Ryan Newcombe

activity

20182024

A^{'} \to μ^{+} μ^{-}

decays

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

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Showing 2023 · hep-exShow all

20 papers · 2 filters

hep-ex2023★ 22 cited

Amplitude analysis of the $B^{0} \to K^{* 0} μ^{+} μ^{-}$ decay

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

An amplitude analysis of the $B^{0} \to K^{* 0} μ^{+} μ^{-}$ decay is presented using a dataset corresponding to an integrated luminosity of $4.7$ fb $^{- 1}$ of $pp$ collision data collecte…

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★ 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★ 4 cited

Curvature-bias corrections using a pseudomass method

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1078

Momentum measurements for very high momentum charged particles, such as muons from electroweak vector boson decays, are particularly susceptible to charge-dependent curvature biase…

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★ 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★ 7 cited

Observation and branching fraction measurement of the decay $Ξ_{b}^{-} \to Λ_{b}^{0} π^{-}$

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

The decay $Ξ_{b}^{-} \to Λ_{b}^{0} π^{-}$ is observed using a proton-proton collision data sample collected at center-of-mass energy $s = 13$ TeV with the LHCb detector, corresponding to a…

hep-ex2023★ 1 cited

Measurements of $C P$ asymmetries and branching fraction ratios of $B^{-}$ decays to two charm mesons

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

The $C P$ asymmetries of seven $B^{-}$ decays to two charm mesons are measured using data corresponding to an integrated luminosity of $9 fb^{- 1}$ of proton-proton collisions c…

hep-ex2023★ 12 cited

Study of charmonium decays to $K_{S}^{0} K π$ in the $B \to (K_{S}^{0} K π) K$ channels

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1049

A study of the $B^{+} \to K_{S}^{0} K^{+} K^{-} π^{+}$ and $B^{+} \to K_{S}^{0} K^{+} K^{+} π^{-}$ decays is performed using proton-proton collisions at center-of-mass energies of 7, 8 and 13 TeV at the LHCb expe…

hep-ex2023★ 10 cited

Precision measurement of $CP$ violation in the penguin-mediated decay $B_{s}^{0} \to ϕϕ$

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1044

A flavor-tagged time-dependent angular analysis of the decay $B_{s}^{0} \to ϕϕ$ is performed using $pp$ collision data collected by the LHCb experiment at $s = 13$ TeV, th…

hep-ex2023

Search for $D^{*} (2007)^{0} \to μ^{+} μ^{-}$ in $B^{-} \to π^{-} μ^{+} μ^{-}$ decays

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

The very rare $D^{*} (2007)^{0} \to μ^{+} μ^{-}$ decay is searched for by analysing $B^{-} \to π^{-} μ^{+} μ^{-}$ decays. The analysis uses a sample of beauty mesons produced in proton-proton collisions…

hep-ex2023★ 3 cited

Observation of the $B^{+} \to J / ψ η^{'} K^{+}$ decay

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1049

The $B^{+} \to J / ψ η^{'} K^{+}$ decay is observed for the first time using proton-proton collision data collected by the LHCb experiment at centre-of-mass energies of 7, 8,…

hep-ex2023★ 4 cited

Search for $CP$ violation in $D_{(s)}^{+} \to K^{-} K^{+} K^{+}$ decays

LHCb collaboration

A search for direct $CP$ violation in the Cabibbo-suppressed decay $D_{s}^{+} \to K^{-} K^{+} K^{+}$ and in the doubly Cabibbo-suppressed decay $D^{+}\rightarrow K^{-}K^{…

hep-ex2023★ 2 cited

Observation of the $B_{s}^{0} \to χ_{c 1} (3872) π^{+} π^{-}$ decay

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1045

The first observation of the $B_{s}^{0} \to (χ_{c 1} (3872) \to J / ψ π^{+} π^{-}) π^{+} π^{-}$ decay is reported using proton-proton collision data, corresponding to int…

hep-ex2023★ 9 cited

Measurement of the $Λ_{b}^{0} \to Λ (1520) μ^{+} μ^{-}$ differential branching fraction

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

The branching fraction of the rare decay $Λ_{b}^{0} \to Λ (1520) μ^{+} μ^{-}$ is measured for the first time, in the squared dimuon mass intervals, $q^{2}$ , excluding the $J / ψ$ and $ψ(2…

hep-ex2023★ 32 cited

Observation of new $Ω_{c}^{0}$ states decaying to the $Ξ_{c}^{+} K^{-}$ final state

