C. Hasse

activity

20102024

most citedObservation of a narrow pentaquark state,

P_{c} (4312)^{+}

, and of two-peak structure of the

P_{c} (4450)^{+}

738 citations · 10.1k across the 238 of their papers we have counts for

collaborators

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235 papers · 1 filter

hep-ex2024

Fast Inclusive Flavour Tagging at LHCb

Claire Prouve, Niklas Nolte, Christoph Hasse

The task of identifying B meson flavor at the primary interaction point in the LHCb detector is crucial for measurements of mixing and time-dependent CP violation. Flavour tagging…

hep-ex2024★ 8 cited

Search for prompt production of pentaquarks in charm hadron final states

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1093

A search for hidden-charm pentaquark states decaying to a range of $Σ_{c} D ˉ$ and $Λ_{c} D ˉ$ final states, as well as doubly-charmed pentaquark states to $Σ_{c} D$ and $Λ_{c…

hep-ex2024★ 1 cited

Amplitude analysis of the $Λ_{b}^{0} \to p K^{-} γ$ decay

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1088

The resonant structure of the radiative decay $Λ_{b}^{0} \to p K^{-} γ$ in the region of proton-kaon invariant-mass up to 2.5 GeV $/ c^{2}$ is studied using proton-proton collision data recorde…

hep-ex2024★ 14 cited

Modification of $χ_{c 1}$ (3872) and $ψ$ (2 $S$ ) production in $p$ Pb collisions at $s_{N N} = 8.16$ TeV

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1085

The LHCb collaboration measures production of the exotic hadron $χ_{c 1}$ (3872) in proton-nucleus collisions for the first time. Comparison with the charmonium state $ψ$ (2 $S$ ) sugge…

hep-ex2024★ 2 cited

Measurements of the branching fraction ratio $B (ϕ \to μ^{+} μ^{-}) / B (ϕ \to e^{+} e^{-})$ with charm meson decays

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1083

Measurements of the branching fraction ratio $B (ϕ \to μ^{+} μ^{-}) / B (ϕ \to e^{+} e^{-})$ with $D_{s}^{+} \to π^{+} ϕ$ and $D^{+} \to π^{+} ϕ$ decays, denoted $R_{ϕ π}^{s}$ an…

hep-ex2024★ 5 cited

Prompt and nonprompt $ψ (2 S)$ production in $p$ Pb collisions at $s_{N N} = 8.16$ TeV

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1082

The production of $ψ (2 S)$ mesons in proton-lead collisions at a centre-of-mass energy per nucleon pair of $s_{N N} = 8.16$ TeV is studied with the LHCb detector using data corr…

hep-ex2023★ 6 cited

Multiplicity dependence of $σ_{ψ (2 S)} / σ_{J / ψ}$ in $pp$ collisions at $s = 13$ TeV

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1087

The ratio of production cross-sections of $ψ (2 S)$ over $J / ψ$ mesons as a function of charged-particle multiplicity in proton-proton collisions at a centre-of-mass energy $\sqrt{s}=…

hep-ex2023★ 15 cited

Determination of short- and long-distance contributions in $B^{0} \to K^{* 0} μ^{+} μ^{-}$ decays

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1082

An amplitude analysis of the $B^{0} \to K^{* 0} μ^{+} μ^{-}$ decay is presented. The analysis is based on data collected by the LHCb experiment from proton-proton collisions at $\sqrt{s} =…

hep-ex2023★ 9 cited

Fraction of $χ_{c}$ decays in prompt $J / ψ$ production measured in pPb collisions at $s_{N N} = 8.16$ TeV

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1081

The fraction of $χ_{c 1}$ and $χ_{c 2}$ decays in the prompt $J / ψ$ yield, $F_{χc} = σ_{χ_{c} \to J / ψ} / σ_{J / ψ}$ , is measured by the LHCb detector in pPb collisions at $s_{N N} = 8.16$ …

hep-ex2023★ 3 cited

Measurement of associated $J / ψ$ - $ψ (2 S)$ production cross-section in $pp$ collisions at $s = 13$ TeV

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1080

The cross-section of associated $J / ψ$ - $ψ (2 S)$ production in proton-proton collisions at a centre-of-mass energy of $s = 13$ TeV is measured using a data sample corresponding t…

hep-ex2023★ 4 cited

Observation of $Λ_{b}^{0} \to Λ_{c}^{+} D ˉ^{() 0} K^{-}$ and $Λ_{b}^{0} \to Λ_{c}^{+} D_{s}^{-}$ decays

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1081

The decays $Λ_{b}^{0} \to Λ_{c}^{+} D ˉ^{(*) 0} K^{-}$ and $Λ_{b}^{0} \to Λ_{c}^{+} D_{s}^{*-}$ are observed for the first time, in proton-proton collision data at $s = 13$ TeV corresponding to a…

hep-ex2023★ 8 cited

Measurement of $J / ψ$ -pair production in $pp$ collisions at $s = 13$ TeV and study of gluon transverse-momentum dependent PDFs

