R. Amalric

activity

20222026

most citedMeasurement of the ratio of branching fractions

B (B_{c}^{+} \to B_{s}^{0} π^{+}) / B (B_{c}^{+} \to J / ψ π^{+})

4 citations · 9 across the 24 of their papers we have counts for

collaborators

24 papers

hep-ex2026

Branching fraction measurements of $η$ and $η^{'} (958)$ anomalous decays

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1187

Branching fractions of $η$ and $η^{'} (958)$ anomalous decays are measured using $pp$ collision data at a center-of-mass energy of $s = 13 TeV$ collected by the LHCb exper…

hep-ex2026

Observation of several sources of $C P$ violation in $B^{+} \to K^{+} π^{+} π^{-}$ decays

LHCb collaboration, R. Aaij, M. Abdelfatah +1116

An amplitude analysis of $B^{+} \to K^{+} π^{+} π^{-}$ decays is presented in which six $C P$ -violating phenomena are judged to be of significance for the first time. This analysis is b…

hep-ex2026

Resolution of outstanding puzzles in $B^{+} \to K^{+} π^{+} π^{-}$ decays

LHCb collaboration, R. Aaij, M. Abdelfatah +1116

An amplitude analysis of $B^{+} \to K^{+} π^{+} π^{-}$ decays is presented, based on $pp$ collision data recorded with the LHCb detector in 2011--2012, corresponding to an integrated lum…

hep-ex2026

Amplitude analysis of $B^{+} \to K^{+} π^{+} π^{-}$ decays

LHCb collaboration, R. Aaij, M. Abdelfatah +1116

The branching fractions and quasi-two-body $C P$ -violating asymmetries of intermediate states obtained through an amplitude analysis of the charmless three-body decay $B^+ \!\to K…

hep-ex2026

Associated $Z$ + $J / ψ$ production as a probe of multiparton interactions in the forward region

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1187

This letter reports a study of associated $Z$ boson and prompt $J / ψ$ production in proton-proton collisions at $s = 13$ TeV with the LHCb detector in the forward rapidity regi…

hep-ex2026

First evidence of the decay $B^{+} \to π^{+} e^{+} e^{-}$

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

The first evidence for the decay $B^{+} \to π^{+} e^{+} e^{-}$ is reported using proton-proton collision data recorded by the LHCb experiment at centre-of-mass energies of 7, 8 and 13 TeV, c…

hep-ex2026

Measurement of inclusive production of charmonium states in $b$ -hadron decays via their decay into $ϕϕ$

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1176

The inclusive production of the $η_{c} (1 S)$ , $η_{c} (2 S)$ and $χ_{c}$ charmonium states in $b$ -hadron decays is studied with LHCb Run~2 data, corresponding to an integrated luminosity o…

hep-ex2026

Test of lepton flavour universality with $B^{0} \to K^{* 0} ℓ^{+} ℓ^{-}$ decays at large dilepton invariant mass

LHCb collaboration, R. Aaij, M. Abdelfatah +1115

Muon-electron universality is tested in $B^{0} \to K^{* 0} ℓ^{+} ℓ^{-}$ decays, in the dilepton-invariant-mass region above the $ψ (2 S)$ resonance. The analysis uses beauty mesons…

hep-ex2026

Search for the decays $B_{(s)}^{0} \to J / ψ γ$ at LHCb

LHCb collaboration, R. Aaij, M. Abdelfatah +1116

A search for the rare decays $B_{(s)}^{0} \to J / ψ γ$ is performed with proton-proton collision data collected by the LHCb experiment, corresponding to integrated luminosities of $3~\rm…

hep-ex2026

Measurement of CP asymmetries in $B^{0} \to D_{s}^{-} D^{+}$ and $B_{s}^{0} \to D_{s}^{+} D^{-}$ decays

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1190

Measurements of the combined CP asymmetries in $B^{0} \to D_{s}^{-} D^{+}$ and $B_{s}^{0} \to D_{s}^{+} D^{-}$ decays are ma…

hep-ex2026

Measurement of the local and nonlocal amplitudes in $B^{+} \to K^{+} μ^{+} μ^{-}$ decays

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1187

This paper presents a thorough study of the local and nonlocal amplitudes in $B^{+} \to K^{+} μ^{+} μ^{-}$ transitions through an amplitude analysis of the dimuon mass spectrum of the decay.…

hep-ex2026

Improved branching-fraction measurements of $B_{(s)}^{0} \to K_{S}^{0} h^{+} h^{^{'} -}$ decays and first observation of $B_{s}^{0} \to K_{S}^{0} K^{+} K^{-}$

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1123

This paper presents a study of the charmless three-body decays $B_{(s)}^{0} \to K_{S}^{0} h^{+} h^{' -}$ (where $h^{(')} = π, K$ ), using a sample of $pp$ collision d…

hep-ex2026

$B$ -jet fragmentation with $B^{\pm} \to J / ψ K^{\pm}$ decays in $s = 13$ TeV $pp$ collisions at LHCb

