S. Belin

activity

20102026

most citedObservation of a narrow pentaquark state,

P_{c} (4312)^{+}

, and of two-peak structure of the

P_{c} (4450)^{+}

738 citations · 8.3k across the 290 of their papers we have counts for

collaborators

Showing hep-exShow all

288 papers · 1 filter

hep-ex2026

Observation of the $Ξ_{b}^{-} \to Ξ^{-} μ^{+} μ^{-}$ and study of the $Ξ_{b}^{-} \to Ξ^{-} ψ (2 S)$ decays

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

The rare decay $Ξ_{b}^{-} \to Ξ^{-} μ^{+} μ^{-}$ is observed for the first time using proton-proton collision data collected by the LHCb experiment at centre-of-mass energies of $7$ , $8$ and~$…

hep-ex2026

Energy-energy correlators within $Z$ -tagged jets in proton-proton collisions at $s$ = 13 TeV

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

Energy-energy correlators probe perturbative and nonperturbative QCD regimes of jet formation through momentum-weighted angular correlations between hadrons. First measurements in…

hep-ex2026

First measurement of the forward rapidity dependence of $W$ boson transverse helicity fractions

LHCb collaboration, R. Aaij, M. Abdelfatah +1160

The transverse helicity fractions of $W$ bosons are measured as a function of the $W$ boson rapidity, $y_{W}$ , in the range $0 \leq y_{W} \leq 5$ using $W \to μ ν_{μ}$ decays in $pp$ co…

hep-ex2026

Measurement of the $Ω_{b}^{-}$ baryon lifetime

LHCb collaboration, R. Aaij, M. Abdelfatah +1160

The lifetime ratio $r_{τ} \equiv τ_{Ω_{b}^{-}} / τ_{Ξ_{b}^{-}}$ between the $Ω_{b}^{-}$ and $Ξ_{b}^{-}$ baryons is measured using a sample of $pp$ collision data corresponding to an integrated lum…

hep-ex2026

Discovery of an unexpectedly light and narrow beauty-strange state

LHCb collaboration, R. Aaij, M. Abdelfatah +1152

As the essential building blocks of visible matter, hadrons have traditionally been classified by the quark model as mesons composed of quark-antiquark pairs and baryons built from…

hep-ex2026

Observation of the doubly charmed baryon $Ω_{cc}^{+}$

LHCb collaboration, R. Aaij, M. Abdelfatah +1153

A search for the doubly charmed baryon $Ω_{cc}^{+}$ in the $Ω_{c}^{0} π^{+}$ decay channel is performed using proton-proton collision data corresponding to an integrated lum…

hep-ex2026

Observation of $Ξ_{b}^{0} \to Ξ^{0} J / ψ$ and evidence for $Ξ_{b}^{0} \to Ξ^{0} ψ (2 S)$ decays

LHCb collaboration, R. Aaij, M. Abdelfatah +1159

The first search for the beauty baryon decays $Ξ_{b}^{0} \to Ξ^{0} J / ψ$ and $Ξ_{b}^{0} \to Ξ^{0} ψ (2 S)$ is presented using the proton-proton collision dataset collected by the LHCb…

hep-ex2026

Stringent limits on $C P T$ - and Lorentz-invariance violation from $B_{s}^{0}$ meson decays

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

Tests of fundamental symmetries, such as $C P T$ and Lorentz invariance, provide sensitive probes of physics beyond the standard quantum-field-theory framework. Possible violations…

hep-ex2026

First measurement of the ratio of $ψ (2 S)$ -to- $J / ψ$ inclusive production in $p Ar$ and $pp$ collisions at $s_{NN} = 113 GeV$ with SMOG2

LHCb collaboration, R. Aaij, M. Abdelfatah +1162

A measurement of the $ψ (2 S)$ -to- $J / ψ$ production cross-section ratio is performed in proton-argon ( $p Ar$ ) and proton-proton ( $pp$ ) collisions in fixed-target mode at $\sqr…

hep-ex2026

Observation of the $Ξ_{c}^{0} \to p K^{-}$ decay and measurement of its decay asymmetry

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

A search for the Cabibbo-suppressed decay $Ξ_{c}^{0} \to p K^{-}$ is performed using $pp$ collision data corresponding to an integrated luminosity of $5.4 fb^{- 1}$ , collected by…

hep-ex2026

Angular analysis of the decay $Λ_{b}^{0} \to Λ (1520) μ^{+} μ^{-}$

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

The first angular analysis of $Λ_{b}^{0} \to Λ (1520) μ^{+} μ^{-}$ decays is presented, using proton-proton collision data collected with the LHCb detector betwe…

