A. Kozachuk

activity

20172022

most citedUpdated branching fraction measurements of

B_{(s)}^{0} \to K_{S}^{0} h^{+} h^{' -}

decays

11 citations · 33 across the 4 of their papers we have counts for

collaborators

7 papers

hep-ex2022★ 11 cited

Measurement of the charm mixing parameter $y_{C P} - y_{C P}^{K π}$ using two-body $D^{0}$ meson decays

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +995

A measurement of the ratios of the effective decay widths of $D^{0} \to π^{-} π^{+}$ and $D^{0} \to K^{-} K^{+}$ decays over that of $D^{0} \to K^{-} π^{+}$ decays is performed with the LHCb experiment…

hep-ex2022★ 11 cited

Study of charmonium and charmonium-like contributions in $B^{+} \to J / ψ η K^{+}$ decays

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +995

A study of $B^{+} \to J / ψ η K^{+}$ decays, followed by $J / ψ \to μ^{+} μ^{-}$ and $η \to γ γ$ , is performed using a dataset collected with the LHCb detector in proton-pro…

hep-ph2020

Constraints on the anomalous $W t b$ couplings from $B$ -physics experiments

Anastasiia Kozachuk, Dmitri Melikhov

We analyze constraints on the anomalous $W t b$ couplings from $B$ -physics experiments, performing a correlated analysis and allowing all anomalous couplings to differ simultaneously…

hep-ph2018

Long-distance QCD effects in FCNC $B \to γ l^{+} l^{-}$ decays

Anastasiia Kozachuk, Dmitri Melikhov, Nikolai Nikitin

This presentation reviews the main results of our recent work [A.K., D.M., N.N., Phys. Rev. D97, 053007 (2018)] on rare radiative leptonic decays $B_{d, s} \to γ μ^{+} μ^{-}$ and $B_{d,s}\t…

hep-ph2018

Revisiting nonfactorizable charm-loop effects in exclusive FCNC $B$ -decays

Anastasiia Kozachuk, Dmitri Melikhov

We revisit the calculation of nonfactorizable corrections induced by charm-quark loops in exclusive FCNC $B$ -decays. For the sake of clarity, we make use of a field theory with sca…

hep-ph2017

Rare FCNC radiative leptonic decays $B \to γ ℓ^{+} ℓ^{-}$

Dmitri Melikhov, Anastasiia Kozachuk, Nikolai Nikitin

We present our recent results for long-distance QCD effects in the FCNC radiative leptonic decays $B \to γ ℓ^{+} ℓ^{-}$ , $ℓ = {e, μ}$ . One encounters here two distinct types of lon…

Measurement of the charm mixing parameter yCP​−yCPKπ​ using two-body D0 meson decays

Study of charmonium and charmonium-like contributions in B+→J/ψηK+ decays

Constraints on the anomalous Wtb couplings from B-physics experiments

Long-distance QCD effects in FCNC B→γl+l− decays

Revisiting nonfactorizable charm-loop effects in exclusive FCNC B-decays