Matthias Steinhauser

collaborators

3 papers

hep-ph2026

Next-to-next-to-leading QCD corrections to the $B^{+}$ - $B_{d}^{0}$ , $D^{+}$ - $D^{0}$ , and $D_{s}^{+}$ - $D^{0}$ lifetime ratios

Francesco Moretti, Ulrich Nierste, Pascal Reeck +1

The total decay widths of heavy mesons can be systematically calculated in terms of an expansion in the two parameters $1/ m_{Q}$ and $I^\pm_{s} (m_{Q})$ , where $Q = c, b$ denotes the heavy quar…

hep-ph2025

Complete next-to-next-to-leading order QCD corrections to the decay matrix in $B$ -meson mixing at leading power

Ulrich Nierste, Pascal Reeck, Vladyslav Shtabovenko +1

We compute next-to-next-to-leading order corrections to the decay width difference of mass eigenstates and the charge-parity (CP) asymmetry $a_{fs}$ in flavour-specific decays…

hep-ph2025

Current-current operator contribution to the decay matrix in $B$ -meson mixing at next-to-next-to-leading order of QCD

Marvin Gerlach, Ulrich Nierste, Pascal Reeck +2

We compute next-to-next-to-leading order perturbative corrections to the decay width difference of mass eigenstates and the charge-parity asymmetry $a_{fs}$ in flavour-specific…

Next-to-next-to-leading QCD corrections to the B+-Bd0​, D+-D0, and Ds+​-D0 lifetime ratios

Complete next-to-next-to-leading order QCD corrections to the decay matrix in B-meson mixing at leading power

Current-current operator contribution to the decay matrix in B-meson mixing at next-to-next-to-leading order of QCD

Next-to-next-to-leading QCD corrections to the $B^{+}$ - $B_{d}^{0}$ , $D^{+}$ - $D^{0}$ , and $D_{s}^{+}$ - $D^{0}$ lifetime ratios

Complete next-to-next-to-leading order QCD corrections to the decay matrix in $B$ -meson mixing at leading power

Current-current operator contribution to the decay matrix in $B$ -meson mixing at next-to-next-to-leading order of QCD