A. Abdelmotteleb

activity

20222026

most citedTest of lepton universality in

b \to s ℓ^{+} ℓ^{-}

decays

126 citations · 451 across the 62 of their papers we have counts for

collaborators

64 papers

nucl-ex2026

Measurement of the average transverse momentum of forward prompt charged particles in $pp$ and $p Pb$ collisions at $s_{N N} = 5.02 TeV$

LHCb collaboration, R. Aaij, M. Abdelfatah +1106

This letter presents the first measurements of the average transverse momentum of prompt charged particles in $pp$ and $p Pb$ collisions as a function of collision multipli…

hep-ex2026

Model-independent measurement of the transversity amplitudes of the $B^{0} \to K^{* 0} μ^{+} μ^{-}$ decay

LHCb collaboration, R. Aaij, M. Abdelfatah +1154

An analysis of the decay amplitudes of $B^{0} \to K^{* 0} (\to K^{+} π^{-}) μ^{+} μ^{-}$ is presented, using proton-proton collision data recorded by the LHCb experiment at centre-of-mass energie…

hep-ex2026

New measurements of $B_{c}^{+}$ decays into single charm final states

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1132

Using proton-proton collision data corresponding to an integrated luminosity of $9 fb^{- 1}$ collected by the LHCb experiment, searches are performed for $B_{c}^{+}$ mesons d…

nucl-ex2026

Modification of $Υ$ production in $p$ O and OO collisions at LHCb

LHCb collaboration, R. Aaij, M. Abdelfatah +1161

The production rates of $Υ (2 S)$ and $Υ (3 S)$ mesons relative to that of the $Υ (1 S)$ state are measured in $pp$ , $p$ O, and OO collisions by the LHCb collaboratio…

nucl-ex2026

Study of nuclear effects on charm production in light-ion collisions

LHCb collaboration, R. Aaij, M. Abdelfatah +1106

The onset of nuclear effects in light-ion collisions is studied by measuring the ratio of $D^{0}$ meson production between NeNe and OO collisions at a center-of-mass energy per nucle…

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

Search for lepton-number-violating $B^{-} \to D^{(*) +} μ^{-} μ^{-}$ decays

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

A search is performed for lepton-number-violating $B^{-} \to D^{(*) +} μ^{-} μ^{-}$ decays, using data collected by the LHCb experiment in proton-proton collisions at a center-of-mass energy…

hep-ex2026

Evidence for the rare decay $B^{+} \to Λ ˉ p μ^{+} μ^{-}$

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1186

A search for the rare decay $B^{+} \to Λ ˉ p μ^{+} μ^{-}$ is performed using proton-proton collision data recorded by the LHCb experiment at a center-of-mass energy of $\sqrt{s}=…

hep-ex2026

First evidence of the $B_{s}^{0} \to K^{-} π^{+} γ$ decay

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1173

The first search for the $B_{s}^{0} \to K^{-} π^{+} γ$ decay in the range $796 < m (K^{-} π^{+}) < 1800 MeV/ c^{2}$ is performed using data from proton-proton collisions collected by the L…

hep-ex2025

Comprehensive analysis of the $B^{0} \to K^{* 0} μ^{+} μ^{-}$ decay

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

An analysis of the $B^{0} \to K^{* 0} (\to K^{+} π^{-}) μ^{+} μ^{-}$ decay is presented using proton-proton collision data collected by the LHCb experiment, corresponding to an inte…

hep-ex2025★ 2 cited

Search for heavy neutral leptons in B-meson decays

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

A search for long-lived heavy neutral leptons produced in B-meson decays and decaying to a $μ^{\pm} π^{\mp}$ final state is performed with data collected by the LHCb experiment in pro…

hep-ex2025

Measurement of the top-quark production cross-section and charge asymmetry at LHCb

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1173

The first measurements of the top- and antitop-quark differential production cross-sections and the top-quark charge asymmetry in the forward region are presented, using proton-pro…

hep-ex2025★ 1 cited

Measurement of the branching fractions and longitudinal polarisations of $B_{(s)}^{0} \to K^{* 0} K^{* 0}$ decays