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1166

The collinear and transverse-momentum-dependent jet fragmentation function and the radial profile for $B^{\pm}$ mesons in jets are measured. The $B^{\pm}$ mesons are reconstructed…

hep-ex2026

First measurement of the decay-time-integrated $C P$ asymmetry in $B_{s}^{0} \to D_{s}^{-} π^{+}$ decays

LHCb collaboration, R. Aaij, M. Abdelfatah +1114

A measurement of the flavor-untagged decay-time-integrated $C P$ asymmetry in the flavor-specific decay $B_{s}^{0} \to D_{s}^{-} π^{+}$ , $⟨ A_{untagged}^{s} ⟩$ , is perform…

hep-ex2026

A method for luminosity determination based on real-time hit reconstruction with the LHCb silicon pixel detector

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1177

The data acquisition system of the upgraded LHCb experiment includes the fast reconstruction of all hits in the vertex locator (VELO) pixel detector at the beam-crossing rate of 40…

hep-ex2026

Search for $τ^{-} \to μ^{-} μ^{+} μ^{-}$ decays at the LHCb experiment with Run 2 data

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1188

A search for the lepton-flavour-violating decay $τ^{-} \to μ^{-} μ^{+} μ^{-}$ is carried out using data collected by the LHCb experiment between 2016 and 2018 in proton-proton collisions at t…

hep-ex2026

Observation of the decay $χ_{c 1} (3872) \to J / ψ μ^{+} μ^{-}$

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1184

The first observation of the $χ_{c 1} (3872) \to J / ψ μ^{+} μ^{-}$ decay is reported using proton-proton collision data recorded with the LHCb detector correspo…

hep-ex2026

Machine learning techniques for jet reconstruction at LHCb and application to the search for $H \to b b ˉ$ and $H \to c c ˉ$ in $s = 13$ TeV $pp$ collisions

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1194

Two machine learning techniques for jet measurements at the LHCb experiment are presented: a regression-based method for jet-energy calibration and a deep neural network algorithm…

hep-ex2026

Observation of $C P$ violation in $B^{0} \to J / ψ ρ (770)^{0}$ decays

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1172

The time-dependent $C P$ asymmetry in $B^{0} \to J / ψ ρ (770)^{0}$ decays is measured using proton-proton collision data corresponding to an integrated luminosity o…

hep-ex2025★ 1 cited

First observation of the $B_{s}^{0} \to Λ_{c}^{+} Λ_{c}^{-}$ decay and evidence for the $B^{0} \to Λ_{c}^{+} Λ_{c}^{-}$ decay

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1187

A search is presented for the two-body charmed baryonic decays $B_{(s)}^{0} \to Λ_{c}^{+} Λ_{c}^{-}$ , using a data sample collected by the LHCb experiment during…

hep-ex2025★ 1 cited

Searches for $B^{0} \to K^{+} π^{-} τ^{+} τ^{-}$ and $B_{s}^{0} \to K^{+} K^{-} τ^{+} τ^{-}$ decays

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1185

The first searches for $B^{0} \to K^{+} π^{-} τ^{+} τ^{-}$ and $B_{s}^{0} \to K^{+} K^{-} τ^{+} τ^{-}$ decays at the LHCb experiment are conducted with $pp$ collision data corresponding to an integrated luminos…

hep-ex2025★ 1 cited

Measurement of the branching fraction of the $Λ_{b}^{0} \to J / ψ Λ$ decay and isospin asymmetry of $B \to J / ψ K$ decays

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1193

This paper describes a measurement of the $Λ_{b}^{0} \to J / ψ Λ$ branching fraction using data collected with the LHCb experiment in proton-proton collisions from 2016 to 2018. The datase…

hep-ex2025★ 2 cited

First observation of $C P$ violation and measurement of polarization in $B^{+} \to ρ (770)^{0} K^{*} (892)^{+}$ decays

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1183

An amplitude analysis of the $B^{+} \to (π^{+} π^{-}) (K_{S}^{0} π^{+})$ decay is performed in the mass regions $0.30 < m_{π^{+} π^{-}} < 1.10 GeV / c^{2}$ and $0.75 < m_{K^0_{\mathrm{S…

hep-ex2022★ 4 cited

Measurement of the ratio of branching fractions $B (B_{c}^{+} \to B_{s}^{0} π^{+}) / B (B_{c}^{+} \to J / ψ π^{+})$

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1054

The ratio of branching fractions of $B_{c}^{+} \to B_{s}^{0} π^{+}$ and $B_{c}^{+} \to J / ψ π^{+}$ decays is measured with proton-proton collision data of a centre-of-mass energy of $13 TeV$ .…

Branching fraction measurements of η and η′(958) anomalous decays

Observation of several sources of CP violation in B+→K+π+π− decays

Resolution of outstanding puzzles in B+→K+π+π− decays

Amplitude analysis of B+→K+π+π− decays

Associated Z + J/ψ production as a probe of multiparton interactions in the forward region

