R. Bonacci

activity

20242026

most citedObservation of charge-parity symmetry breaking in baryon decays

47 citations · 160 across the 103 of their papers we have counts for

collaborators

109 papers

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

Branching fraction measurement of the $B^{0} \to K^{+} π^{-} μ^{+} μ^{-}$ decay at high dihadron mass

LHCb collaboration, R. Aaij, M. Abdelfatah +1103

This Letter presents the first measurement of the $B^{0} \to K^{+} π^{-} μ^{+} μ^{-}$ differential branching fraction in the region of the dihadron $K^{+} π^{-}$ mass, $m_{K π}$ , $1000< m_{…

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

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

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

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

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…

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

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

Study of muon-tagged $D_{s 1} (2460)^{+}$ and $D_{s 1} (2536)^{+}$ decays to the $D_{s}^{+} π^{+} π^{-}$ final state

LHCb collaboration, R. Aaij, M. Abdelfatah +1119

Decays of the pseudovector $D_{s 1} (2460)^{+}$ and $D_{s 1} (2536)^{+}$ mesons to the three-body $D_{s}^{+} π^{+} π^{-}$ final state are studied. The data sample is based on decays of beauty hadr…

hep-ex2026

Improved measurement of $C P$ violation in $B_{s}^{0} \to J / ψ π^{+} π^{-}$ decays

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

The time-dependent $C P$ asymmetry in $B_{s}^{0} \to J / ψ π^{+} π^{-}$ decays is measured using proton-proton collision data, corresponding to an integrated luminosity of $6\,\text…

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

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…

hep-ex2026

Search for $C P$ violation in $D^{+} \to ϕ π^{+}$ decays

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

A search for charge-parity ( $C P$ ) violation in the Cabibbo-suppressed $D^{+} \to ϕ π^{+}$ decay is presented, using proton-proton collision data corresponding to an integrated luminos…

hep-ex2026

Search for the decays $B_{(c)}^{+} \to μ^{+} ν_{μ} γ$

LHCb collaboration, R. Aaij, M. Abdelfatah +1128

A search for the radiative leptonic decays $B^{+} \to μ^{+} ν_{μ} γ$ and $B_{c}^{+} \to μ^{+} ν_{μ} γ$ is performed using proton-proton collision data collected with the LHCb experiment at a center-of-m…

hep-ex2026

Observation of new excited $Σ_{c}^{0}$ states in the $B^{-} \to Λ_{c}^{+} p π^{-}$ decay

LHCb collaboration, R. Aaij, M. Abdelfatah +1100

An amplitude analysis of the $B^{-} \to Λ_{c}^{+} p π^{-}$ decay is performed using proton-proton collision data, corresponding to an integrated luminosity of $9\text{…

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-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…

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

Branching fraction measurement of the B0→K+π−μ+μ− decay at high dihadron mass

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

Measurement of the Ωb−​ baryon lifetime

Observation of the doubly charmed baryon Ωcc+​

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

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

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

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

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

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

Study of muon-tagged Ds1​(2460)+ and Ds1​(2536)+ decays to the Ds+​π+π− final state

Improved measurement of CP violation in Bs0​→J/ψπ+π− 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

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

Search for CP violation in D+→ϕπ+ decays

Search for the decays B(c)+​→μ+νμ​γ

Observation of new excited Σc0​ states in the B−→Λc+​p​π− 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​)

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

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

Branching fraction measurement of the $B^{0} \to K^{+} π^{-} μ^{+} μ^{-}$ decay at high dihadron mass

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

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

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

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

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

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

Study of muon-tagged $D_{s 1} (2460)^{+}$ and $D_{s 1} (2536)^{+}$ decays to the $D_{s}^{+} π^{+} π^{-}$ final state

Improved measurement of $C P$ violation in $B_{s}^{0} \to J / ψ π^{+} π^{-}$ 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

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

Search for $C P$ violation in $D^{+} \to ϕ π^{+}$ decays

Search for the decays $B_{(c)}^{+} \to μ^{+} ν_{μ} γ$

Observation of new excited $Σ_{c}^{0}$ states in the $B^{-} \to Λ_{c}^{+} p π^{-}$ 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 $B (B_{c}^{+} \to J / ψ τ^{+} ν_{τ}) / B (B_{c}^{+} \to J / ψ μ^{+} ν_{μ})$

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