• Publications
  • Influence
Numerical updates of lifetimes and mixing parameters of B mesons
We update the Standard-Model predictions for several quantities related to Bs−B¯s and Bd−B¯d mixing. The mass and width differences in the Bs system read ΔMSMs=(17.3±2.6)ps−1 and
First look at the physics case of TLEP
A bstractThe discovery by the ATLAS and CMS experiments of a new boson with mass around 125 GeV and with measured properties compatible with those of a Standard-Model Higgs boson, coupled with the
Implications of LHCb measurements and future prospects
During 2011 the LHCb experiment at CERN collected 1.0 fb−1 of $\sqrt{s} = 7\mbox{~TeV}$pp collisions. Due to the large heavy quark production cross-sections, these data provide unprecedented samples
Theoretical update of B s − B s mixing
We update the theory predictions for the mass difference ∆M s , the width difference ∆Γ s and the CP asymmetry in flavour-specific decays, a s fs , for the B s −B s system. In particular we present a
Updated Bs -mixing constraints on new physics models for b→sℓ+ℓ− anomalies.
Many new physics models that explain the intriguing anomalies in the b-quark flavor sector are severely constrained by Bs mixing, for which the Standard Model prediction and experiment agreed well
Nucleon Form Factors in QCD
We calculate the electromagnetic and the axial form factors of the nucleon within the framework of light cone sum rules (LCSR) to leading order in QCD and including higher-twist corrections. In
∆Ms theory precision confronts flavour anomalies
<jats:title>A<jats:sc>bstract</jats:sc> </jats:title> <jats:p>Based on recent HQET sum rule and lattice calculations we present updated Standard Model predictions for the mass
Impact of a Higgs boson at a mass of 126 GeV on the standard model with three and four fermion generations.
We perform a comprehensive statistical analysis of the standard model (SM) with three and four generations using the latest Higgs search results from LHC and Tevatron, the electroweak precision
Lifetimes and heavy quark expansion
Kolya Uraltsev was one of the inventors of the Heavy Quark Expansion (HQE), that describes inclusive weak decays of hadrons containing heavy quarks and in particular lifetimes. Besides giving a
Dimension-six matrix elements for meson mixing and lifetimes from sum rules
A bstractThe hadronic matrix elements of dimension-six ∆F = 0, 2 operators are crucial inputs for the theory predictions of mixing observables and lifetime ratios in the B and D system. We determine
...
...