F. Abudinén

activity

20102025

most citedThe Belle II Physics Book

570 citations · 1.6k across the 41 of their papers we have counts for

collaborators

44 papers

hep-ex2025★ 1 cited

Improved measurement of $η / η^{'}$ mixing in $B_{(s)}^{0} \to J / ψ η^{(')}$ decays

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1182

Branching fraction ratios between the decays $B_{(s)}^{0} \to J / ψ η^{(')}$ are measured using proton-proton collision data collected by the LHCb experiment at centre-of…

hep-ex2025★ 6 cited

Observation of the doubly-charmed-baryon decay $Ξ_{cc}^{++} \to Ξ_{c}^{0} π^{+} π^{+}$

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1134

A search for the doubly-charmed-baryon decay $Ξ_{cc}^{++} \to Ξ_{c}^{0} π^{+} π^{+}$ is performed using proton-proton collision data collected by the LHCb experiment at a c…

hep-ex2024★ 5 cited

Amplitude analysis of $B^{+} \to ψ (2 S) K^{+} π^{+} π^{-}$ decays

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1096

The first full amplitude analysis of $B^{+} \to ψ (2 S) K^{+} π^{+} π^{-}$ decays is performed using proton-proton collision data corresponding to an integrated luminosity of $9\,\text{fb}^{…

hep-ex2024★ 13 cited

Probing the nature of the $χ_{c 1} (3872)$ state using radiative decays

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1097

The radiative decays $χ_{c 1} (3872) \to ψ (2 S) γ$ and $χ_{c 1} (3872) \to J / ψ γ$ are used to probe the~nature of the~ $χ_{c 1} (3872)$ state using proton-proton collision data…

hep-ex2024

Comprehensive analysis of local and nonlocal amplitudes in the $B^{0} \to K^{* 0} μ^{+} μ^{-}$ decay

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1073

A comprehensive study of the local and nonlocal amplitudes contributing to the decay $B^{0} \to K^{* 0} (\to K^{+} π^{-}) μ^{+} μ^{-}$ is performed by analysing the phase-space distributi…

hep-ex2024★ 1 cited

Measurement of the Branching Fraction of $B^{0} \to J / ψ π^{0}$ Decays

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1071

The ratio of branching fractions between $B^{0} \to J / ψ π^{0}$ and $B^{+} \to J / ψ K^{*+}$ decays is measured with proton-proton collision data collected by the LHCb e…

hep-ex2023★ 9 cited

Fraction of $χ_{c}$ decays in prompt $J / ψ$ production measured in pPb collisions at $s_{N N} = 8.16$ TeV

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1081

The fraction of $χ_{c 1}$ and $χ_{c 2}$ decays in the prompt $J / ψ$ yield, $F_{χc} = σ_{χ_{c} \to J / ψ} / σ_{J / ψ}$ , is measured by the LHCb detector in pPb collisions at $s_{N N} = 8.16$ …

hep-ex2023★ 5 cited

Observation of Cabibbo-Suppressed Two-Body Hadronic Decays and Precision Mass Measurement of the $Ω_{c}^{0}$ Baryon

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1082

The first observation of the singly Cabibbo-suppressed $Ω_{c}^{0} \to Ω^{-} K^{+}$ and $Ω_{c}^{0} \to Ξ^{-} π^{+}$ decays is reported, using proton-proton collision data at a center-of-m…

hep-ex2023★ 5 cited

Observation of the decays $B_{(s)}^{0} \to D_{s 1} (2536)^{\mp} K^{\pm}$

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1088

This paper reports the observation of the decays $B_{(s)}^{0} \to D_{s 1} (2536)^{\mp} K^{\pm}$ using proton-proton collision data collected by the LHCb experiment, corresponding to an…

hep-ex2023★ 20 cited

Observation of new baryons in the $Ξ_{b}^{-} π^{+} π^{-}$ and $Ξ_{b}^{0} π^{+} π^{-}$ systems

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1052

The first observation and study of two new baryonic structures in the final state $Ξ_{b}^{0} π^{+} π^{-}$ and the confirmation of the $Ξ_{b} (6100)^{-}$ state in the $Ξ_{b}^{-} π^{+} π^{-}$ decay mode are…

hep-ex2023

Search for lepton-flavor-violating $τ^{-} \to ℓ^{-} ϕ$ decays in 2019-2021 Belle II data

Belle II Collaboration, F. Abudinén, I. Adachi +575

We report a search for lepton-flavor-violating decays $τ^{-} \to ℓ^{-} ϕ$ ( $ℓ^{-} = e^{-}, μ^{-}$ ) at the Belle II experiment, using a sample of electron-positron data produced at the Su…

hep-ex2023★ 4 cited

Measurement of the mass difference and relative production rate of the $Ω_{b}^{-}$ and $Ξ_{b}^{-}$ baryons