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1080

The production cross-section of $J / ψ$ pairs in proton-proton collisions at a centre-of-mass energy of $s = 13$ TeV is measured using a data sample corresponding to an integrat…

hep-ex2023★ 1 cited

A model-independent measurement of the CKM angle $γ$ in partially reconstructed $B^{\pm} \to D^{*} h^{\pm}$ decays with $D \to K_{S}^{0} h^{+} h^{-}$ $(h = π, K)$

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1081

A measurement of $C P$ -violating observables in $B^{\pm} \to D^{*} K^{\pm}$ and $B^{\pm} \to D^{*} π^{\pm}$ decays is made where the photon or neutral pion from the $D^{*} \to D γ$ …

hep-ex2023★ 10 cited

Observation of strangeness enhancement with charmed mesons in high-multiplicity $p Pb$ collisions at $s_{NN} = 8.16$ TeV

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1088

The production of prompt $D_{s}^{+}$ and $D^{+}$ mesons is measured by the LHCb experiment in proton-lead ( $p Pb$ ) collisions in both the forward ( $1.5 < y^{*} < 4.0$ ) and backward (…

hep-ex2023

Observation of $Ξ_{b}^{0} \to Ξ_{c}^{+} D_{s}^{-}$ and $Ξ_{b}^{-} \to Ξ_{c}^{0} D_{s}^{-}$ decays

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1090

The $Ξ_{b}^{0} \to Ξ_{c}^{+} D_{s}^{-}$ and $Ξ_{b}^{-} \to Ξ_{c}^{0} D_{s}^{-}$ decays are observed for the first time using proton-proton collision data collected by the LHCb experiment a…

hep-ex2023★ 1 cited

Search for $CP$ violation in the phase space of $D^{0} \to K_{S}^{0} K^{\pm} π^{\mp}$ decays with the energy test

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1091

A search for $CP$ violation in $D^{0} \to K_{S}^{0} K^{+} π^{-}$ and $D^{0} \to K_{S}^{0} K^{-} π^{+}$ decays is reported. The search is performed using…

hep-ex2023★ 2 cited

A measurement of $Δ Γ_{s}$

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1081

Using a dataset corresponding to $9 fb^{- 1}$ of integrated luminosity collected with the LHCb detector between 2011 and 2018 in proton-proton collisions, the decay-time di…

hep-ex2023★ 21 cited

Enhanced production of $Λ_{b}^{0}$ baryons in high-multiplicity $pp$ collisions at $s = 13$ TeV

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1085

The production rate of $Λ_{b}^{0}$ baryons relative to $B^{0}$ mesons in $pp$ collisions at a center-of-mass energy $s = 13$ TeV is measured by the LHCb experiment. The rati…

hep-ex2023★ 4 cited

Helium identification with LHCb

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1082

The identification of helium nuclei at LHCb is achieved using a method based on measurements of ionisation losses in the silicon sensors and timing measurements in the Outer Tracke…

hep-ex2023★ 1 cited

Measurement of the CKM angle $γ$ using the $B^{\pm} \to D^{*} h^{\pm}$ channels

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1082

A measurement of the $C P$ -violating observables from $B^{\pm} \to D^{*} K^{\pm}$ and $B^{\pm} \to D^{*} π^{\pm}$ decays is presented, where $D^{*} (D)$ is an admixture of…

hep-ex2023★ 8 cited

Measurement of prompt $D^{+}$ and $D_{s}^{+}$ production in $p Pb$ collisions at $s_{NN} = 5.02$ TeV

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1046

The production of prompt $D^{+}$ and $D_{s}^{+}$ mesons is studied in proton-lead collisions at a centre-of-mass energy of $s_{NN} = 5.02$ TeV. The data sample correspo…

hep-ex2023★ 2 cited

Measurement of the $Z$ boson production cross-section in $pp$ collisions at $s = 5.02$ TeV

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1080

The first measurement of the $Z$ boson production cross-section at centre-of-mass energy $s = 5.02$ TeV in the forward region is reported, using $pp$ collision data collect…

hep-ex2023★ 5 cited

Observation of Cabibbo-Suppressed Two-Body Hadronic Decays and Precision Mass Measurement of the $Ω_{c}^{0}$ Baryon

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1082

The first observation of the singly Cabibbo-suppressed $Ω_{c}^{0} \to Ω^{-} K^{+}$ and $Ω_{c}^{0} \to Ξ^{-} π^{+}$ decays is reported, using proton-proton collision data at a center-of-m…

hep-ex2023★ 3 cited

A search for rare $B \to D μ^{+} μ^{-}$ decays

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1046

A search for rare $B \to D μ^{+} μ^{-}$ decays is performed using proton-proton collision data collected by the LHCb experiment, corresponding to an integrated luminosity of 9…

Fast Inclusive Flavour Tagging at LHCb

Search for prompt production of pentaquarks in charm hadron final states

Amplitude analysis of the Λb0​→pK−γ decay

Modification of χc1​(3872) and ψ(2S) production in pPb collisions at sNN​​=8.16 TeV

