Mon·Aug 26, 2002Monday·August 26, 2002

1. 01*

   Interacting staggered domain wall fermions

   Pavlos M. Vranas🇺🇸 · George T. Fleming🇺🇸

   The behavior of staggered domain wall fermions in the presence of gauge fields is presented. In particular, their response to gauge fields with nontrivial topology is discussed.

   hep-lathep-phNucl.Phys.B Proc.Suppl.(2003)·0 citations
2. 02*

   The Thermal Width of the Glueball at Non-Zero Temperature

   Noriyoshi Ishii (Wako, RIKEN)🇯🇵 · Hideo Suganuma (Tokyo Inst. Tech.)🇯🇵 · Hideo Matsufuru (Kyoto U., Yukawa Inst., Kyoto)🇯🇵

   We use SU(3) anisotropic lattice QCD at quenched level to study the 0++ glueball correlator at various temperature taking into account the possible existence of the thermal width in the ground-state peak. For this purpose, we adopt the Breit-Wigner ansatz for the appropriate fit-function for the lattice data obtained with 5,500-9,900 gauge configurations at each T. The results show the significant thermal width broadening as Gamma(T_c) \sim 300 MeV with a reduction in the peak center as Delta omega_0(T_c) \sim 100 MeV near the critical temperature T_c.

   hep-latNucl.Phys.B Proc.Suppl.(2003)·1 citation
3. 03*

   The Color-Flavor Transformation and Lattice QCD

   B. Schlittgen🇺🇸 · T. Wettig🇺🇸

   We present the color-flavor transformation for gauge group SU(N_c) and discuss its application to lattice QCD.

   hep-latNucl.Phys.B Proc.Suppl.(2003)·6 citations
4. 04*

   Quenched Chiral Log and Light Quark Mass from Overlap Fermions

   Terrence Draper🇺🇸 · Shao-Jing Dong🇺🇸 · Ivan Horvath🇺🇸 · Frank Lee🇺🇸 · Keh-Fei Liu🇺🇸 · Nilmani Mathur🇺🇸 · Jianbo Zhang🇦🇺

   We study the quenched chiral behavior of the pion with mass as low as $\approx 180$ MeV. The calculation is done on a quenched lattice of size $16^3\times 28$ and $a=0.2$ fm with 80 configurations using overlap fermions and an improved gauge action. Using an improved constrained curve fitting technique, we find that the ground state pseudoscalar mass versus bare quark mass behavior is well controlled with small statistical errors; this permits a reliable fit of the quenched chiral log effects, a determination of the chiral log parameter ($\delta =0.26(3)$), and an estimate of the renormalized mass of the light quark ($m^{\overline{MS}}(\mu =2\mathrm{GeV})=3.7(3)\mathrm{MeV}$).

   hep-latNucl.Phys.B Proc.Suppl.(2003)·6 citations

* Reconstructed cohort: no mailing for this day survives in the archive. Papers are grouped by their submission times and arXiv's announcement cut-off, assuming announcement without delay; positions follow identifier order. Validated at ~91% exact-day agreement against the archived era.