Y. Fan

activity

20102026

J / ψ Λ

structure and observation of excited

Ξ^{-}

states in the

Ξ_{b}^{-} \to J / ψ Λ K^{-}

decay

268 citations · 1.5k across the 70 of their papers we have counts for

collaborators

Showing 2024Show all

15 papers · 1 filter

hep-ex2024★ 5 cited

Search for $D^{0}$ meson decays to $π^{+} π^{-} e^{+} e^{-}$ and $K^{+} K^{-} e^{+} e^{-}$ final states

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1130

A search for $D^{0}$ meson decays to the $π^{+} π^{-} e^{+} e^{-}$ and $K^{+} K^{-} e^{+} e^{-}$ final states is reported using a sample of proton-proton collisions collected by the LHCb experiment at a c…

hep-ex2024★ 2 cited

Measurement of $ϕ (1020)$ meson production in fixed-target $p$ Ne collisions at $s_{N N}$ = 68.5 GeV

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1132

The first measurement of $ϕ (1020)$ meson production in fixed-target $p$ Ne collisions at $s_{N N} = 68.5$ GeV is presented. The $ϕ (1020)$ mesons are reconstructed in their $K^{+…

hep-ex2024

Search for $B_{(s)}^{* 0} \to μ^{+} μ^{-}$ in $B_{c}^{+} \to π^{+} μ^{+} μ^{-}$ decays

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1116

A search for the very rare $B^{* 0} \to μ^{+} μ^{-}$ and $B_{s}^{* 0} \to μ^{+} μ^{-}$ decays is conducted by analysing the $B_{c}^{+} \to π^{+} μ^{+} μ^{-}$ process. The analysis uses proton-proton collision…

hep-ex2024★ 6 cited

First determination of the spin-parity of $Ξ_{c} (3055)^{+, 0}$ baryons

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1112

The $Ξ_{b}^{0 (-)} \to Ξ_{c} (3055)^{+ (0)} (\to D^{+ (0)} Λ) π^{-}$ decay chains are observed, and the spin-parity of $Ξ_{c} (3055)^{+ (0)}$ baryons is determined for the first time. The m…

hep-ex2024

Measurement of $\itΛ_\it{b}^0$, $\itΛ_\it{c}^+$ and $Λ$ decay parameters using $\itΛ_\it{b}^0 \to \itΛ_\it{c}^+ h^-$ decays

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1106

A comprehensive study of the angular distributions in the bottom-baryon decays $Λ_{b}^{0} \to Λ_{c}^{+} h^{-} (h = π, K)$ , followed by $Λ_{c}^{+} \to Λ h^{+}$ with $\itΛ\to \it{p} π^…

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…

hep-ex2024★ 5 cited

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…

hep-ex2024★ 1 cited

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

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★ 5 cited

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★ 1 cited

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…

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★ 9 cited

Observation of the $B_{c}^{+} \to J / ψ π^{+} π^{0}$ decay

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

The first observation of the $B_{c}^{+} \to J / ψ π^{+} π^{0}$ decay is reported with high significance using proton-proton collision data, corresponding to an integrated luminosity of 9fb$^{…

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…

Search for D0 meson decays to π+π−e+e− and K+K−e+e− final states

Measurement of ϕ(1020) meson production in fixed-target pNe collisions at sNN​​ = 68.5 GeV

Search for B(s)∗0​→μ+μ− in Bc+​→π+μ+μ− decays

First determination of the spin-parity of Ξc​(3055)+,0 baryons

Measurement of $\itΛ_\it{b}^0$, $\itΛ_\it{c}^+$ and Λ decay parameters using $\itΛ_\it{b}^0 \to \itΛ_\it{c}^+ h^-$ decays

Observation of muonic Dalitz decays of χb​ mesons and precise spectroscopy of hidden-beauty states

Observation of exotic J/ψϕ resonant structure in diffractive processes in proton-proton collisions

Study of charmonium production via the decay to ppˉ​ at s​=13TeV

Precision measurement of the Ξb−​ baryon lifetime

Comprehensive analysis of local and nonlocal amplitudes in the B0→K∗0μ+μ− decay

First observation of Λb0​→Σc(∗)++​D(∗)−K− decays

Tracking of charged particles with nanosecond lifetimes at LHCb

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

Observation of the Bc+​→J/ψπ+π0 decay

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

Search for $D^{0}$ meson decays to $π^{+} π^{-} e^{+} e^{-}$ and $K^{+} K^{-} e^{+} e^{-}$ final states

Measurement of $ϕ (1020)$ meson production in fixed-target $p$ Ne collisions at $s_{N N}$ = 68.5 GeV

Search for $B_{(s)}^{* 0} \to μ^{+} μ^{-}$ in $B_{c}^{+} \to π^{+} μ^{+} μ^{-}$ decays

First determination of the spin-parity of $Ξ_{c} (3055)^{+, 0}$ baryons

Measurement of $\itΛ_\it{b}^0$, $\itΛ_\it{c}^+$ and $Λ$ decay parameters using $\itΛ_\it{b}^0 \to \itΛ_\it{c}^+ h^-$ decays

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

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

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

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

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

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

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

Observation of the $B_{c}^{+} \to J / ψ π^{+} π^{0}$ decay

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