Browsing by Author "De Forcrand, P."

Now showing items 1-7 of 7

    • Article  

      Deconfinement phase transition in one-flavor QCD 

      Alexandrou, Constantia; Boriçi, A.; Feo, A.; De Forcrand, P.; Galli, A.; Jegerlehner, F.; Takaishi, T. (1999)
      We present a study of the deconfinement phase transition of one-flavor QCD using the multiboson algorithm. The mass of the Wilson fermions relevant for this study is moderately large and the non-Hermitian multiboson method ...
    • Article  

      Efficiency of the UV-filtered multiboson algorithm 

      Alexandrou, Constantia; De Forcrand, P.; D'Elia, M.; Panagopoulos, Haralambos G. (2000)
      We study the efficiency of an improved multiboson algorithm with two flavors of Wilson fermions in a realistic physical situation (β=5.60,κ=0.156 on a 163X24 lattice). The performance of this exact algorithm is compared ...
    • Article  

      First principles calculations of nucleon and pion form factors: Understanding the building blocks of nuclear matter from lattice QCD 

      Alexandrou, Constantia; Bistrovic, B.; Edwards, R. G.; De Forcrand, P.; Fleming, G.; Hägler, P.; Negele, J. W.; Orginos, K.; Pochinsky, A.; Renner, D. B.; Richards, D. G.; Schroers, W.; Tsapalis, Antonios (2005)
      Lattice QCD is an essential complement to the current and anticipated DOE-supported experimental program in hadronic physics. In this paper we address several key questions central to our understanding of the building ...
    • Article  

      Laplacian gauge gluon propagator in SU(Nc) 

      Alexandrou, Constantia; De Forcrand, P.; Follana, E. (2002)
      We examine the gluon propagator in the Laplacian gauge in quenched lattice QCD as a function of the number of colors. We observe a weak dependence on Nc over the whole momentum range. This implies an almost Nc-independent ...
    • Article  

      N-to-Δ electromagnetic-transition form factors from lattice QCD 

      Alexandrou, Constantia; De Forcrand, P.; Neff, H.; Negele, J. W.; Schroers, W.; Tsapalis, Antonios (2005)
      The magnetic dipole (M1), the electric quadrupole (E2), and the Coulomb quadrupole (C2) amplitudes for γN → Δ are calculated in quenched lattice QCD. Using a new method, which combines an optimal choice of interpolating ...
    • Article  

      One-flavour QCD at finite temperature 

      Alexandrou, Constantia; Boriçi, A.; Feo, A.; De Forcrand, P.; Galli, A.; Jegerlehner, F.; Takaishi, T. (1998)
      We present results, for heavy to moderate quark masses, of a study of thermodynamic properties of 1-flavour QCD, using the multiboson algorithm. Finite-size scaling behaviour is studied on lattices of size 83 × 4, 123 × 4 ...
    • Article  

      Thermodynamics of 1-flavor QCD 

      Alexandrou, Constantia; Boriçi, A.; Feo, A.; De Forcrand, P.; Galli, A.; Jegerlehner, F.; Takaishi, T. (1997)
      We present first results, for heavy to moderate quark masses, of a study of thermodynamic properties of 1-flavor QCD, using the multiboson algorithm.