Ryan Newcombe

activity

20182024

A^{'} \to μ^{+} μ^{-}

decays

267 citations · 2.9k across the 95 of their papers we have counts for

collaborators

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37 papers · 1 filter

hep-ex2022★ 3 cited

Measurement of $Υ$ production in $pp$ collisions at $s = 5 TeV$

LHCb collaboration

The production cross-sections of $Υ$ mesons, namely $Υ (1 S)$ , $Υ (2 S)$ and $Υ (3 S)$ , in $pp$ collisions at $s = 5 TeV$ are measured with a data sample corresponding to an…

hep-ex2022★ 12 cited

Search for rare decays of $D^{0}$ mesons into two muons

LHCb collaboration

A search for the very rare $D^{0} \to μ^{+} μ^{-}$ decay is performed using data collected by the LHCb experiment in proton-proton collisions at $s = 7$ , 8 and $13 TeV$ , corre…

hep-ex2022★ 112 cited

Measurement of lepton universality parameters in $B^{+} \to K^{+} ℓ^{+} ℓ^{-}$ and $B^{0} \to K^{* 0} ℓ^{+} ℓ^{-}$ decays

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1047

A simultaneous analysis of the $B^{+} \to K^{+} ℓ^{+} ℓ^{-}$ and $B^{0} \to K^{* 0} ℓ^{+} ℓ^{-}$ decays is performed to test muon-electron universality in two ranges of the square of the di…

hep-ex2022★ 126 cited

Test of lepton universality in $b \to s ℓ^{+} ℓ^{-}$ decays

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1047

The first simultaneous test of muon-electron universality using $B^{+} \to K^{+} ℓ^{+} ℓ^{-}$ and $B^{0} \to K^{* 0} ℓ^{+} ℓ^{-}$ decays is performed, in two r…

hep-ex2022★ 53 cited

Amplitude analysis of $B^{0} \to D^{0} D_{s}^{+} π^{-}$ and $B^{+} \to D^{-} D_{s}^{+} π^{+}$ decays

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1055

Resonant contributions in $B^{0} \to D^{0} D_{s}^{+} π^{-}$ and $B^{+} \to D^{-} D_{s}^{+} π^{+}$ decays are determined with an amplitude analysis, which is performed both sepa…

hep-ex2022★ 80 cited

First observation of a doubly charged tetraquark and its neutral partner

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1055

A combined amplitude analysis is performed for the decays $B^{0} \to D^{0} D_{s}^{+} π^{-}$ and $B^{+} \to D^{-} D_{s}^{+} π^{+}$ , which are related by isospin symmetry. The an…

hep-ex2022★ 13 cited

$J / ψ$ and $D^{0}$ production in $s_{NN}$ = 68.5 GeV PbNe collisions

LHCb Collaboration

The first measurement of $J / ψ$ and $D^{0}$ production in PbNe collisions by the LHCb experiment in its fixed-target configuration is reported. The production of $J / ψ$ and $D^{0}$ meson…

hep-ex2022★ 10 cited

Charmonium production in $p$ Ne collisions at $s_{NN} = 68.5$ GeV

LHCb Collaboration

The measurement of charmonium states produced in proton-neon ( $p$ Ne) collisions by the LHCb experiment in its fixed-target configuration is presented. The production of $J / ψ$ and $…

hep-ex2022★ 17 cited

Open charm production and asymmetry in $p$ Ne collisions at $s_{NN} =$ 68.5 GeV

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1053

A measurement of $D^{0}$ meson production by the LHCb experiment in its fixed-target configuration is presented. The production of $D^{0}$ mesons is studied with a beam of 2.5 TeV prot…

hep-ex2022★ 9 cited

First observation of the $B^{+} \to D_{s}^{+} D_{s}^{-} K^{+}$ decay

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

The $B^{+} \to D_{s}^{+} D_{s}^{-} K^{+}$ decay is observed for the first time using proton-proton collision data collected by the LHCb detector at centre-of-mass energies of $7$ , $8$ …

hep-ex2022★ 7 cited

Study of the $B^{-} \to Λ_{c}^{+} Λ ˉ_{c}^{-} K^{-}$ decay

LHCb collaboration

The decay $B^{-} \to Λ_{c}^{+} Λ ˉ_{c}^{-} K^{-}$ is studied in proton-proton collisions at a center-of-mass energy of $s = 13$ TeV using data corresponding to an integrated…

hep-ex2022★ 40 cited

Observation of a resonant structure near the $D_{s}^{+} D_{s}^{-}$ threshold in the $B^{+} \to D_{s}^{+} D_{s}^{-} K^{+}$ decay

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

An amplitude analysis of the $B^{+} \to D_{s}^{+} D_{s}^{-} K^{+}$ decay is carried out to study for the first time its intermediate resonant contributions, using proton-proton collision data c…

hep-ex2022★ 4 cited

Measurement of the ratio of branching fractions $B (B_{c}^{+} \to B_{s}^{0} π^{+}) / B (B_{c}^{+} \to J / ψ π^{+})$

