141 citations · 350 across the 6 of their papers we have counts for
6 papers
Heavy-light diquark masses from QCD sum rules and constituent diquark models of tetraquarks
R. T. Kleiv, T. G. Steele, Ailin Zhang +1
Diquarks with , containing a heavy (charm or bottom) quark and a light quark are investigated using QCD Laplace sum rules. Masses are determined using appr…
Two-loop QCD corrections to semileptonic b-quark decays near maximum recoil
A. Pak, I. Blokland, A. Czarnecki
Two-gluon radiative corrections to the decay width have been computed analytically as an expansion in terms of \frac{m_c}{m_b} << 1 in the kinematical limit of zero l…
Next-to-next-to-leading order calculations for heavy-to-light decays
I. Blokland, A. Czarnecki, M. Slusarczyk +1
We present technical aspects of next-to-next-to-leading order calculations for heavy-to-light decays such as top quark decay, semileptonic b quark decay into a u quark, muon decay,…
Heavy-to-light decays with a two-loop accuracy
Ian Blokland, Andrzej Czarnecki, Maciej Slusarczyk +1
We present a determination of a new class of three-loop Feynman diagrams describing heavy-to-light transitions. We apply it to find the O(alpha_s^2) corrections to the top quark de…
Expansion of bound state energies in powers of m/M and (1-m/M)
Ian Blokland, Andrzej Czarnecki, Kirill Melnikov
Elaborating on a previous letter, we use a new approach to compute energy levels of a non-relativistic bound-state of two constituents, with masses m and M, by systematic expansion…
Pion pole contribution to hadronic light-by-light scattering and muon anomalous magnetic moment
Ian Blokland, Andrzej Czarnecki, Kirill Melnikov
We derive an analytic result for the pion pole contribution to the light-by-light scattering correction to the anomalous magnetic moment of the muon, . Using the ve…