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

A time- and flavour-integrated amplitude analysis of $B^{0}$ and $B_{s}^{0}$ decays to the $(K^{+} π^{-}) (K^{-} π^{+})$ final state in the $K^*(892)^0 \kern 0.18em \overline{\kern -0.18em K}{}^{*}…

hep-ex2025

Observation of the rare baryonic decay $B^{+} \to p Λ ˉ$ and measurement of its weak decay parameter

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

The first observation of the decay $B^{+} \to p Λ ˉ$ is presented, using proton-proton collision data collected by the LHCb experiment between 2016 and 2018 at a cent…

hep-ex2025

Observation and investigation of the $T_{c c ˉ 1} (4430)^{+}$ structure in $B^{+} \to ψ (2 S) K_{S}^{0} π^{+}$ decays

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

The first four-dimensional amplitude analysis of the $B^{+} \to ψ (2 S) K_{S}^{0} π^{+}$ decay is performed with proton-proton collision data collected by the LHCb experiment…

hep-ex2025

Differential decay rate of $B^{+} \to J / ψ K^{+}$ with the LHCb Upgrade I experiment

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

The normalised decay rate of $B^{+} \to J / ψ (\to μ^{+} μ^{-}) K^{+}$ is measured as a function of the lepton helicity angle using a data sample corresponding to an integrated luminosity of $…

hep-ex2025★ 1 cited

Branching fraction measurement of the $Λ \to p μ^{-} ν_{μ}$ decay

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

A measurement of the branching fraction for the decay $Λ \to p μ^{-} ν_{μ}$ is presented using $pp$ collision data collected by the LHCb experiment at a centre…

hep-ex2025★ 2 cited

Measurement of charged-hadron distributions in heavy-flavor jets in proton-proton collisions at $s$ =13 TeV

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1174

Charged-hadron distributions in heavy-flavor jets are measured in proton-proton collisions at a center-of-mass energy of $s$ = 13 TeV collected by the LHCb experiment. Distr…

hep-ex2025

Search for $K_{S (L)}^{0} \to π^{+} π^{-} μ^{+} μ^{-}$ decays at LHCb

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

A search for $K_{S (L)}^{0} \to π^{+} π^{-} μ^{+} μ^{-}$ decays is performed using proton-proton collision data collected by the LHCb experiment at a centre-of-mass en…

hep-ex2025★ 1 cited

Measurement of $C P$ asymmetry in $D^{0} \to K_{S}^{0} K_{S}^{0}$ decays with Run 3 data

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1189

A measurement of $C P$ asymmetry in $D^{0} \to K_{S}^{0} K_{S}^{0}$ decays is reported, based on a data sample of proton-proton collisions collected with the LHCb detector in 20…

hep-ex2025

Study of charm mixing and CP violation with $D^{0} \to K^{\pm} π^{\mp} π^{\pm} π^{\mp}$ decays

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

A study of charm mixing and CP violation in $D^{0} \to K^{\pm} π^{\mp} π^{\pm} π^{\mp}$ decays is performed using data collected by the LHCb experiment in proton-proton collisions from 2015 to 2…

hep-ex2025

Measurement of the $W \to μ ν_{μ}$ cross-sections as a function of the muon transverse momentum in $pp$ collisions at 5.02 TeV

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1186

The $pp \to W^{\pm} (\to μ^{\pm} ν_{μ}) X$ cross-sections are measured at a proton-proton centre-of-mass energy $s = 5.02$ TeV using a dataset corresponding to an integrated l…

hep-ex2025★ 2 cited

First evidence of $C P$ violation in beauty baryon to charmonium decays

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1178

A study of the difference in the $C P$ asymmetries between $Λ_{b}^{0} \to J / ψ p π^{-}$ and $Λ_{b}^{0} \to J / ψ p K^{-}$ decays, $Δ A_{C P}$ , is performed using proton-prot…

hep-ex2025★ 2 cited

Observation of $B_{c}^{+} \to D h^{+} h^{-}$ decays

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

Searches are presented for $B_{c}^{+} \to D h^{+} h^{-}$ decays, where $D$ is a charmed meson and $h^{\pm}$ is a charged pion or kaon, using $pp$ collision data collected by the LHCb e…

