R. Newcombe

activity

20182024

most citedThe LHCb upgrade I

78 citations · 792 across the 38 of their papers we have counts for

collaborators

Showing hep-exShow all

38 papers · 1 filter

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★ 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★ 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★ 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★ 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★ 11 cited

Measurement of the $D^{}$ longitudinal polarization in $B^{0} \to D^{-} τ^{+} ν_{τ}$ decays

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

The longitudinal polarization fraction of the $D^{*}$ meson is measured in $B^{0} \to D^{*-} τ^{+} ν_{τ}$ decays, where the $τ$ lepton decays to three charged pions and a neutrino, using…

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★ 19 cited

Measurement of CP violation in $B^{0} \to ψ (\to ℓ^{+} ℓ^{-}) K_{S}^{0} (\to π^{+} π^{-})$ decays

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

A measurement of time-dependent CP violation in the decays of $B^{0}$ and $B^{0}$ mesons to the final states $J / ψ (\to μ^{+} μ^{-}) K_{S}^{0}$ , $ψ (2 S) (\to μ^{+} μ^{-}) K_{S}^{0}$ and $J/ψ(\to e^+e…

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★ 20 cited

Observation of new baryons in the $Ξ_{b}^{-} π^{+} π^{-}$ and $Ξ_{b}^{0} π^{+} π^{-}$ systems

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1052

The first observation and study of two new baryonic structures in the final state $Ξ_{b}^{0} π^{+} π^{-}$ and the confirmation of the $Ξ_{b} (6100)^{-}$ state in the $Ξ_{b}^{-} π^{+} π^{-}$ decay mode are…

hep-ex2023★ 7 cited

Search for $C P$ violation in the phase space of $D^{0} \to π^{-} π^{+} π^{0}$ decays with the energy test

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

A search for $C P$ violation in $D^{0} \to π^{-} π^{+} π^{0}$ decays is reported, using $pp$ collision data collected by the LHCb experiment from 2015 to 2018 corresponding to an integrated l…

hep-ex2023★ 78 cited

The LHCb upgrade I

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1305

The LHCb upgrade represents a major change of the experiment. The detectors have been almost completely renewed to allow running at an instantaneous luminosity five times larger th…

hep-ex2023★ 5 cited

Measurement of $Ξ_{c}^{+}$ production in $p$ Pb collisions at $s_{N N} = 8.16$ TeV at LHCb

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1048

A study of prompt $Ξ_{c}^{+}$ production in proton-lead collisions is performed with the LHCb experiment at a centre-of-mass energy per nucleon pair of 8.16 TeV in 2016 in $p$ Pb an…

hep-ex2023★ 72 cited

Measurement of the ratios of branching fractions $R (D^{*})$ and $R (D^{0})$

LHCb Collaboration

The ratios of branching fractions $R (D^{*}) \equiv B (B ˉ \to D^{*} τ^{-} ν ˉ_{τ}) / B (B ˉ \to D^{*} μ^{-} ν ˉ_{μ})$ and $\mathcal{R}(D^{0})\equiv\mathca…

hep-ex2022★ 3 cited

First observation and branching fraction measurement of the $Λ_{b}^{0} \to D_{s}^{-} p$ decay

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1048

The first observation of the $Λ_{b}^{0} \to D_{s}^{-} p$ decay is presented using proton-proton collision data collected by the LHCb experiment at a centre-of-mass energy of ${\sqrt{s}=13 \…

hep-ex2022★ 11 cited

Measurement of the charm mixing parameter $y_{C P} - y_{C P}^{K π}$ using two-body $D^{0}$ meson decays

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +995

A measurement of the ratios of the effective decay widths of $D^{0} \to π^{-} π^{+}$ and $D^{0} \to K^{-} K^{+}$ decays over that of $D^{0} \to K^{-} π^{+}$ decays is performed with the LHCb experiment…

hep-ex2021★ 6 cited

Identification of charm jets at LHCb

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +994

The identification of charm jets is achieved at LHCb for data collected in 2015-2018 using a method based on the properties of displaced vertices reconstructed and matched with jet…

hep-ex2021★ 14 cited

Study of the $B_{c}^{+}$ decays into charmonia and three light hadrons

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +996

Using proton-proton collision data, corresponding to an integrated luminosity of $9 f b^{- 1}$ collected with the LHCb detector, seven decay modes of the $B_{c}^{+}$ meson into a $J / ψ$ or…

hep-ex2021★ 7 cited

Searches for rare $B_{s}^{0}$ and $B^{0}$ decays into four muons

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +997

Searches for rare $B_{s}^{0}$ and $B^{0}$ decays into four muons are performed using proton-proton collision data recorded by the LHCb experiment, corresponding to an integrated luminosi…

hep-ex2021★ 1 cited

Search for massive long-lived particles decaying semileptonically at sqrt(s)=13 TeV

