F. Bedeschi
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View article: Measurement of the branching fractions and longitudinal polarisations of $B^0_{(s)} \to K^{*0} \kern 0.18em \overline{\kern -0.18em K}{}^{*0}$ decays
Measurement of the branching fractions and longitudinal polarisations of $B^0_{(s)} \to K^{*0} \kern 0.18em \overline{\kern -0.18em K}{}^{*0}$ decays Open
A time- and flavour-integrated amplitude analysis of $B^0$ and $B^0_s$ decays to the $(K^+π^-)(K^-π^+)$ final state in the $K^*(892)^0 \kern 0.18em \overline{\kern -0.18em K}{}^{*}(892)^0$ region is presented, using $pp$ collision data rec…
View article: Search for the decay B0 → ϕϕ
Search for the decay B0 → ϕϕ Open
A bstract A search for the decay B 0 → ϕϕ is made using pp collision data collected with the LHCb detector at centre-of-mass energies of 7, 8 and 13 TeV, corresponding to an integrated luminosity of 9 fb − 1 . No significant signal is obse…
View article: Observation of the rare baryonic decay $B^{+}\rightarrow p \bar{\itΛ}$ and measurement of its weak decay parameter
Observation of the rare baryonic decay $B^{+}\rightarrow p \bar{\itΛ}$ and measurement of its weak decay parameter Open
The first observation of the decay $B^{+}\rightarrow p \bar{\itΛ}$ is presented, using proton-proton collision data collected by the LHCb experiment between 2016 and 2018 at a center-of-mass energy of 13 TeV, corresponding to an integrated…
View article: Search for the lepton-flavour-violating decays B0 → K*0τ±e∓
Search for the lepton-flavour-violating decays B0 → K*0τ±e∓ Open
A bstract A first search at LHCb for the lepton-flavour-violating decays B 0 → K *0 τ ± e ∓ is presented. The analysis is performed using a sample of proton-proton collision data, collected with the LHCb detector at a centre-of-mass energy…
View article: Observation and investigation of the $T_{c\bar{c}1}(4430)^{+}$ structure in $B^{+} \to ψ(2S) K_{\text{S}}^{0} π^{+}$ decays
Observation and investigation of the $T_{c\bar{c}1}(4430)^{+}$ structure in $B^{+} \to ψ(2S) K_{\text{S}}^{0} π^{+}$ decays Open
The first four-dimensional amplitude analysis of the $B^{+} \to ψ(2S) K_{\text{S}}^{0} π^{+}$ decay is performed with proton-proton collision data collected by the LHCb experiment at $\sqrt{s} = 13~\rm{TeV}$, corresponding to an integrated…
View article: Coherent photoproduction of ρ0, ω and excited vector mesons in ultraperipheral PbPb collisions
Coherent photoproduction of ρ0, ω and excited vector mesons in ultraperipheral PbPb collisions Open
A bstract The invariant-mass distribution for the coherent photoproduction of dipions in ultraperipheral PbPb collisions is measured using data, corresponding to an integrated luminosity of 224.6 ± 9.6μb − 1 , collected by the LHCb experim…
View article: Future circular collider feasibility study report
Future circular collider feasibility study report Open
In response to the 2020 Update of the European Strategy for Particle Physics , the Future Circular Collider (FCC) Feasibility Study was launched as an international collaboration hosted by CERN. This report describes the FCC integrated pro…
View article: Measurement of charged-hadron distributions in heavy-flavor jets in proton-proton collisions at $\sqrt{s}$=13 TeV
Measurement of charged-hadron distributions in heavy-flavor jets in proton-proton collisions at $\sqrt{s}$=13 TeV Open
Charged-hadron distributions in heavy-flavor jets are measured in proton-proton collisions at a center-of-mass energy of $\sqrt{s}$ = 13 TeV collected by the LHCb experiment. Distributions of the longitudinal momentum fraction, transverse …
View article: Amplitude analysis of the <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"> <mml:msubsup> <mml:mi mathvariant="normal">Ξ</mml:mi> <mml:mi>c</mml:mi> <mml:mo>+</mml:mo> </mml:msubsup> <mml:mo stretchy="false">→</mml:mo> <mml:mi>p</mml:mi> <mml:msup> <mml:mi>K</mml:mi> <mml:mo>−</mml:mo> </mml:msup> <mml:msup> <mml:mi>π</mml:mi> <mml:mo>+</mml:mo> </mml:msup> </mml:math> decay and <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"> <mml:msubsup> <mml:mi mathvariant="normal">Ξ</mml:mi> <mml:mi>c</mml:mi> <mml:mo>+</mml:mo> </mml:msubsup> </mml:math> baryon polarization measurement in semileptonic beauty-hadron decays
Amplitude analysis of the decay and baryon polarization measurement in semileptonic beauty-hadron decays Open
