A. Bondar

activity

19992022

most citedObservation of a New Narrow Charmonium State in Exclusive B+-->K+ pi+pi- J/psi Decays

2k citations · 30.3k across the 432 of their papers we have counts for

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hep-ex2022★ 3 cited

Determination of $∣ V_{u b} ∣$ from untagged $B^{0} \to π^{-} ℓ^{+} ν_{ℓ}$ decays using 2019-2021 Belle II data

Belle II Collaboration, K. Adamczyk, L. Aggarwal +588

We present an analysis of the charmless semileptonic decay $B^{0} \to π^{-} ℓ^{+} ν_{ℓ}$ , where $ℓ = e, μ$ , from 198.0 million pairs of $B B ˉ$ mesons recorded by the Belle II…

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★ 33 cited

Observation of the doubly charmed baryon decay $Ξ_{cc}^{++} \to Ξ_{c}^{^{'} +} π^{+}$

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

The $Ξ_{cc}^{++} \to Ξ_{c}^{^{'} +} π^{+}$ decay is observed using proton-proton collisions collected by the LHCb experiment at a centre-of-mass energy of $13\mathrm{\,Te\kern -0.1e…

hep-ex2021★ 14 cited

Study of the $B_{c}^{+}$ decays into charmonia and three light hadrons

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +996

Using proton-proton collision data, corresponding to an integrated luminosity of $9 f b^{- 1}$ collected with the LHCb detector, seven decay modes of the $B_{c}^{+}$ meson into a $J / ψ$ or…

hep-ex2021★ 7 cited

Searches for rare $B_{s}^{0}$ and $B^{0}$ decays into four muons

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +997

Searches for rare $B_{s}^{0}$ and $B^{0}$ decays into four muons are performed using proton-proton collision data recorded by the LHCb experiment, corresponding to an integrated luminosi…

hep-ex2021★ 19 cited

Measurement of the photon polarization in $Λ_{b} \to Λ γ$ decays

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +994

The photon polarization in $b \to s γ$ transitions is measured for the first time in radiative b-baryon decays exploiting the unique spin structure of $Λ_{b} \to Λ γ$ decays. A data s…

hep-ex2021★ 32 cited

Observation of two new excited $Ξ_{b}^{0}$ states decaying to $Λ_{b}^{0} K^{-} π^{+}$

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

Two narrow resonant states are observed in the $Λ_{b}^{0} K^{-} π^{+}$ mass spectrum using a data sample of proton-proton collisions at a center-of-mass energy of 13 $TeV$ , collect…

hep-ex2021

Measurements of branching fractions and CP-violating charge asymmetries in multibody charmless $B$ decays reconstructed in 2019-2020 Belle II data

Belle II collaboration, F. Abudinén, I. Adachi +549

We report on measurements of branching fractions ( $B$ ) and CP-violating charge asymmetries ( $A_{CP}$ ) of multibody charmless $B$ decays reconstructed by the…

hep-ex2021★ 29 cited

Study of $Z$ bosons produced in association with charm in the forward region

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +994

Events containing a $Z$ boson and a charm jet are studied for the first time in the forward region of proton-proton collisions. The data sample used corresponds to an integrated lu…

hep-ex2021★ 23 cited

Measurement of $χ_{c 1} (3872)$ production in proton-proton collisions at $s = 8$ and $13$ TeV

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +997

The production cross-section of the $χ_{c 1} (3872)$ state relative to the $ψ (2 S)$ meson is measured using proton-proton collision data collected with the LHCb experiment at centre-o…

hep-ex2021★ 10 cited

Observation of the suppressed $Λ_{b}^{0} \to D p K^{-}$ decay with $D \to K^{+} π^{-}$ and measurement of its $C P$ asymmetry

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +997

A study of $Λ_{b}^{0}$ baryon decays to the $D p K^{-}$ final state is presented based on a proton-proton collision data sample corresponding to an integrated luminosity of 9 fb $^{- 1}$ col…

hep-ex2021★ 329 cited

Study of the doubly charmed tetraquark $T_{cc}^{+}$

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +994

An exotic narrow state in the $D^{0} D^{0} π^{+}$ mass spectrum just below the $D^{*+} D^{0}$ mass threshold is studied using a data set corresponding to an integrated luminosity of 9 fb$^{-1…

hep-ex2021★ 5 cited

Updated search for $B_{c}^{+}$ decays to two charm mesons

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

A data set corresponding to an integrated luminosity of $9 fb^{- 1}$ of proton-proton collisions collected by the LHCb experiment has been analysed to search for $B_c^+ \to D…

hep-ex2021★ 15 cited

Measurement of $J / ψ$ production cross-sections in $pp$ collisions at $s = 5$ TeV

