Lattice2010

Session

Parallel 04: Nonzero temperature and density

14 Jun 2010, 16:40

Villasimius, Sardinia

314. Finite temperature phase transition with two flavors of improved Wilson fermions

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...

178. EOS in 2+1 flavor QCD with improved Wilson quarks by the fixed scale approach

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...

15. Thermal transition temperature from twisted mass QCD

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.

51. Towards the N_{f}=2 deconfinement transition temperature with O(a) improved Wilson fermions

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...

340. The Chiral Magnetic Effect and symmetry breaking in SU(3) quenched theory

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...