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1054

The ratio of branching fractions of $B_{c}^{+} \to B_{s}^{0} π^{+}$ and $B_{c}^{+} \to J / ψ π^{+}$ decays is measured with proton-proton collision data of a centre-of-mass energy of $13 TeV$ .…

hep-ex2022★ 3 cited

Search for the baryon- and lepton-number violating decays $B^{0} \to p μ^{-}$ and $B_{s}^{0} \to p μ^{-}$

LHCb collaboration

A search for the baryon- and lepton-number violating decays $B^{0} \to p μ^{-}$ and $B_{s}^{0} \to p μ^{-}$ is performed at the LHCb experiment using data collected in proton-proton collisions a…

hep-ex2022★ 154 cited

Observation of a $J / ψ Λ$ resonance consistent with a strange pentaquark candidate in $B^{-} \to J / ψ Λ p ˉ$ decays

LHCb collaboration

An amplitude analysis of $B^{-} \to J / ψ Λ p ˉ$ decays is performed using about 4400 signal candidates selected on a data sample of $pp$ collisions recorded at center-of-mass energie…

hep-ex2022★ 6 cited

Measurement of the $Λ_{c}^{+}$ to $D^{0}$ production cross-section ratio in peripheral PbPb collisions

LHCb collaboration

We report on a measurement of the $Λ_{c}^{+}$ to $D^{0}$ production ratio in PbPb collisions at $s_{NN}$ = 5.02 TeV with the LHCb detector in the forward rapidity region $2 <y<…

hep-ex2022★ 14 cited

Search for the lepton-flavour violating decays $B^{0} \to K^{* 0} τ^{\pm} μ^{\mp}$

LHCb collaboration

A first search for the lepton-flavour violating decays $B^{0} \to K^{* 0} τ^{\pm} μ^{\mp}$ is presented. The analysis is performed using a sample of proton-proton collision data, collecte…

hep-ex2022★ 4 cited

Amplitude analysis of the $D_{s}^{+} \to π^{-} π^{+} π^{+}$ decay

LHCb collaboration

A Dalitz plot analysis of the $D_{s}^{+} \to π^{-} π^{+} π^{+}$ decay is presented. The analysis is based on proton-proton collision data recorded by the LHCb experiment at a centre-of-mass…

hep-ex2022★ 8 cited

Measurement of the CKM angle $γ$ with $B^{\pm} \to D [K^{\mp} π^{\pm} π^{\pm} π^{\mp}] h^{\pm}$ decays using a binned phase-space approach

LHCb collaboration

The CKM angle $γ$ is determined from $C P$ -violating observables measured in $B^{\pm} \to D [K^{\mp} π^{\pm} π^{\pm} π^{\mp}] h^{\pm}$ , $(h = K, π)$ decays, where the measurements are performe…

hep-ex2022★ 35 cited

Measurement of the time-integrated $C P$ asymmetry in $D^{0} \to K^{-} K^{+}$ decays

LHCb collaboration

The time-integrated $C P$ asymmetry in the Cabibbo-suppressed decay $D^{0} \to K^{-} K^{+}$ is measured using proton-proton collision data, corresponding to an integrated luminosity of 5.…

hep-ex2022★ 2 cited

Study of $B_{c}^{+}$ meson decays to charmonia plus multihadron final states

LHCb Collaboration, R. Aaij, A. S. W. Abdelmotteleb +1058

Four decay modes of the $B_{c}^{+}$ meson into a $J / ψ$ meson and multiple charged kaons or pions are studied using proton-proton collision data, collected with the~LHCb detector at cen…

hep-ex2022★ 3 cited

Amplitude analysis of the $D^{+} \to π^{-} π^{+} π^{+}$ decay and measurement of the $π^{-} π^{+}$ S-wave amplitude

LHCb Collaboration

An amplitude analysis of the $D^{+} \to π^{-} π^{+} π^{+}$ decay is performed with a sample corresponding to $1.5 f b^{- 1}$ of integrated luminosity of $pp$ collisions at a centre-of-mas…

hep-ex2022★ 20 cited

Amplitude analysis of the $Λ_{c}^{+} \to p K^{-} π^{+}$ decay and $Λ_{c}^{+}$ baryon polarization measurement in semileptonic beauty hadron decays

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +999

An amplitude analysis of $Λ_{c}^{+} \to p K^{-} π^{+}$ decays together with a measurement of the $Λ_{c}^{+}$ polarization vector in semileptonic beauty hadron decays is presented. A sample of $4…

hep-ex2022★ 10 cited

Search for the lepton-flavour violating decays $B^{0} \to K^{* 0} μ^{\pm} e^{\mp}$ and $B_{s}^{0} \to ϕ μ^{\pm} e^{\mp}$

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1003

A search for the lepton-flavour violating decays $B^{0} \to K^{* 0} μ^{\pm} e^{\mp}$ and $B_{s}^{0} \to ϕ μ^{\pm} e^{\mp}$ is presented, using proton-proton collision data collected by the LHCb de…