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1050

The mass difference between the $Ω_{b}^{-}$ and $Ξ_{b}^{-}$ baryons is measured using proton-proton collision data collected by the LHCb experiment, corresponding to an integrated luminosi…

hep-ex2023★ 3 cited

Observation of the $B^{+} \to J / ψ η^{'} K^{+}$ decay

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1049

The $B^{+} \to J / ψ η^{'} K^{+}$ decay is observed for the first time using proton-proton collision data collected by the LHCb experiment at centre-of-mass energies of 7, 8,…

hep-ex2023★ 4 cited

Search for $CP$ violation in $D_{(s)}^{+} \to K^{-} K^{+} K^{+}$ decays

LHCb collaboration

A search for direct $CP$ violation in the Cabibbo-suppressed decay $D_{s}^{+} \to K^{-} K^{+} K^{+}$ and in the doubly Cabibbo-suppressed decay $D^{+}\rightarrow K^{-}K^{…

hep-ex2023★ 10 cited

Measurement of the $B^{0}$ lifetime and flavor-oscillation frequency using hadronic decays reconstructed in 2019-2021 Belle II data

Belle II Collaboration, F. Abudinén, I. Adachi +393

We measure the $B^{0}$ lifetime and flavor-oscillation frequency using $B^{0} \to D^{(*) -} π^{+}$ decays collected by the Belle II experiment in asymmetric-energy $e^{+} e^{-}$ collisions produ…

hep-ex2023★ 10 cited

Measurement of decay-time-dependent $CP$ violation in $B^{0} \to J / ψ K_{S}^{0}$ decays using 2019-2021 Belle II data

Belle II Collaboration, I. Adachi, L. Aggarwal +392

We report a measurement of the mixing-induced and direct $CP$ violation parameters $S_{CP}$ and $A_{CP}$ from $B^{0} \to J / ψ K_{S}^{0}$ decays reconstructed by the…

hep-ex2023★ 2 cited

Observation of the $B_{s}^{0} \to χ_{c 1} (3872) π^{+} π^{-}$ decay

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1045

The first observation of the $B_{s}^{0} \to (χ_{c 1} (3872) \to J / ψ π^{+} π^{-}) π^{+} π^{-}$ decay is reported using proton-proton collision data, corresponding to int…

hep-ex2023★ 32 cited

Observation of new $Ω_{c}^{0}$ states decaying to the $Ξ_{c}^{+} K^{-}$ final state

LHCb collaboration

Two new excited states, $Ω_{c} (3185)^{0}$ and $Ω_{c} (3327)^{0}$ , are observed in the $Ξ_{c}^{+} K^{-}$ invariant-mass spectrum using proton-proton collision data collected by the LHCb experim…

hep-ex2023★ 72 cited

Measurement of the ratios of branching fractions $R (D^{*})$ and $R (D^{0})$

LHCb Collaboration

The ratios of branching fractions $R (D^{*}) \equiv B (B ˉ \to D^{*} τ^{-} ν ˉ_{τ}) / B (B ˉ \to D^{*} μ^{-} ν ˉ_{μ})$ and $\mathcal{R}(D^{0})\equiv\mathca…

hep-ex2023★ 5 cited

$Λ_{c}^{+}$ polarimetry using the dominant hadronic mode

LHCb collaboration

The polarimeter vector field for multibody decays of a spin-half baryon is introduced as a generalisation of the baryon asymmetry parameters. Using a recent amplitude analysis of t…

hep-ex2023★ 11 cited

Evidence of a $J / ψ K_{S}^{0}$ structure in $B^{0} \to J / ψ ϕ K_{S}^{0}$ decays

LHCb collaboration

An amplitude analysis of $B^{0} \to J / ψ ϕ K_{S}^{0}$ decays is performed using proton-proton collision data corresponding to an integrated luminosity of 9 $fb^{- 1}$ , collected with t…

hep-ex2022★ 12 cited

Search for rare decays of $D^{0}$ mesons into two muons

LHCb collaboration

A search for the very rare $D^{0} \to μ^{+} μ^{-}$ decay is performed using data collected by the LHCb experiment in proton-proton collisions at $s = 7$ , 8 and $13 TeV$ , corre…

hep-ex2022★ 112 cited

Measurement of lepton universality parameters in $B^{+} \to K^{+} ℓ^{+} ℓ^{-}$ and $B^{0} \to K^{* 0} ℓ^{+} ℓ^{-}$ decays

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1047

A simultaneous analysis of the $B^{+} \to K^{+} ℓ^{+} ℓ^{-}$ and $B^{0} \to K^{* 0} ℓ^{+} ℓ^{-}$ decays is performed to test muon-electron universality in two ranges of the square of the di…

hep-ex2022★ 126 cited

Test of lepton universality in $b \to s ℓ^{+} ℓ^{-}$ decays

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1047

The first simultaneous test of muon-electron universality using $B^{+} \to K^{+} ℓ^{+} ℓ^{-}$ and $B^{0} \to K^{* 0} ℓ^{+} ℓ^{-}$ decays is performed, in two r…

