Vitaly Bornyakov
(Institute for High Energy Physics)
14/06/2010, 16:40
The critical temperature is computed and the nature of the QCD finite temperature phase is studied for N_f = 2 dynamical flavors of nonperturbatively improved Wilson fermions. The new simulations are performed on lattices 40^3 x 14 with lattice spacing and pion mass at the transition close to 0.08 fm and 200 MeV, respectively. We find the deconfinement and chiral phase transitions to coincide...
Takashi Umeda
(Hiroshima Univ.)
14/06/2010, 17:00
Nonzero temperature and density
Status of our study on the equation of state in 2+1 flavor QCD will be presented. We apply the T-integration method to calculate the EOS in the fixed scale approach nonperturbatively. The calculations are performed with the same parameters as the CP-PACS/JLQCD spectrum study, in which the non-perturbatively improved Wilson quarks coupled with the RG improved glue are adopted. We discuss the...
Lars Zeidlewicz
(Uni Muenster / Uni Frankfurt)
14/06/2010, 17:20
Nonzero temperature and density
We present the current status of lattice simulations with Nf=2 maximally twisted mass fermions at finite temperature. In particular, the determination of the thermal transition temperature will be discussed.
Bastian Brandt
(Institut für Kernphysik, Johannes Gutenberg-Universitaet, Mainz)
14/06/2010, 17:40
A lot of effort in lattice simulations over the last years has been devoted to studies of the QCD deconfinement transition. Most state-of-the-art simulations use so called rooted staggered fermions, and are also affected by systematic uncertainties, such as coarse lattices and heavy sea quarks. Therefore it is important to probe the transition with other fermion actions and improve on...
Tigran Kalaydzhyan
(DESY-Hamburg)
14/06/2010, 18:00
Vacuum structure and confinement
We study properties of the non-Abelian vacuum in the presence of constant external magnetic field within the quenched SU(3) lattice gauge theory with tadpole-improved Wilson-Symanzik action and using the chirally invariant lattice Dirac operator. We have found that the magnetic field enhances the chiral symmetry breaking in the confinement phase as well as the local fluctuations of both...
