A. Kozachuk

activity

20152024

most citedEvidence for exotic hadron contributions to

Λ_{b}^{0} \to J / ψ p π^{-}

decays

154 citations · 1.8k across the 78 of their papers we have counts for

collaborators

Showing 2016Show all

14 papers · 1 filter

hep-ph2016

Form factors and differential distributions in rare radiative leptonic B-decays

Anastasiia Kozachuk, Nikolai Nikitin

We study rare radiative leptonic decays $B_{(s)} \to e^{+} e^{-} γ$ and $B_{(s)} \to μ^{+} μ^{-} γ$ within relativistic quark model. In addition to previous analysis we give the estimations of t…

hep-ph2016

Weak annihilation rare radiative B-decays

Anastasiia Kozachuk, Nikolai Nikitin

We give predictions for the branching ratios of several rare radiative B-decays which proceed only through weak annihilation mechanism. In addition to previous analysis we estimate…

hep-ex2016★ 66 cited

Measurement of the phase difference between short- and long-distance amplitudes in the $B^{+} \to K^{+} μ^{+} μ^{-}$ decay

LHCb collaboration, R. Aaij, B. Adeva +764

A measurement of the phase difference between the short- and long-distance contributions to the $B^{+} \to K^{+} μ^{+} μ^{-}$ decay is performed by analysing the dimuon mass distribut…

hep-ex2016★ 7 cited

Measurement of the ratio of branching fractions and difference in $C P$ asymmetries of the decays $B^{+} \to J / ψ π^{+}$ and $B^{+} \to J / ψ K^{+}$

LHCb collaboration, R. Aaij, B. Adeva +764

The ratio of branching fractions and the difference in $C P$ asymmetries of the decays $B^{+} \to J / ψ π^{+}$ and $B^{+} \to J / ψ K^{+}$ are measured using a data sample of $pp$ collisions collec…

hep-ex2016★ 15 cited

Search for $C P$ violation in the phase space of $D^{0} \to π^{+} π^{-} π^{+} π^{-}$ decays

LHCb collaboration, R. Aaij, B. Adeva +769

A search for time-integrated $C P$ violation in the Cabibbo-suppressed decay $\mbox{$D^0\rightarrowπ^+π^-π^+π^-$}$ is performed using an unbinned, model-independent technique known…

hep-ex2016★ 12 cited

Evidence for the two-body charmless baryonic decay $B^{+} \to p Λ ˉ$

LHCb collaboration, R. Aaij, B. Adeva +767

A search for the rare two-body charmless baryonic decay $B^{+} \to p Λ ˉ$ is performed with $pp$ collision data, corresponding to an integrated luminosity of $3\,\mbox{fb}^{-1}$, c…

hep-ex2016

Measurements of charm mixing and $C P$ violation using $D^{0} \to K^{\pm} π^{\mp}$ decays

LHCb collaboration, R. Aaij, B. Adeva +766

Measurements of charm mixing and $C P$ violation parameters from the decay-time-dependent ratio of $D^{0} \to K^{+} π^{-}$ to $D^{0} \to K^{-} π^{+}$ decay rates and the charge-conjugate…

hep-ph2016★ 5 cited

Rare radiative leptonic B-decays

Anastasiia Kozachuk, Dmitri Melikhov, Nikolai Nikitin

We obtain predictions for $B_{(s)} \to e^{+} e^{-} γ$ and $B_{(s)} \to μ^{+} μ^{-} γ$ decays. All the contributions containing long-distance QCD effects are calculated in the framework of relati…

hep-ex2016★ 117 cited

Measurement of matter-antimatter differences in beauty baryon decays

LHCb collaboration, R. Aaij, B. Adeva +762

Differences in the behaviour of matter and antimatter have been observed in $K$ and $B$ meson decays, but not yet in any baryon decay. Such differences are associated with the non-…

hep-ex2016★ 92 cited

Search for structure in the $B_{s}^{0} π^{\pm}$ invariant mass spectrum

LHCb collaboration, R. Aaij, B. Adeva +761

The $B_{s}^{0} π^{\pm}$ invariant mass distribution is investigated in order to search for possible exotic meson states. The analysis is based on a data sample recorded with the LHCb dete…

hep-ex2016★ 31 cited

Observation of $η_{c} (2 S) \to p p ˉ$ and search for $X (3872) \to p p ˉ$ decays

LHCb collaboration, R. Aaij, B. Adeva +750

The first observation of the decay $η_{c} (2 S) \to p p ˉ$ is reported using proton-proton collision data corresponding to an integrated luminosity of $3.0 f b^{- 1}$ recorded…

hep-ex2016★ 30 cited

Study of $B_{c}^{+}$ decays to the $K^{+} K^{-} π^{+}$ final state and evidence for the decay $B_{c}^{+} \to χ_{c 0} π^{+}$

LHCb collaboration, R. Aaij, B. Adeva +761

A study of $B_{c}^{+} \to K^{+} K^{-} π^{+}$ decays is performed for the first time using data corresponding to an integrated luminosity of 3.0 $fb^{- 1}$ collected by the LHCb experime…

hep-ex2016★ 154 cited

Evidence for exotic hadron contributions to $Λ_{b}^{0} \to J / ψ p π^{-}$ decays

LHCb collaboration, R. Aaij, C. Abellán Beteta +739

A full amplitude analysis of $Λ_{b}^{0} \to J / ψ p π^{-}$ decays is performed with a data sample acquired with the LHCb detector from 7 and 8 TeV $pp$ collisions, corresponding to an integ…

hep-ex2016★ 40 cited

Measurement of the $C P$ asymmetry in $B_{s}^{0} - B_{s}^{0}$ mixing

LHCb collaboration, R. Aaij, B. Adeva +735

The $C P$ asymmetry in the mixing of $B_{s}^{0}$ and $B_{s}^{0}$ mesons is measured in proton-proton collision data corresponding to an integrated luminosity of 3.0 fb $^{- 1}$ ,…

Form factors and differential distributions in rare radiative leptonic B-decays

Weak annihilation rare radiative B-decays

Measurement of the phase difference between short- and long-distance amplitudes in the B+→K+μ+μ− decay

Measurement of the ratio of branching fractions and difference in CP asymmetries of the decays B+→J/ψπ+ and B+→J/ψK+

Search for CP violation in the phase space of D0→π+π−π+π− decays

Evidence for the two-body charmless baryonic decay B+→pΛˉ

Measurements of charm mixing and CP violation using D0→K±π∓ decays