Improved measurement of η/η′ mixing in B(s)0​→J/ψη(′) decays

Observation of the doubly-charmed-baryon decay Ξcc++​→Ξc0​π+π+

Amplitude analysis of B+→ψ(2S)K+π+π− decays

Probing the nature of the χc1​(3872) state using radiative decays

Comprehensive analysis of local and nonlocal amplitudes in the B0→K∗0μ+μ− decay

Measurement of the Branching Fraction of B0→J/ψπ0 Decays

Fraction of χc​ decays in prompt J/ψ production measured in pPb collisions at sNN​​=8.16 TeV

Observation of Cabibbo-Suppressed Two-Body Hadronic Decays and Precision Mass Measurement of the Ωc0​ Baryon

Observation of the decays B(s)0​→Ds1​(2536)∓K±

Observation of new baryons in the Ξb−​π+π− and Ξb0​π+π− systems

Search for lepton-flavor-violating τ−→ℓ−ϕ decays in 2019-2021 Belle II data

Measurement of the mass difference and relative production rate of the Ωb−​ and Ξb−​ baryons

Observation of the B+→J/ψη′K+ decay

Search for CP violation in D(s)+​→K−K+K+ decays

Measurement of the B0 lifetime and flavor-oscillation frequency using hadronic decays reconstructed in 2019-2021 Belle II data

Measurement of decay-time-dependent CP violation in B0→J/ψKS0​ decays using 2019-2021 Belle II data

Observation of the Bs0​→χc1​(3872)π+π− decay

Observation of new Ωc0​ states decaying to the Ξc+​K− final state

Measurement of the ratios of branching fractions R(D∗) and R(D0)

Λc+​ polarimetry using the dominant hadronic mode

Evidence of a J/ψKS0​ structure in B0→J/ψϕKS0​ decays

Search for rare decays of D0 mesons into two muons

Measurement of lepton universality parameters in B+→K+ℓ+ℓ− and B0→K∗0ℓ+ℓ− decays

Test of lepton universality in b→sℓ+ℓ− decays

Improved measurement of $η / η^{'}$ mixing in $B_{(s)}^{0} \to J / ψ η^{(')}$ decays

Observation of the doubly-charmed-baryon decay $Ξ_{cc}^{++} \to Ξ_{c}^{0} π^{+} π^{+}$

Amplitude analysis of $B^{+} \to ψ (2 S) K^{+} π^{+} π^{-}$ decays

Probing the nature of the $χ_{c 1} (3872)$ state using radiative decays

Comprehensive analysis of local and nonlocal amplitudes in the $B^{0} \to K^{* 0} μ^{+} μ^{-}$ decay

Measurement of the Branching Fraction of $B^{0} \to J / ψ π^{0}$ Decays

Fraction of $χ_{c}$ decays in prompt $J / ψ$ production measured in pPb collisions at $s_{N N} = 8.16$ TeV

Observation of Cabibbo-Suppressed Two-Body Hadronic Decays and Precision Mass Measurement of the $Ω_{c}^{0}$ Baryon

Observation of the decays $B_{(s)}^{0} \to D_{s 1} (2536)^{\mp} K^{\pm}$

Observation of new baryons in the $Ξ_{b}^{-} π^{+} π^{-}$ and $Ξ_{b}^{0} π^{+} π^{-}$ systems

Search for lepton-flavor-violating $τ^{-} \to ℓ^{-} ϕ$ decays in 2019-2021 Belle II data

Measurement of the mass difference and relative production rate of the $Ω_{b}^{-}$ and $Ξ_{b}^{-}$ baryons

Observation of the $B^{+} \to J / ψ η^{'} K^{+}$ decay

Search for $CP$ violation in $D_{(s)}^{+} \to K^{-} K^{+} K^{+}$ decays

Measurement of the $B^{0}$ lifetime and flavor-oscillation frequency using hadronic decays reconstructed in 2019-2021 Belle II data

Measurement of decay-time-dependent $CP$ violation in $B^{0} \to J / ψ K_{S}^{0}$ decays using 2019-2021 Belle II data

Observation of the $B_{s}^{0} \to χ_{c 1} (3872) π^{+} π^{-}$ decay

Observation of new $Ω_{c}^{0}$ states decaying to the $Ξ_{c}^{+} K^{-}$ final state

Measurement of the ratios of branching fractions $R (D^{*})$ and $R (D^{0})$

$Λ_{c}^{+}$ polarimetry using the dominant hadronic mode

Evidence of a $J / ψ K_{S}^{0}$ structure in $B^{0} \to J / ψ ϕ K_{S}^{0}$ decays

Search for rare decays of $D^{0}$ mesons into two muons

Measurement of lepton universality parameters in $B^{+} \to K^{+} ℓ^{+} ℓ^{-}$ and $B^{0} \to K^{* 0} ℓ^{+} ℓ^{-}$ decays

Test of lepton universality in $b \to s ℓ^{+} ℓ^{-}$ decays