LHCb collaboration

Two new excited states, $Ω_{c} (3185)^{0}$ and $Ω_{c} (3327)^{0}$ , are observed in the $Ξ_{c}^{+} K^{-}$ invariant-mass spectrum using proton-proton collision data collected by the LHCb experim…

hep-ex2023★ 8 cited

A study of $C P$ violation in the decays $B^{\pm} \to [K^{+} K^{-} π^{+} π^{-}]_{D} h^{\pm}$ ( $h = K, π$ ) and $B^{\pm} \to [π^{+} π^{-} π^{+} π^{-}]_{D} h^{\pm}$

LHCb collaboration

The first study of $C P$ violation in the decay mode $B^{\pm} \to [K^{+} K^{-} π^{+} π^{-}]_{D} h^{\pm}$ , with $h = K, π$ , is presented, exploiting a data sample of proton-proton collisions collected b…

hep-ex2023★ 5 cited

$Λ_{c}^{+}$ polarimetry using the dominant hadronic mode

LHCb collaboration

The polarimeter vector field for multibody decays of a spin-half baryon is introduced as a generalisation of the baryon asymmetry parameters. Using a recent amplitude analysis of t…

hep-ex2023★ 11 cited

Evidence of a $J / ψ K_{S}^{0}$ structure in $B^{0} \to J / ψ ϕ K_{S}^{0}$ decays

LHCb collaboration

An amplitude analysis of $B^{0} \to J / ψ ϕ K_{S}^{0}$ decays is performed using proton-proton collision data corresponding to an integrated luminosity of 9 $fb^{- 1}$ , collected with t…

Amplitude analysis of the B0→K∗0μ+μ− decay

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

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

Curvature-bias corrections using a pseudomass method

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

A measurement of ΔΓs​

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

Observation and branching fraction measurement of the decay Ξb−​→Λb0​π−

Measurements of CP asymmetries and branching fraction ratios of B− decays to two charm mesons

Study of charmonium decays to KS0​Kπ in the B→(KS0​Kπ)K channels

Precision measurement of CP violation in the penguin-mediated decay Bs0​→ϕϕ

Search for D∗(2007)0→μ+μ− in B−→π−μ+μ− decays

Observation of the B+→J/ψη′K+ decay

Search for CP violation in D(s)+​→K−K+K+ decays

Observation of the Bs0​→χc1​(3872)π+π− decay

Measurement of the Λb0​→Λ(1520)μ+μ− differential branching fraction

Observation of new Ωc0​ states decaying to the Ξc+​K− final state

A study of CP violation in the decays B±→[K+K−π+π−]D​h± (h=K,π) and B±→[π+π−π+π−]D​h±

Λc+​ polarimetry using the dominant hadronic mode

Evidence of a J/ψKS0​ structure in B0→J/ψϕKS0​ decays

Amplitude analysis of the $B^{0} \to K^{* 0} μ^{+} μ^{-}$ decay

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

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

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

Observation and branching fraction measurement of the decay $Ξ_{b}^{-} \to Λ_{b}^{0} π^{-}$

Measurements of $C P$ asymmetries and branching fraction ratios of $B^{-}$ decays to two charm mesons

Study of charmonium decays to $K_{S}^{0} K π$ in the $B \to (K_{S}^{0} K π) K$ channels

Precision measurement of $CP$ violation in the penguin-mediated decay $B_{s}^{0} \to ϕϕ$

Search for $D^{*} (2007)^{0} \to μ^{+} μ^{-}$ in $B^{-} \to π^{-} μ^{+} μ^{-}$ decays

Observation of the $B^{+} \to J / ψ η^{'} K^{+}$ decay

Search for $CP$ violation in $D_{(s)}^{+} \to K^{-} K^{+} K^{+}$ decays

Observation of the $B_{s}^{0} \to χ_{c 1} (3872) π^{+} π^{-}$ decay

Measurement of the $Λ_{b}^{0} \to Λ (1520) μ^{+} μ^{-}$ differential branching fraction

Observation of new $Ω_{c}^{0}$ states decaying to the $Ξ_{c}^{+} K^{-}$ final state

A study of $C P$ violation in the decays $B^{\pm} \to [K^{+} K^{-} π^{+} π^{-}]_{D} h^{\pm}$ ( $h = K, π$ ) and $B^{\pm} \to [π^{+} π^{-} π^{+} π^{-}]_{D} h^{\pm}$

$Λ_{c}^{+}$ polarimetry using the dominant hadronic mode

Evidence of a $J / ψ K_{S}^{0}$ structure in $B^{0} \to J / ψ ϕ K_{S}^{0}$ decays