Browsing Externally hosted open access publications with University of Galway authors (1) by Author "Elias, V."

Now showing items 1-3 of 3

    • Optimal renormalization-group improvement of the perturbative series for thee+e−annihilation cross section 

      Ahmady, M. R.; Chishtie, F. A.; Elias, V.; Fariborz, A. H.; McKeon, D. G. C.; Sherry, T. N.; Squires, A.; Steele, T. G. (American Physical Society (APS), 2003-02-26)
      Using renormalization-group methods, we derive differential equations for the all-orders summation of logarithmic corrections to the QCD series for R(s)=sigma(e(+)e(-)-->hadrons)/sigma(e(+)e(-)-->mu(+)mu(-)), as ...

    • Padé/renormalization-group improvement of inclusive semileptonic b decay rates 

      Ahmady, M.R.; Christie, F.A.; Elias, V.; Fariborz, A.H.; McKeon, D.G.C.; Sherry, T.N.; Steele, T.G. (Elsevier BV, 2003-02-01)
      Renormalization Group (RG) and optimized Pade-approximant methods are used to estimate the three-loop perturbative contributions to the inclusive semileptonic b --> u and b --> c decay rates. It is noted that the ...

    • Renormalization-mass scale dependence in qcd contributions to semileptonic b → u decay 

      Ahmady, M.R.; Chishtie, F.A.; Elias, V.; Fariborz, A.H.; McKeon, D.G.C.; Sherry, T.N.; Steele, T.G. (Elsevier BV, 2003-02-01)
      QCD contributions to the b --> ul(-)v(l) decay rate, which are known to two-loop order in the MS scheme, exhibit sufficient dependence on the renormalization mass mu to compromise phenomenological predictions for inclusive ...