J. Gooding

physics.ins-det2024★ 3 cited

Study of the rare decay $J / ψ \to μ^{+} μ^{-} μ^{+} μ^{-}$

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1099

The rare electromagnetic $J / ψ \to μ^{+} μ^{-} μ^{+} μ^{-}$ decay is observed with a significance greatly exceeding the discovery threshold, using proton-proton collision data collected by the…

hep-ex2024★ 2 cited

Observation of muonic Dalitz decays of $χ_{b}$ mesons and precise spectroscopy of hidden-beauty states

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1117

The decays of the $χ_{b 1} (1 P)$ , $χ_{b 2} (1 P)$ , $χ_{b 1} (2 P)$ and $χ_{b 2} (2 P)$ mesons into the $Υ (1 S) μ^{+} μ^{-}$ final state are observed with a high significance using proton-proton coll…

Summary of the trigger systems of the Large Hadron Collider experiments ALICE, ATLAS, CMS and LHCb

Johannes Albrecht, Leon Bozianu, Lukas Calefice +11

In modern High Energy Physics (HEP) experiments, triggers perform the important task of selecting, in real time, the data to be recorded and saved for physics analyses. As a result…

Observation of exotic $J / ψ ϕ$ resonant structure in diffractive processes in proton-proton collisions

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1072

The first study of $J / ψ ϕ$ production in diffractive processes in proton-proton collisions is presented. The study is based on an LHCb dataset recorded at centre-of-mass energy of 1…

hep-ex2024★ 4 cited

Study of charmonium production via the decay to $p p ˉ$ at $s = 13 T e V$

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1063

Charmonium production cross-section in proton-proton collisions is measured at the centre-of-mass energy $s = 13 T e V$ using decays to $p p ˉ$ final state. The study is per…

Amplitude analysis of $B^{+} \to ψ (2 S) K^{+} π^{+} π^{-}$ decays

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1096

The first full amplitude analysis of $B^{+} \to ψ (2 S) K^{+} π^{+} π^{-}$ decays is performed using proton-proton collision data corresponding to an integrated luminosity of $9\,\text{fb}^{…

hep-ex2024★ 6 cited

Search for the rare decay of charmed baryon $Λ_{c}^{+}$ into $p μ^{+} μ^{-}$ final state

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1066

A search for the nonresonant $Λ_{c}^{+} \to p μ^{+} μ^{-}$ decay is performed using proton-proton collision data recorded at a centre-of-mass energy of 13 TeV by the LHCb experiment, corre…

hep-ex2024★ 13 cited

Probing the nature of the $χ_{c 1} (3872)$ state using radiative decays

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1097

The radiative decays $χ_{c 1} (3872) \to ψ (2 S) γ$ and $χ_{c 1} (3872) \to J / ψ γ$ are used to probe the~nature of the~ $χ_{c 1} (3872)$ state using proton-proton collision data…

Precision measurement of the $Ξ_{b}^{-}$ baryon lifetime

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1067

A sample of $pp$ collision data, corresponding to an integrated luminosity of 5.5 fb $^{- 1}$ and collected by the LHCb experiment during LHC Run 2, is used to measure the ratio of t…

hep-ex2024★ 14 cited

Measurement of the branching fraction ratios $R (D^{+})$ and $R (D^{*+})$ using muonic $τ$ decays

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1066

The branching fraction ratios of $B^{0} \to D^{+} τ^{-} ν_{τ}$ and $B^{0} \to D^{*+} τ^{-} ν_{τ}$ decays are measured with respect to their muonic counterparts,…

Observation of new charmonium(-like) states in $B^{+} \to D^{*\pm} D^{\mp} K^{+}$ decays

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1066

A study of resonant structures in $B^{+} \to D^{*+} D^{-} K^{+}$ and $B^{+} \to D^{*-} D^{+} K^{+}$ decays is performed, using proton-proton collision data at cen…

Amplitude analysis of the radiative decay $B_{s}^{0} \to K^{+} K^{-} γ$

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1064

A search for radiative decay of $B_{s}^{0}$ mesons to orbitally excited $K^{+} K^{-}$ states is performed using proton proton collisions recorded by the \mbox{LHCb}\xspace experiment, corre…

Comprehensive analysis of local and nonlocal amplitudes in the $B^{0} \to K^{* 0} μ^{+} μ^{-}$ decay

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1073

A comprehensive study of the local and nonlocal amplitudes contributing to the decay $B^{0} \to K^{* 0} (\to K^{+} π^{-}) μ^{+} μ^{-}$ is performed by analysing the phase-space distributi…

hep-ex2024★ 3 cited

Search for the lepton-flavor violating decay $B_{s}^{0} \to ϕ μ^{\pm} τ^{\mp}$

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1065

A search for the lepton-flavor violating decays $B_{s}^{0} \to ϕ μ^{\pm} τ^{\mp}$ is presented, using a sample of proton-proton collisions at center-of-mass energies of 7, 8, and 13 TeV, colle…

Study of $b$ -hadron decays to $Λ_{c}^{+} h^{-} h^{' -}$ final states

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1075

Decays of $Ξ_{b}^{-}$ and $Ω_{b}^{-}$ baryons to $Λ_{c}^{+} h^{-} h^{' -}$ final states, with $h^{-} h^{' -}$ being $π^{-} π^{-}$ , $K^{-} π^{-}$ and $K^{-} K^{-}$ meson pairs…

hep-ex2024★ 7 cited

Transverse polarization measurement of $Λ$ hyperons in $p$ Ne collisions at $s_{N N}$ = 68.4 GeV with the $\mbox{LHCb}$ detector

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1068

A measurement of the transverse polarization of the $Λ$ and $Λ ˉ$ hyperons in $p$ Ne fixed-target collisions at $s_{N N}$ = 68.4 GeV is presented using data collected by the…

hep-ex2024★ 7 cited

Search for time-dependent $C P$ violation in $D^{0} \to π^{+} π^{-} π^{0}$ decays

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1067

A measurement of time-dependent $C P$ violation in $D^{0} \to π^{+} π^{-} π^{0}$ decays using a $pp$ collision data sample collected by the LHCb experiment in 2012 and from 2015 to…

hep-ex2024★ 2 cited

Amplitude analysis and branching fraction measurement of $B^{+} \to D^{*-} D_{s}^{+} π^{+}$ decays

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1060

The decays of the $B^{+}$ meson to the final state $D^{*-} D_{s}^{+} π^{+}$ are studied in proton-proton collision data collected with the LHCb detector at centre-of-mass energies of…

Analysis Facilities White Paper

D. Ciangottini, A. Forti, L. Heinrich +63

This white paper presents the current status of the R&D for Analysis Facilities (AFs) and attempts to summarize the views on the future direction of these facilities. These views h…

First observation of $Λ_{b}^{0} \to Σ_{c}^{() ++} D^{() -} K^{-}$ decays

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1071

The four decays, $Λ_{b}^{0} \to Σ_{c}^{(*) ++} D^{(*) -} K^{-}$ , are observed for the first time using proton-proton collision data collected with the LHCb detector at a centre…

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…

Search for the $B_{s}^{0} \to μ^{+} μ^{-} γ$ decay

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1072

A search for the fully reconstructed $B_{s}^{0} \to μ^{+} μ^{-} γ$ decay is performed at the LHCb experiment using proton-proton collisions at $s = 13$ \,TeV corresponding to an…

Tracking of charged particles with nanosecond lifetimes at LHCb

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1063

A method is presented to reconstruct charged particles with lifetimes between 10 ps and 10 ns, which considers a combination of their decay products and the partial tracks created…