22 citations · 38 across the 8 of their papers we have counts for
8 papers
Gluonic Penguins in from QCD Light-Cone Sum Rules
Alexander Khodjamirian, Thomas Mannel, Piotr Urban
The hadronic matrix element of the chromomagnetic dipole operator (gluonic penguin) is calculated using the QCD light-cone sum rule approach. The resulting sum r…
On the hierarchy of neutrino masses
M. Jezabek, P. Urban
We present a model of neutrino masses combining the seesaw mechanism and strong Dirac mass hierarchy and at the same time exhibiting a significantly reduced hierarchy at the level…
A hidden hierarchy of neutrino masses
M. Jezabek, P. Urban
The Dirac masses of neutrinos can exhibit a strong hierarchy even if the Majorana masses of the right-handed neutrinos are degenerate and the hierarchy of the mass scales governing…
Determination of V_ub from semileptonic B decays
M. Jezabek, T. Mannel, B. Postler +1
The hadronic mass distribution in semileptonic B-meson decays can be used for extracting the charmless part and thus determining the |V_ub/V_cb| ratio. We take into account first-o…
A study of semileptonic B decays
P. Urban
Perturbative and nonperturbative QCD corrections to semileptonic B decay rates are calculated and given in analytical and numerical forms. We present the analytic expression for th…
One-loop QCD corrected distribution in B to X+electron decays
M. Jezabek, P. Urban
We give an analytic formula for the double distribution of hadronic invariant mass and charged lepton energy to one-loop order of the perturbative QCD. Although infrared singular,…
Polarization in semileptonic B decays
M. Jezabek, P. Urban
The paper gives the polarization of the tau lepton in the semileptonic B decays with respect to the direction of the virtual W boson. The result is given including the nonperturbat…
Polarization of tau leptons in semileptonic B decays
M. Jezabek, P. Urban
Analytic formulae for the one-loop order QCD corrections to the differential width of the semileptonic b decay are given with the tau polarization taken into account. Thence the po…