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

Differential measurement of the branching fraction and $C P$ asymmetry of the decay $B^{\pm} \to π^{\pm} μ^{+} μ^{-}$

LHCb collaboration, R. Aaij, M. Abdelfatah +1121

Differential measurements of the branching fraction and $C P$ asymmetry of the decay $B^{\pm} \to π^{\pm} μ^{+} μ^{-}$ are performed in intervals of the dimuon mass squared, $q^{2}$ , using pro…

hep-ex2026

Measurement of the ratio of branching fractions $B (B_{c}^{+} \to J / ψ τ^{+} ν_{τ}) / B (B_{c}^{+} \to J / ψ μ^{+} ν_{μ})$

LHCb collaboration, R. Aaij, M. Abdelfatah +1121

A measurement of the ratio of semileptonic branching fractions $R (J ψ)$ , defined as $\mathcal{R}(J/ψ) \equiv \mathcal{B}(B_c^+ \to J/ψτ^+ ν_τ)/\mathcal{B}(B_c^+ \to J/ψμ^+…

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

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★ 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★ 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★ 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

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…

hep-ex2025

Amplitude analysis of $B^{0} \to η_{c} (1 S) K^{+} π^{-}$ decays

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

An amplitude analysis of the $B^{0} \to η_{c} (1 S) K^{+} π^{-}$ decays with $η_{c} (1 S) \to p p ˉ$ is performed using a sample corresponding to an integrated luminosity of 9$\…

Observation of the Ξb−​→Ξ−μ+μ− and study of the Ξb−​→Ξ−ψ(2S) decays

Energy-energy correlators within Z-tagged jets in proton-proton collisions at s​ = 13 TeV

First measurement of the forward rapidity dependence of W boson transverse helicity fractions

Measurement of the Ωb−​ baryon lifetime

Discovery of an unexpectedly light and narrow beauty-strange state

Observation of the doubly charmed baryon Ωcc+​

Observation of Ξb0​→Ξ0J/ψ and evidence for Ξb0​→Ξ0ψ(2S) decays

Stringent limits on CPT- and Lorentz-invariance violation from Bs0​ meson decays

First measurement of the ratio of ψ(2S)-to-J/ψ inclusive production in pAr and pp collisions at sNN​​=113GeV with SMOG2

Observation of the Ξc0​→pK− decay and measurement of its decay asymmetry

Angular analysis of the decay Λb0​→Λ(1520)μ+μ−

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

Differential measurement of the branching fraction and CP asymmetry of the decay B±→π±μ+μ−

Measurement of the ratio of branching fractions B(Bc+​→J/ψτ+ντ​)/B(Bc+​→J/ψμ+νμ​)

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

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

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

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

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

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

Amplitude analysis of B0→ηc​(1S)K+π− decays

Observation of the $Ξ_{b}^{-} \to Ξ^{-} μ^{+} μ^{-}$ and study of the $Ξ_{b}^{-} \to Ξ^{-} ψ (2 S)$ decays

Energy-energy correlators within $Z$ -tagged jets in proton-proton collisions at $s$ = 13 TeV

First measurement of the forward rapidity dependence of $W$ boson transverse helicity fractions

Measurement of the $Ω_{b}^{-}$ baryon lifetime

Observation of the doubly charmed baryon $Ω_{cc}^{+}$

Observation of $Ξ_{b}^{0} \to Ξ^{0} J / ψ$ and evidence for $Ξ_{b}^{0} \to Ξ^{0} ψ (2 S)$ decays

Stringent limits on $C P T$ - and Lorentz-invariance violation from $B_{s}^{0}$ meson decays

First measurement of the ratio of $ψ (2 S)$ -to- $J / ψ$ inclusive production in $p Ar$ and $pp$ collisions at $s_{NN} = 113 GeV$ with SMOG2

Observation of the $Ξ_{c}^{0} \to p K^{-}$ decay and measurement of its decay asymmetry

Angular analysis of the decay $Λ_{b}^{0} \to Λ (1520) μ^{+} μ^{-}$

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

Differential measurement of the branching fraction and $C P$ asymmetry of the decay $B^{\pm} \to π^{\pm} μ^{+} μ^{-}$

Measurement of the ratio of branching fractions $B (B_{c}^{+} \to J / ψ τ^{+} ν_{τ}) / B (B_{c}^{+} \to J / ψ μ^{+} ν_{μ})$

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

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

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

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

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

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

Amplitude analysis of $B^{0} \to η_{c} (1 S) K^{+} π^{-}$ decays