Browsing by Author "Siegert, G."

Now showing items 1-4 of 4

    • Article  

      Beautiful baryons from lattice QCD 

      Alexandrou, Constantia; Borrelli, A.; Güsken, S.; Jegerlehner, F.; Schilling, K.; Siegert, G.; Sommer, R. (1994)
      We perform a lattice study of heavy baryons, containing one (Λb) or two b-quarks Ξb. Using the quenched approximation we obtain for the mass of Λb, MΛb = 5.728 ± 0.144 ± 0.018 GeV. The mass splitting between the λb and the ...
    • Article  

      Heavy-light baryonic mass splittings from the lattice 

      Alexandrou, Constantia; Borrelli, A.; Güsken, S.; Jegerlehner, F.; Schilling, K.; Siegert, G.; Sommer, R. (1995)
      We present here lattice estimates of the heavy-light baryon Λb, obtained using propagating heavy quarks. Our result is: MΛstaggeredb = 5.728 ± 0.144 ± 0.018 Gev, after extrapolation to the continuum limit and in the quenched ...
    • Article  

      The leptonic decay constants of {Mathematical expression} mesons and the lattice resolution 

      Alexandrou, Constantia; Güsken, S.; Jegerlehner, F.; Schilling, K.; Siegert, G.; Sommer, R. (1994)
      We present a high statistics study of the leptonic decay constant fP of heavy pseudoscalar mesons using propagating heavy Wilson quarks within the quenched approximation, on lattices covering sizes from about 0.7 fm to 2 ...
    • Article  

      Scaling study of the leptonic decay constants of heavy-light mesons: a consumers report on improvement factors 

      Güsken, S.; Alexandrou, Constantia; Jegerlehner, F.; Schilling, K.; Siegert, G.; Sommer, R. (1994)
      A high statistics calculation, performed at β = 5.74, 6.00 and 6.26, enables us to study the variation of the leptonic decay constant fP of heavy pseudoscalar mesons with the lattice spacing a. We observe only a weak a ...