Measurement of the average transverse momentum of forward prompt charged particles in pp and pPb collisions at sNN​​=5.02TeV

Model-independent measurement of the transversity amplitudes of the B0→K∗0μ+μ− decay

New measurements of Bc+​ decays into single charm final states

Modification of Υ production in pO and OO collisions at LHCb

Study of nuclear effects on charm production in light-ion collisions

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

Search for lepton-number-violating B−→D(∗)+μ−μ− decays

Evidence for the rare decay B+→Λˉpμ+μ−

First evidence of the Bs0​→K−π+γ decay

Comprehensive analysis of the B0→K∗0μ+μ− decay

Search for heavy neutral leptons in B-meson decays

Measurement of the top-quark production cross-section and charge asymmetry at LHCb

Measurement of the branching fractions and longitudinal polarisations of B(s)0​→K∗0K∗0 decays

Observation of the rare baryonic decay B+→pΛˉ and measurement of its weak decay parameter

Observation and investigation of the Tccˉ1​(4430)+ structure in B+→ψ(2S)KS0​π+ decays

Differential decay rate of B+→J/ψK+ with the LHCb Upgrade I experiment

Branching fraction measurement of the Λ→pμ−νμ​ decay

Measurement of charged-hadron distributions in heavy-flavor jets in proton-proton collisions at s​=13 TeV

Search for KS(L)0​→π+π−μ+μ− decays at LHCb

Measurement of CP asymmetry in D0→KS0​KS0​ decays with Run 3 data

Study of charm mixing and CP violation with D0→K±π∓π±π∓ decays

Measurement of the W→μνμ​ cross-sections as a function of the muon transverse momentum in pp collisions at 5.02 TeV

First evidence of CP violation in beauty baryon to charmonium decays

Observation of Bc+​→Dh+h− decays

Measurement of the average transverse momentum of forward prompt charged particles in $pp$ and $p Pb$ collisions at $s_{N N} = 5.02 TeV$

Model-independent measurement of the transversity amplitudes of the $B^{0} \to K^{* 0} μ^{+} μ^{-}$ decay

New measurements of $B_{c}^{+}$ decays into single charm final states

Modification of $Υ$ production in $p$ O and OO collisions at LHCb

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

Search for lepton-number-violating $B^{-} \to D^{(*) +} μ^{-} μ^{-}$ decays

Evidence for the rare decay $B^{+} \to Λ ˉ p μ^{+} μ^{-}$

First evidence of the $B_{s}^{0} \to K^{-} π^{+} γ$ decay

Comprehensive analysis of the $B^{0} \to K^{* 0} μ^{+} μ^{-}$ decay

Measurement of the branching fractions and longitudinal polarisations of $B_{(s)}^{0} \to K^{* 0} K^{* 0}$ decays

Observation of the rare baryonic decay $B^{+} \to p Λ ˉ$ and measurement of its weak decay parameter

Observation and investigation of the $T_{c c ˉ 1} (4430)^{+}$ structure in $B^{+} \to ψ (2 S) K_{S}^{0} π^{+}$ decays

Differential decay rate of $B^{+} \to J / ψ K^{+}$ with the LHCb Upgrade I experiment

Branching fraction measurement of the $Λ \to p μ^{-} ν_{μ}$ decay

Measurement of charged-hadron distributions in heavy-flavor jets in proton-proton collisions at $s$ =13 TeV

Search for $K_{S (L)}^{0} \to π^{+} π^{-} μ^{+} μ^{-}$ decays at LHCb

Measurement of $C P$ asymmetry in $D^{0} \to K_{S}^{0} K_{S}^{0}$ decays with Run 3 data

Study of charm mixing and CP violation with $D^{0} \to K^{\pm} π^{\mp} π^{\pm} π^{\mp}$ decays

Measurement of the $W \to μ ν_{μ}$ cross-sections as a function of the muon transverse momentum in $pp$ collisions at 5.02 TeV

First evidence of $C P$ violation in beauty baryon to charmonium decays

Observation of $B_{c}^{+} \to D h^{+} h^{-}$ decays