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +990

The production cross-sections of $J / ψ$ mesons in proton-proton collisions at a centre-of-mass energy of $s = 5$ TeV are measured using a data sample corresponding to an integr…

hep-ex2021★ 115 cited

Measurement of the $B_{s}^{0} \to μ^{+} μ^{-}$ decay properties and search for the $B^{0} \to μ^{+} μ^{-}$ and $B_{s}^{0} \to μ^{+} μ^{-} γ$ decays

LHCb collaboration, R. Aaij, C. Abellán Beteta +953

An improved measurement of the decay $B_{s}^{0} \to μ^{+} μ^{-}$ and searches for the decays $B^{0} \to μ^{+} μ^{-}$ and $B_{s}^{0} \to μ^{+} μ^{-} γ$ are performed at the LHCb experiment using data collected in…

hep-ex2021★ 11 cited

Search for the radiative $Ξ_{b}^{-} \to Ξ^{-} γ$ decay

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +986

The first search for the rare radiative decay $Ξ_{b}^{-} \to Ξ^{-} γ$ is performed using data collected by the LHCb experiment in proton-proton collisions at a center-of-mass energy of 1…

hep-ex2021★ 112 cited

Evidence for a new structure in the $J / ψ p$ and $J / ψ p ˉ$ systems in $B_{s}^{0} \to J / ψ p p ˉ$ decays

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +987

An amplitude analysis of flavour-untagged $B_{s}^{0} \to J / ψ p p ˉ$ decays is performed using a sample of $797 \pm 31$ decays reconstructed with the LHCb detector. The data, collected…

hep-ex2021★ 4 cited

Angular analysis of the rare decay $B_{s}^{0} \to ϕ μ^{+} μ^{-}$

LHCb Collaboration, R. Aaij, A. S. W. Abdelmotteleb +992

An angular analysis of the rare decay $B_{s}^{0} \to ϕ μ^{+} μ^{-}$ is presented, using proton-proton collision data collected by the LHCb experiment at centre-of-mass energies of $7$ ,…

hep-ex2021★ 19 cited

Observation of a $Λ_{b}^{0} - Λ_{b}^{0}$ production asymmetry in proton-proton collisions at $s = 7 and 8 TeV$

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +973

This article presents differential measurements of the asymmetry between $Λ_{b}^{0}$ and $Λ_{b}^{0}$ baryon production rates in proton-proton collisions at centre-of-mass energies…

hep-ex2021★ 44 cited

Observation of excited $Ω_{c}^{0}$ baryons in $Ω_{b}^{-} \to Ξ_{c}^{+} K^{-} π^{-}$ decays

LHCb collaboration, R. Aaij, C. Abellán Beteta +959

The first observation of the $Ω_{b}^{-} \to Ξ_{c}^{+} K^{-} π^{-}$ decay is reported using $pp$ collision data at centre-of-mass energies of 7, 8 and 13\, $TeV$ collected by the LHCb e…

hep-ex2021★ 3 cited

Search for the Decay $B_{s}^{0} \to η^{'} η$

Belle Collaboration, N. K. Nisar, V. Savinov +197

We report the results of the first search for the decay $B_{s}^{0} \to η^{'} η$ using $121.4 fb^{- 1}$ of data collected at the $Υ (5 S)$ resonance with the Belle dete…

hep-ex2021★ 53 cited

Observation of the mass difference between neutral charm-meson eigenstates

LHCb collaboration, R. Aaij, C. Abellán Beteta +958

A measurement of mixing and $C P$ violation in neutral charm mesons is performed using data reconstructed in proton-proton collisions collected by the LHCb experiment from 2016 to…

hep-ex2021

Measurement of the time-integrated mixing probability $χ_{d}$ with a semileptonic double-tagging strategy and $34.6 fb^{- 1}$ of Belle II collision data

Belle II Collaboration, F. Abudinén, I. Adachi +550

We present the first measurement of the time-integrated mixing probability $χ_{d}$ using Belle II data collected at a center-of-mass (CM) energy of 10.58 GeV, corresponding to the ma…

hep-ex2021

Measurement of the branching fractions of $B \to η^{'} K$ decays using 2019/2020 Belle II data

Belle II Collaboration, F. Abudinén, I. Adachi +545

This note describes the rediscovery of $B \to η^{'} K$ decays in Belle II data, both in the charged and neutral final state: $B_{0} \to η^{'} K_{S}$ and $B^{\pm} \to η^{'} K^{\pm}$ . The $η^{'}$ is searched…