An amplitude analysis of the Ξ c + → p K − π + decay together with a measurement of the Ξ c + polarization vector in semileptonic beauty-hadron decays is presented. The analysis is performed using proton-proton collision data c…
View article: Measurement of branching fractions and CP asymmetries in $$ {\varLambda}_b^0\left({\varXi}_b^0\right)\to p{K}_{\textrm{S}}^0{h}^{-} $$ decays
Measurement of branching fractions and CP asymmetries in $$ {\varLambda}_b^0\left({\varXi}_b^0\right)\to p{K}_{\textrm{S}}^0{h}^{-} $$ decays Open
A bstract A study of $$ {\Lambda}_b^0 $$ and $$ {\Xi}_b^0 $$ baryon decays to the final states $$ p{K}_{\textrm{S}}^0{\pi}^{-} $$ and $$ p{K}_{\textrm{S}}^0{K}^{-} $$ is performed using pp collision data collect…
View article: Updated measurement of CP violation and polarisation in $$ {B}_s^0\to J/\psi {\overline{K}}^{\ast }{(892)}^0 $$ decays
Updated measurement of CP violation and polarisation in $$ {B}_s^0\to J/\psi {\overline{K}}^{\ast }{(892)}^0 $$ decays Open
View article: Measurement of the <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>Z</mml:mi></mml:math>-Boson Mass
Measurement of the -Boson Mass Open
The first dedicated Z-boson mass measurement at the LHC with Z→μ+μ− decays is reported. The dataset uses proton-proton collisions at a center-of-mass energy of 13 TeV, recorded in 2016 by the LHCb experiment, and corresponds to an integrat…
View article: Observation of the doubly-charmed-baryon decay $$ {\Xi}_{cc}^{++}\to {\Xi}_c^0{\pi}^{+}{\pi}^{+} $$
Observation of the doubly-charmed-baryon decay $$ {\Xi}_{cc}^{++}\to {\Xi}_c^0{\pi}^{+}{\pi}^{+} $$ Open
A bstract A search for the doubly-charmed-baryon decay $$ {\Xi}_{cc}^{++}\to {\Xi}_c^0{\pi}^{+}{\pi}^{+} $$ is performed using proton-proton collision data collected by the LHCb experiment at a centre-of-mass energy of 13…
View article: Measurement of $C\!P$ asymmetry in $D^0 \to K^0_{\rm S} K^0_{\rm S}$ decays with the LHCb Upgrade I detector
Measurement of $C\!P$ asymmetry in $D^0 \to K^0_{\rm S} K^0_{\rm S}$ decays with the LHCb Upgrade I detector Open
A measurement of $C\!P$ asymmetry in $D^0 \to K^0_{\rm S} K^0_{\rm S}$ decays is reported, based on a data sample of proton-proton collisions collected with the LHCb Upgrade I detector in 2024 at a centre-of-mass energy of $13.6\,$TeV, cor…
View article: Rapidity and multiplicity dependence of charged-particle flow in pPb collisions at $$ \sqrt{s_{\textrm{NN}}}=8.16 $$ TeV
Rapidity and multiplicity dependence of charged-particle flow in pPb collisions at $$ \sqrt{s_{\textrm{NN}}}=8.16 $$ TeV Open
A bstract The elliptic and triangular flow of charged particles are measured using two-particle angular correlations in p Pb collisions in the pseudorapidity range 2.0 < | η | < 4.8. The data sample was collected by the LHCb experiment in …
View article: Improved measurement of η/η′ mixing in $$ {B}_{(s)}^0\to J/\psi {\eta}^{\left(\prime \right)} $$ decays
Improved measurement of η/η′ mixing in $$ {B}_{(s)}^0\to J/\psi {\eta}^{\left(\prime \right)} $$ decays Open
A bstract Branching fraction ratios between the decays $$ {B}_{(s)}^0\to J/\psi {\eta}^{\left(\prime \right)} $$ are measured using proton-proton collision data collected by the LHCb experiment at centre-of-mass energies of 7…
View article: Measurements of charmed meson and antimeson production asymmetries at $$ \sqrt{\textrm{s}}=13.6 $$ TeV
Measurements of charmed meson and antimeson production asymmetries at $$ \sqrt{\textrm{s}}=13.6 $$ TeV Open
A bstract This article presents doubly differential measurements of the asymmetries in production rates between mesons containing a charm quark and those containing an anti-charm quark in proton-proton collisions at a centre-of-mass energy…
View article: Study of charm mixing and CP violation with $D^0\to K^\pmπ^\mpπ^\pmπ^\mp$ decays
Study of charm mixing and CP violation with $D^0\to K^\pmπ^\mpπ^\pmπ^\mp$ decays Open
A study of charm mixing and CP violation in $D^0\to K^\pmπ^\mpπ^\pmπ^\mp$ decays is performed using data collected by the LHCb experiment in proton-proton collisions from 2015 to 2018, corresponding to an integrated luminosity of 6$\text{f…
First observation of the decay and search for pentaquarks in the system Open
View article: Measurement of the $W \to μν_μ$ cross-sections as a function of the muon transverse momentum in $pp$ collisions at 5.02 TeV
Measurement of the $W \to μν_μ$ cross-sections as a function of the muon transverse momentum in $pp$ collisions at 5.02 TeV Open
