied at finite temperature by using SU(3) anisotropic lattice QCD with βlat = 6.25, the renormalized anisotropy ξ ≡ as/at = 4 over the lattice of the size 20 × Nt with various Nt at the quenched level. While the narrow peak ansatz leads to the significant polemass reduction of about 300 MeV near the critical temperature Tc, Breit-Wigner ansatz which can take into acco...