Determination of ∣Vub​∣ from untagged B0→π−ℓ+νℓ​ decays using 2019-2021 Belle II data

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

Observation of the doubly charmed baryon decay Ξcc++​→Ξc′+​π+

Study of the Bc+​ decays into charmonia and three light hadrons

Searches for rare Bs0​ and B0 decays into four muons

Measurement of the photon polarization in Λb​→Λγ decays

Observation of two new excited Ξb0​ states decaying to Λb0​K−π+

Measurements of branching fractions and CP-violating charge asymmetries in multibody charmless B decays reconstructed in 2019-2020 Belle II data

Study of Z bosons produced in association with charm in the forward region

Measurement of χc1​(3872) production in proton-proton collisions at s​=8 and 13 TeV

Observation of the suppressed Λb0​→DpK− decay with D→K+π− and measurement of its CP asymmetry

Study of the doubly charmed tetraquark Tcc+​

Updated search for Bc+​ decays to two charm mesons

Measurement of J/ψ production cross-sections in pp collisions at s​=5 TeV

Measurement of the Bs0​→μ+μ− decay properties and search for the B0→μ+μ− and Bs0​→μ+μ−γ decays

Search for the radiative Ξb−​→Ξ−γ decay

Evidence for a new structure in the J/ψp and J/ψpˉ​ systems in Bs0​→J/ψppˉ​ decays

Angular analysis of the rare decay Bs0​→ϕμ+μ−

Observation of a Λb0​−Λb0​ production asymmetry in proton-proton collisions at s​=7 and 8TeV

Observation of excited Ωc0​ baryons in Ωb−​→Ξc+​K−π− decays

Search for the Decay Bs0​→η′η

Observation of the mass difference between neutral charm-meson eigenstates

Measurement of the time-integrated mixing probability χd​ with a semileptonic double-tagging strategy and 34.6fb−1 of Belle II collision data

Measurement of the branching fractions of B→η′K decays using 2019/2020 Belle II data

Determination of $∣ V_{u b} ∣$ from untagged $B^{0} \to π^{-} ℓ^{+} ν_{ℓ}$ decays using 2019-2021 Belle II data

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

Observation of the doubly charmed baryon decay $Ξ_{cc}^{++} \to Ξ_{c}^{^{'} +} π^{+}$

Study of the $B_{c}^{+}$ decays into charmonia and three light hadrons

Searches for rare $B_{s}^{0}$ and $B^{0}$ decays into four muons

Measurement of the photon polarization in $Λ_{b} \to Λ γ$ decays

Observation of two new excited $Ξ_{b}^{0}$ states decaying to $Λ_{b}^{0} K^{-} π^{+}$

Measurements of branching fractions and CP-violating charge asymmetries in multibody charmless $B$ decays reconstructed in 2019-2020 Belle II data

Study of $Z$ bosons produced in association with charm in the forward region

Measurement of $χ_{c 1} (3872)$ production in proton-proton collisions at $s = 8$ and $13$ TeV

Observation of the suppressed $Λ_{b}^{0} \to D p K^{-}$ decay with $D \to K^{+} π^{-}$ and measurement of its $C P$ asymmetry

Study of the doubly charmed tetraquark $T_{cc}^{+}$

Updated search for $B_{c}^{+}$ decays to two charm mesons

Measurement of $J / ψ$ production cross-sections in $pp$ collisions at $s = 5$ TeV

Measurement of the $B_{s}^{0} \to μ^{+} μ^{-}$ decay properties and search for the $B^{0} \to μ^{+} μ^{-}$ and $B_{s}^{0} \to μ^{+} μ^{-} γ$ decays

Search for the radiative $Ξ_{b}^{-} \to Ξ^{-} γ$ decay

Evidence for a new structure in the $J / ψ p$ and $J / ψ p ˉ$ systems in $B_{s}^{0} \to J / ψ p p ˉ$ decays

Angular analysis of the rare decay $B_{s}^{0} \to ϕ μ^{+} μ^{-}$

Observation of a $Λ_{b}^{0} - Λ_{b}^{0}$ production asymmetry in proton-proton collisions at $s = 7 and 8 TeV$

Observation of excited $Ω_{c}^{0}$ baryons in $Ω_{b}^{-} \to Ξ_{c}^{+} K^{-} π^{-}$ decays

Search for the Decay $B_{s}^{0} \to η^{'} η$

Measurement of the time-integrated mixing probability $χ_{d}$ with a semileptonic double-tagging strategy and $34.6 fb^{- 1}$ of Belle II collision data

Measurement of the branching fractions of $B \to η^{'} K$ decays using 2019/2020 Belle II data