First evidence of the decay B+→π+e+e−

Measurement of inclusive production of charmonium states in b-hadron decays via their decay into ϕϕ

Test of lepton flavour universality with B0→K∗0ℓ+ℓ− decays at large dilepton invariant mass

Search for the decays B(s)0​→J/ψγ at LHCb

Measurement of CP asymmetries in B0→Ds−​D+ and Bs0​→Ds+​D− decays

Measurement of the local and nonlocal amplitudes in B+→K+μ+μ− decays

Improved branching-fraction measurements of B(s)0​→KS0​h+h′− decays and first observation of Bs0​→KS0​K+K−

B-jet fragmentation with B±→J/ψK± decays in s​=13 TeV pp collisions at LHCb

First measurement of the decay-time-integrated CP asymmetry in Bs0​→Ds−​π+ decays

A method for luminosity determination based on real-time hit reconstruction with the LHCb silicon pixel detector

Search for τ−→μ−μ+μ− decays at the LHCb experiment with Run 2 data

Observation of the decay χc1​(3872)→J/ψμ+μ−

Machine learning techniques for jet reconstruction at LHCb and application to the search for H→bbˉ and H→ccˉ in s​=13 TeV pp collisions

Observation of CP violation in B0→J/ψρ(770)0 decays

First observation of the Bs0​→Λc+​Λc​− decay and evidence for the B0→Λc+​Λc​− decay

Searches for B0→K+π−τ+τ− and Bs0​→K+K−τ+τ− decays

Measurement of the branching fraction of the Λb0​→J/ψΛ decay and isospin asymmetry of B→J/ψK decays

First observation of CP violation and measurement of polarization in B+→ρ(770)0K∗(892)+ decays

Measurement of the ratio of branching fractions B(Bc+​→Bs0​π+)/B(Bc+​→J/ψπ+)

Branching fraction measurements of $η$ and $η^{'} (958)$ anomalous decays

Observation of several sources of $C P$ violation in $B^{+} \to K^{+} π^{+} π^{-}$ decays

Resolution of outstanding puzzles in $B^{+} \to K^{+} π^{+} π^{-}$ decays

Amplitude analysis of $B^{+} \to K^{+} π^{+} π^{-}$ decays

Associated $Z$ + $J / ψ$ production as a probe of multiparton interactions in the forward region

First evidence of the decay $B^{+} \to π^{+} e^{+} e^{-}$

Measurement of inclusive production of charmonium states in $b$ -hadron decays via their decay into $ϕϕ$

Test of lepton flavour universality with $B^{0} \to K^{* 0} ℓ^{+} ℓ^{-}$ decays at large dilepton invariant mass

Search for the decays $B_{(s)}^{0} \to J / ψ γ$ at LHCb

Measurement of CP asymmetries in $B^{0} \to D_{s}^{-} D^{+}$ and $B_{s}^{0} \to D_{s}^{+} D^{-}$ decays

Measurement of the local and nonlocal amplitudes in $B^{+} \to K^{+} μ^{+} μ^{-}$ decays

Improved branching-fraction measurements of $B_{(s)}^{0} \to K_{S}^{0} h^{+} h^{^{'} -}$ decays and first observation of $B_{s}^{0} \to K_{S}^{0} K^{+} K^{-}$

$B$ -jet fragmentation with $B^{\pm} \to J / ψ K^{\pm}$ decays in $s = 13$ TeV $pp$ collisions at LHCb

First measurement of the decay-time-integrated $C P$ asymmetry in $B_{s}^{0} \to D_{s}^{-} π^{+}$ decays

Search for $τ^{-} \to μ^{-} μ^{+} μ^{-}$ decays at the LHCb experiment with Run 2 data

Observation of the decay $χ_{c 1} (3872) \to J / ψ μ^{+} μ^{-}$

Machine learning techniques for jet reconstruction at LHCb and application to the search for $H \to b b ˉ$ and $H \to c c ˉ$ in $s = 13$ TeV $pp$ collisions

Observation of $C P$ violation in $B^{0} \to J / ψ ρ (770)^{0}$ decays

First observation of the $B_{s}^{0} \to Λ_{c}^{+} Λ_{c}^{-}$ decay and evidence for the $B^{0} \to Λ_{c}^{+} Λ_{c}^{-}$ decay

Searches for $B^{0} \to K^{+} π^{-} τ^{+} τ^{-}$ and $B_{s}^{0} \to K^{+} K^{-} τ^{+} τ^{-}$ decays

Measurement of the branching fraction of the $Λ_{b}^{0} \to J / ψ Λ$ decay and isospin asymmetry of $B \to J / ψ K$ decays

First observation of $C P$ violation and measurement of polarization in $B^{+} \to ρ (770)^{0} K^{*} (892)^{+}$ decays

Measurement of the ratio of branching fractions $B (B_{c}^{+} \to B_{s}^{0} π^{+}) / B (B_{c}^{+} \to J / ψ π^{+})$