Measurements of the branching fraction ratio B(ϕ→μ+μ−)/B(ϕ→e+e−) with charm meson decays

Prompt and nonprompt ψ(2S) production in pPb collisions at sNN​​=8.16 TeV

Multiplicity dependence of σψ(2S)​/σJ/ψ​ in pp collisions at s​=13 TeV

Determination of short- and long-distance contributions in B0→K∗0μ+μ− decays

Fraction of χc​ decays in prompt J/ψ production measured in pPb collisions at sNN​​=8.16 TeV

Measurement of associated J/ψ-ψ(2S) production cross-section in pp collisions at s​=13 TeV

Observation of Λb0​→Λc+​Dˉ(∗)0K− and Λb0​→Λc+​Ds∗−​ decays

Measurement of J/ψ-pair production in pp collisions at s​=13 TeV and study of gluon transverse-momentum dependent PDFs

A model-independent measurement of the CKM angle γ in partially reconstructed B±→D∗h± decays with D→KS0​h+h− (h=π,K)

Observation of strangeness enhancement with charmed mesons in high-multiplicity pPb collisions at sNN​​=8.16TeV

Observation of Ξb0​→Ξc+​Ds−​ and Ξb−​→Ξc0​Ds−​ decays

Search for CP violation in the phase space of D0→KS0​K±π∓ decays with the energy test

A measurement of ΔΓs​

Enhanced production of Λb0​ baryons in high-multiplicity pp collisions at s​=13 TeV

Helium identification with LHCb

Measurement of the CKM angle γ using the B±→D∗h± channels

Measurement of prompt D+ and Ds+​ production in pPb collisions at sNN​​=5.02TeV

Measurement of the Z boson production cross-section in pp collisions at s​=5.02 TeV

Observation of Cabibbo-Suppressed Two-Body Hadronic Decays and Precision Mass Measurement of the Ωc0​ Baryon

A search for rare B→Dμ+μ− decays

Amplitude analysis of the $Λ_{b}^{0} \to p K^{-} γ$ decay

Modification of $χ_{c 1}$ (3872) and $ψ$ (2 $S$ ) production in $p$ Pb collisions at $s_{N N} = 8.16$ TeV

Measurements of the branching fraction ratio $B (ϕ \to μ^{+} μ^{-}) / B (ϕ \to e^{+} e^{-})$ with charm meson decays

Prompt and nonprompt $ψ (2 S)$ production in $p$ Pb collisions at $s_{N N} = 8.16$ TeV

Multiplicity dependence of $σ_{ψ (2 S)} / σ_{J / ψ}$ in $pp$ collisions at $s = 13$ TeV

Determination of short- and long-distance contributions in $B^{0} \to K^{* 0} μ^{+} μ^{-}$ decays

Fraction of $χ_{c}$ decays in prompt $J / ψ$ production measured in pPb collisions at $s_{N N} = 8.16$ TeV

Measurement of associated $J / ψ$ - $ψ (2 S)$ production cross-section in $pp$ collisions at $s = 13$ TeV

Observation of $Λ_{b}^{0} \to Λ_{c}^{+} D ˉ^{() 0} K^{-}$ and $Λ_{b}^{0} \to Λ_{c}^{+} D_{s}^{-}$ decays

Measurement of $J / ψ$ -pair production in $pp$ collisions at $s = 13$ TeV and study of gluon transverse-momentum dependent PDFs

A model-independent measurement of the CKM angle $γ$ in partially reconstructed $B^{\pm} \to D^{*} h^{\pm}$ decays with $D \to K_{S}^{0} h^{+} h^{-}$ $(h = π, K)$

Observation of strangeness enhancement with charmed mesons in high-multiplicity $p Pb$ collisions at $s_{NN} = 8.16$ TeV

Observation of $Ξ_{b}^{0} \to Ξ_{c}^{+} D_{s}^{-}$ and $Ξ_{b}^{-} \to Ξ_{c}^{0} D_{s}^{-}$ decays

Search for $CP$ violation in the phase space of $D^{0} \to K_{S}^{0} K^{\pm} π^{\mp}$ decays with the energy test

A measurement of $Δ Γ_{s}$

Enhanced production of $Λ_{b}^{0}$ baryons in high-multiplicity $pp$ collisions at $s = 13$ TeV

Measurement of the CKM angle $γ$ using the $B^{\pm} \to D^{*} h^{\pm}$ channels

Measurement of prompt $D^{+}$ and $D_{s}^{+}$ production in $p Pb$ collisions at $s_{NN} = 5.02$ TeV

Measurement of the $Z$ boson production cross-section in $pp$ collisions at $s = 5.02$ TeV

Observation of Cabibbo-Suppressed Two-Body Hadronic Decays and Precision Mass Measurement of the $Ω_{c}^{0}$ Baryon

A search for rare $B \to D μ^{+} μ^{-}$ decays