Measurement of Υ production in pp collisions at s​=5 TeV

Search for rare decays of D0 mesons into two muons

Measurement of lepton universality parameters in B+→K+ℓ+ℓ− and B0→K∗0ℓ+ℓ− decays

Test of lepton universality in b→sℓ+ℓ− decays

Amplitude analysis of B0→D0Ds+​π− and B+→D−Ds+​π+ decays

First observation of a doubly charged tetraquark and its neutral partner

J/ψ and D0 production in sNN​​ = 68.5 GeV PbNe collisions

Charmonium production in pNe collisions at sNN​​=68.5 GeV

Open charm production and asymmetry in pNe collisions at sNN​​= 68.5 GeV

First observation of the B+→Ds+​Ds−​K+ decay

Study of the B−→Λc+​Λˉc−​K− decay

Observation of a resonant structure near the Ds+​Ds−​ threshold in the B+→Ds+​Ds−​K+ decay

Measurement of the ratio of branching fractions B(Bc+​→Bs0​π+)/B(Bc+​→J/ψπ+)

Search for the baryon- and lepton-number violating decays B0→pμ− and Bs0​→pμ−

Observation of a J/ψΛ resonance consistent with a strange pentaquark candidate in B−→J/ψΛpˉ​ decays

Measurement of the Λc+​ to D0 production cross-section ratio in peripheral PbPb collisions

Search for the lepton-flavour violating decays B0→K∗0τ±μ∓

Amplitude analysis of the Ds+​→π−π+π+ decay

Measurement of the CKM angle γ with B±→D[K∓π±π±π∓]h± decays using a binned phase-space approach

Measurement of the time-integrated CP asymmetry in D0→K−K+ decays

Study of Bc+​ meson decays to charmonia plus multihadron final states

Amplitude analysis of the D+→π−π+π+ decay and measurement of the π−π+ S-wave amplitude

Amplitude analysis of the Λc+​→pK−π+ decay and Λc+​ baryon polarization measurement in semileptonic beauty hadron decays

Search for the lepton-flavour violating decays B0→K∗0μ±e∓ and Bs0​→ϕμ±e∓

Measurement of $Υ$ production in $pp$ collisions at $s = 5 TeV$

Search for rare decays of $D^{0}$ mesons into two muons

Measurement of lepton universality parameters in $B^{+} \to K^{+} ℓ^{+} ℓ^{-}$ and $B^{0} \to K^{* 0} ℓ^{+} ℓ^{-}$ decays

Test of lepton universality in $b \to s ℓ^{+} ℓ^{-}$ decays

Amplitude analysis of $B^{0} \to D^{0} D_{s}^{+} π^{-}$ and $B^{+} \to D^{-} D_{s}^{+} π^{+}$ decays

$J / ψ$ and $D^{0}$ production in $s_{NN}$ = 68.5 GeV PbNe collisions

Charmonium production in $p$ Ne collisions at $s_{NN} = 68.5$ GeV

Open charm production and asymmetry in $p$ Ne collisions at $s_{NN} =$ 68.5 GeV

First observation of the $B^{+} \to D_{s}^{+} D_{s}^{-} K^{+}$ decay

Study of the $B^{-} \to Λ_{c}^{+} Λ ˉ_{c}^{-} K^{-}$ decay

Observation of a resonant structure near the $D_{s}^{+} D_{s}^{-}$ threshold in the $B^{+} \to D_{s}^{+} D_{s}^{-} K^{+}$ decay

Measurement of the ratio of branching fractions $B (B_{c}^{+} \to B_{s}^{0} π^{+}) / B (B_{c}^{+} \to J / ψ π^{+})$

Search for the baryon- and lepton-number violating decays $B^{0} \to p μ^{-}$ and $B_{s}^{0} \to p μ^{-}$

Observation of a $J / ψ Λ$ resonance consistent with a strange pentaquark candidate in $B^{-} \to J / ψ Λ p ˉ$ decays

Measurement of the $Λ_{c}^{+}$ to $D^{0}$ production cross-section ratio in peripheral PbPb collisions

Search for the lepton-flavour violating decays $B^{0} \to K^{* 0} τ^{\pm} μ^{\mp}$

Amplitude analysis of the $D_{s}^{+} \to π^{-} π^{+} π^{+}$ decay

Measurement of the CKM angle $γ$ with $B^{\pm} \to D [K^{\mp} π^{\pm} π^{\pm} π^{\mp}] h^{\pm}$ decays using a binned phase-space approach

Measurement of the time-integrated $C P$ asymmetry in $D^{0} \to K^{-} K^{+}$ decays

Study of $B_{c}^{+}$ meson decays to charmonia plus multihadron final states

Amplitude analysis of the $D^{+} \to π^{-} π^{+} π^{+}$ decay and measurement of the $π^{-} π^{+}$ S-wave amplitude

Amplitude analysis of the $Λ_{c}^{+} \to p K^{-} π^{+}$ decay and $Λ_{c}^{+}$ baryon polarization measurement in semileptonic beauty hadron decays

Search for the lepton-flavour violating decays $B^{0} \to K^{* 0} μ^{\pm} e^{\mp}$ and $B_{s}^{0} \to ϕ μ^{\pm} e^{\mp}$