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +996

A search is performed for massive long-lived particles (LLP) decaying semileptonically into a muon and two quarks. Two kinds of LLP production processes were considered. In the fir…

hep-ex2021★ 32 cited

Observation of two new excited $Ξ_{b}^{0}$ states decaying to $Λ_{b}^{0} K^{-} π^{+}$

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +995

Two narrow resonant states are observed in the $Λ_{b}^{0} K^{-} π^{+}$ mass spectrum using a data sample of proton-proton collisions at a center-of-mass energy of 13 $TeV$ , collect…

hep-ex2021★ 23 cited

Measurement of $χ_{c 1} (3872)$ production in proton-proton collisions at $s = 8$ and $13$ TeV

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +997

The production cross-section of the $χ_{c 1} (3872)$ state relative to the $ψ (2 S)$ meson is measured using proton-proton collision data collected with the LHCb experiment at centre-o…

hep-ex2021★ 25 cited

Search for the doubly charmed baryon $Ξ_{cc}^{+}$ in the $Ξ_{c}^{+} π^{-} π^{+}$ final state

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +992

A search for the doubly charmed baryon $Ξ_{cc}^{+}$ is performed in the $Ξ_{c}^{+} π^{-} π^{+}$ invariant-mass spectrum, where the $Ξ_{c}^{+}$ baryon is reconstructed in t…

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

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

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

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

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

Measurement of the D∗ longitudinal polarization in B0→D∗−τ+ντ​ decays

Helium identification with LHCb

Measurement of CP violation in B0→ψ(→ℓ+ℓ−)KS0​(→π+π−) decays

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

Observation of new baryons in the Ξb−​π+π− and Ξb0​π+π− systems

Search for CP violation in the phase space of D0→π−π+π0 decays with the energy test

The LHCb upgrade I

Measurement of Ξc+​ production in pPb collisions at sNN​​=8.16 TeV at LHCb

Measurement of the ratios of branching fractions R(D∗) and R(D0)

First observation and branching fraction measurement of the Λb0​→Ds−​p decay

Measurement of the charm mixing parameter yCP​−yCPKπ​ using two-body D0 meson decays

Identification of charm jets at LHCb

Study of the Bc+​ decays into charmonia and three light hadrons

Searches for rare Bs0​ and B0 decays into four muons

Search for massive long-lived particles decaying semileptonically at sqrt(s)=13 TeV

Observation of two new excited Ξb0​ states decaying to Λb0​K−π+

Measurement of χc1​(3872) production in proton-proton collisions at s​=8 and 13 TeV

Search for the doubly charmed baryon Ξcc+​ in the Ξc+​π−π+ final state

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

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

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

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

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

Measurement of the $D^{}$ longitudinal polarization in $B^{0} \to D^{-} τ^{+} ν_{τ}$ decays

Measurement of CP violation in $B^{0} \to ψ (\to ℓ^{+} ℓ^{-}) K_{S}^{0} (\to π^{+} π^{-})$ decays

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

Observation of new baryons in the $Ξ_{b}^{-} π^{+} π^{-}$ and $Ξ_{b}^{0} π^{+} π^{-}$ systems

Search for $C P$ violation in the phase space of $D^{0} \to π^{-} π^{+} π^{0}$ decays with the energy test

Measurement of $Ξ_{c}^{+}$ production in $p$ Pb collisions at $s_{N N} = 8.16$ TeV at LHCb

Measurement of the ratios of branching fractions $R (D^{*})$ and $R (D^{0})$

First observation and branching fraction measurement of the $Λ_{b}^{0} \to D_{s}^{-} p$ decay

Measurement of the charm mixing parameter $y_{C P} - y_{C P}^{K π}$ using two-body $D^{0}$ meson decays

Study of the $B_{c}^{+}$ decays into charmonia and three light hadrons

Searches for rare $B_{s}^{0}$ and $B^{0}$ decays into four muons

Observation of two new excited $Ξ_{b}^{0}$ states decaying to $Λ_{b}^{0} K^{-} π^{+}$

Measurement of $χ_{c 1} (3872)$ production in proton-proton collisions at $s = 8$ and $13$ TeV

Search for the doubly charmed baryon $Ξ_{cc}^{+}$ in the $Ξ_{c}^{+} π^{-} π^{+}$ final state