The $pp \to W^{\pm} (\to μ^{\pm} ν_μ) X$ cross-sections are measured at a proton-proton centre-of-mass energy $\sqrt{s} = 5.02$ TeV using a dataset corresponding to an integrated luminosity of 100 pb$^{-1}$ recorded by the LHCb experiment.…
View article: First evidence of $CP$ violation in beauty baryon to charmonium decays
First evidence of $CP$ violation in beauty baryon to charmonium decays Open
A study of the difference in the $CP$ asymmetries between $Λ^0_b \rightarrow J / ψp π^-$ and $Λ^0_b \rightarrow J / ψp K^-$ decays, $Δ{\cal A}_{CP}$, is performed using proton-proton collision data collected by the LHCb experiment in the y…
View article: Observation of $B_c^+ \to D h^+ h^-$ decays
Observation of $B_c^+ \to D h^+ h^-$ decays Open
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 experiment corresponding to an integrated luminosity of $9~\…
View article: Measurement of the $$ {\varOmega}_c^0 $$ and $$ {\Xi}_c^0 $$ baryon lifetimes using hadronic b-baryon decays
Measurement of the $$ {\varOmega}_c^0 $$ and $$ {\Xi}_c^0 $$ baryon lifetimes using hadronic b-baryon decays Open
A bstract The lifetimes of the $$ {\varOmega}_c^0 $$ and $$ {\Xi}_c^0 $$ baryons are measured using a pp collision dataset collected by the LHCb experiment, corresponding to an integrated luminosity of 9 fb − 1 . The charm baryon…
View article: A model-independent measurement of the CKM angle $γ$ in the decays $B^\pm\to[K^+K^-π^+π^-]_D h^\pm$ and $B^\pm\to[π^+π^-π^+π^-]_D h^\pm$ ($h = K, π$)
A model-independent measurement of the CKM angle $γ$ in the decays $B^\pm\to[K^+K^-π^+π^-]_D h^\pm$ and $B^\pm\to[π^+π^-π^+π^-]_D h^\pm$ ($h = K, π$) Open
A model-independent determination of the CKM angle $γ$ is presented, using the $B^\pm\to[K^+K^-π^+π^-]_D h^\pm$ and $B^\pm\to[π^+π^-π^+π^-]_D h^\pm$ decays, with $h=K,π$. This measurement is the first phase-space-binned study of these deca…
View article: Measurement of the branching fraction of the $Λ_b^0\to J/ψΛ$ decay and isospin asymmetry of $B\to J/ψK$ decays
Measurement of the branching fraction of the $Λ_b^0\to J/ψΛ$ decay and isospin asymmetry of $B\to J/ψK$ decays Open
This paper describes a measurement of the $Λ_b^0\to J/ψΛ$ branching fraction using data collected with the LHCb experiment in proton-proton collisions from 2016 to 2018. The dataset corresponds to an integrated luminosity of 5.4$\,\text{fb…
View article: Unveiling the shape of the $^{20}$Ne nucleus by measuring the flow coefficients with cumulants in PbNe and PbAr collisions at $\sqrt{s_{NN}} = 70.9$ GeV
Unveiling the shape of the $^{20}$Ne nucleus by measuring the flow coefficients with cumulants in PbNe and PbAr collisions at $\sqrt{s_{NN}} = 70.9$ GeV Open
The anisotropic flow coefficients $v_n$ quantify the collective medium response to the initial spatial anisotropy of the overlapping region in ion collisions and serve as sensitive probes of both the medium properties and shape of nuclear …
View article: First measurement of <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si10.svg"> <mml:mi>b</mml:mi> </mml:math> -jet mass with and without grooming
First measurement of -jet mass with and without grooming Open
International audience
View article: Measurement of the Lund plane for light- and beauty-quark jets
Measurement of the Lund plane for light- and beauty-quark jets Open
The substructure of jets in quantum chromodynamics (QCD) has garnered significant attention with the advent of infrared- and collinear-safe clustering algorithms and observables. A key question emerging from these studies is how in-jet emi…
View article: Amplitude analysis of $B^0 \rightarrow η_c(1S) K^+ π^- $ decays
Amplitude analysis of $B^0 \rightarrow η_c(1S) K^+ π^- $ decays Open
An amplitude analysis of the $B^0 \rightarrow η_{c}(1S) K^+ π^- $ decays with $η_{c}(1S) \to p \bar{p}$ is performed using a sample corresponding to an integrated luminosity of 9$\text{fb}^{-1}$ of $pp$ collision data collected by the LHCb…
View article: Precision measurement of the <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msubsup><mml:mi mathvariant="normal">Ξ</mml:mi><mml:mi>b</mml:mi><mml:mn>0</mml:mn></mml:msubsup></mml:math> baryon lifetime
Precision measurement of the baryon lifetime Open
A sample of pp collision data, corresponding to an integrated luminosity of 5.4 fb−1 and collected by the LHCb experiment during LHC Run 2, is used to measure the ratio of the lifetime of the Ξb0 baryon to that of the Λb0 baryon, rτ≡τΞb0/…