R. Bernet
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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: Inclusive B-meson flavour-tagging algorithm at LHCb
Inclusive B-meson flavour-tagging algorithm at LHCb Open
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
A bstract A time-integrated angular analysis of the decay $$ {B}_s^0\to J/\psi {\overline{K}}^{\ast }{(892)}^0 $$ , with J / ψ → μ + μ − and $$ {\overline{K}}^{\ast }{(892)}^0\to {K}^{-}{\pi}^{+} $$ , is …
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: 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: Observation of a New Charmed Baryon Decaying to <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msubsup><mml:mrow><mml:mi mathvariant="normal">Ξ</mml:mi></mml:mrow><mml:mrow><mml:mi>c</mml:mi></mml:mrow><mml:mrow><mml:mo>+</mml:mo></mml:mrow></mml:msubsup><mml:msup><mml:mrow><mml:mi>π</mml:mi></mml:mrow><mml:mrow><mml:mo>−</mml:mo></mml:mrow></mml:msup><mml:msup><mml:mrow><mml:mi>π</mml:mi></mml:mrow><mml:mrow><mml:mo>+</mml:mo></mml:mrow></mml:msup></mml:mrow></mml:math>
Observation of a New Charmed Baryon Decaying to Open
The Ξc+π−π+ spectrum is investigated using proton-proton collisions at a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 5.4 fb−1, collected by the LHCb experiment during 2016–2018. Four states are observed w…
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: 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
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
The LHCb collaboration presents a novel suite of heavy-flavour jet substructure measurements at forward rapidity in proton-proton collisions at a centre-of-mass energy of s=13TeV. The jet mass is a perturbatively calculable probe of the vi…
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: 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/…
View article: Measurement of branching fractions and $CP$ asymmetries in $\mathitΛ_b^0(\mathitΞ_b^0)\!\to pK_{\mathrm S}^0h^-$ decays
Measurement of branching fractions and $CP$ asymmetries in $\mathitΛ_b^0(\mathitΞ_b^0)\!\to pK_{\mathrm S}^0h^-$ decays Open
A study of $\mathitΛ_b^0$ and $\mathitΞ_b^0$ baryon decays to the final states $pK_{\mathrm S}^0π^-$ and $pK_{\mathrm S}^0K^-$ is performed using $pp$ collision data collected by the LHCb experiment, corresponding to an integrated luminosi…
View article: Three-pion Bose-Einstein correlations measured in proton-proton collisions
Three-pion Bose-Einstein correlations measured in proton-proton collisions Open
View article: Observation of the $${{{\varLambda } ^0_{b}} \!\rightarrow {{J \hspace{-1.66656pt}/\hspace{-1.111pt}\psi }} {{\varXi } ^-} {{K} ^+} }$$ and $${{{{\varXi } ^0_{b}} \!\rightarrow {{J \hspace{-1.66656pt}/\hspace{-1.111pt}\psi }} {{\varXi } ^-} {{\pi } ^+} }}$$ decays
Observation of the $${{{\varLambda } ^0_{b}} \!\rightarrow {{J \hspace{-1.66656pt}/\hspace{-1.111pt}\psi }} {{\varXi } ^-} {{K} ^+} }$$ and $${{{{\varXi } ^0_{b}} \!\rightarrow {{J \hspace{-1.66656pt}/\hspace{-1.111pt}\psi }} {{\varXi } ^-} {{\pi } ^+} }}$$ decays Open
The first observation of the $${{{{\varXi } ^0_{b}} \!\rightarrow {{J \hspace{-1.66656pt}/\hspace{-1.111pt}\psi }} {{\varXi } ^-} {{\pi } ^+} }}$$ decay and the most precise measurement of the branching fraction of the …
View article: Search for the decay $B^0 \rightarrow ϕϕ$
Search for the decay $B^0 \rightarrow ϕϕ$ Open
A search for the decay $B^0 \rightarrow ϕϕ$ 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…
View article: Measurement of the ψ(2S) to J/ψ cross-section ratio as a function of centrality in PbPb collisions at $$ \sqrt{{\textrm{s}}_{\textrm{NN}}} $$ = 5.02 TeV
Measurement of the ψ(2S) to J/ψ cross-section ratio as a function of centrality in PbPb collisions at $$ \sqrt{{\textrm{s}}_{\textrm{NN}}} $$ = 5.02 TeV Open
A bstract The ratio of prompt production cross-sections of ψ (2 S ) and J/ψ mesons in their dimuon final state is measured as a function of centrality, using data collected by the LHCb detector in PbPb collisions at $$ \sqrt{s_{\textrm{NN}…
View article: Search for resonances decaying to photon pairs with masses between 4.9 and 19.4 GeV
Search for resonances decaying to photon pairs with masses between 4.9 and 19.4 GeV Open
A search is presented for axion-like particles (ALPs) with masses between 4.9 and 19.4 GeV decaying to a pair of photons, using proton-proton collisions collected with the LHCb detector during 2018 at a centre-of-mass energy of 13 TeV, cor…
View article: Measurement of the $B^0\rightarrow ρ(770)^{0}γ$ branching fraction
Measurement of the $B^0\rightarrow ρ(770)^{0}γ$ branching fraction Open
The ratio between the branching fractions of the $B^0\rightarrow ρ(770)^{0}γ$ and $B^{0}\rightarrow K^{*}(892)^{0}γ$ decays is measured with proton-proton collision data collected by the LHCb experiment at centre-of-mass energies of 7, 8, …
View article: Improved measurement of $η/ η^{\prime}$ mixing in $B^{0}_{(s)} \rightarrow J/ψη^{(\prime)}$ decays
Improved measurement of $η/ η^{\prime}$ mixing in $B^{0}_{(s)} \rightarrow J/ψη^{(\prime)}$ decays Open
Branching fraction ratios between the decays $B^{0}_{(s)} \rightarrow J/ψη^{(\prime)}$ are measured using proton-proton collision data collected by the LHCb experiment at centre-of-mass energies of $7$, $8$ and $13~\textrm{TeV}$, correspon…
View article: Measurement of the branching fraction ratio RK at large dilepton invariant mass
Measurement of the branching fraction ratio RK at large dilepton invariant mass Open
View article: Observation of charge–parity symmetry breaking in baryon decays
Observation of charge–parity symmetry breaking in baryon decays Open