N. Howarth

activity

20222026

most citedObservation of charge-parity symmetry breaking in baryon decays

47 citations · 432 across the 107 of their papers we have counts for

collaborators

111 papers

hep-ex2026

Model-independent measurement of the transversity amplitudes of the $B^{0} \to K^{* 0} μ^{+} μ^{-}$ decay

LHCb collaboration, R. Aaij, M. Abdelfatah +1154

An analysis of the decay amplitudes of $B^{0} \to K^{* 0} (\to K^{+} π^{-}) μ^{+} μ^{-}$ is presented, using proton-proton collision data recorded by the LHCb experiment at centre-of-mass energie…

hep-ex2026

New measurements of $B_{c}^{+}$ decays into single charm final states

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

Using proton-proton collision data corresponding to an integrated luminosity of $9 fb^{- 1}$ collected by the LHCb experiment, searches are performed for $B_{c}^{+}$ mesons d…

nucl-ex2026

Modification of $Υ$ production in $p$ O and OO collisions at LHCb

LHCb collaboration, R. Aaij, M. Abdelfatah +1161

The production rates of $Υ (2 S)$ and $Υ (3 S)$ mesons relative to that of the $Υ (1 S)$ state are measured in $pp$ , $p$ O, and OO collisions by the LHCb collaboratio…

hep-ex2025

Study of charm mixing and CP violation with $D^{0} \to K^{\pm} π^{\mp} π^{\pm} π^{\mp}$ decays

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1188

A study of charm mixing and CP violation in $D^{0} \to K^{\pm} π^{\mp} π^{\pm} π^{\mp}$ decays is performed using data collected by the LHCb experiment in proton-proton collisions from 2015 to 2…

hep-ex2025

Measurement of the $W \to μ ν_{μ}$ cross-sections as a function of the muon transverse momentum in $pp$ collisions at 5.02 TeV

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1186

The $pp \to W^{\pm} (\to μ^{\pm} ν_{μ}) X$ cross-sections are measured at a proton-proton centre-of-mass energy $s = 5.02$ TeV using a dataset corresponding to an integrated l…

hep-ex2025★ 2 cited

First evidence of $C P$ violation in beauty baryon to charmonium decays

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1178

A study of the difference in the $C P$ asymmetries between $Λ_{b}^{0} \to J / ψ p π^{-}$ and $Λ_{b}^{0} \to J / ψ p K^{-}$ decays, $Δ A_{C P}$ , is performed using proton-prot…

hep-ex2025★ 2 cited

Observation of $B_{c}^{+} \to D h^{+} h^{-}$ decays

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1185

Searches are presented for $B_{c}^{+} \to D h^{+} h^{-}$ decays, where $D$ is a charmed meson and $h^{\pm}$ is a charged pion or kaon, using $pp$ collision data collected by the LHCb e…

hep-ex2025★ 1 cited

A model-independent measurement of the CKM angle $γ$ in the decays $B^{\pm} \to [K^{+} K^{-} π^{+} π^{-}]_{D} h^{\pm}$ and $B^{\pm} \to [π^{+} π^{-} π^{+} π^{-}]_{D} h^{\pm}$ ( $h = K, π$ )

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1164

A model-independent determination of the CKM angle $γ$ is presented, using the $B^{\pm} \to [K^{+} K^{-} π^{+} π^{-}]_{D} h^{\pm}$ and $B^{\pm} \to [π^{+} π^{-} π^{+} π^{-}]_{D} h^{\pm}$ decays, with $h = K, π$ . This meas…

hep-ex2025

Amplitude analysis of $B^{0} \to η_{c} (1 S) K^{+} π^{-}$ decays

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1185

An amplitude analysis of the $B^{0} \to η_{c} (1 S) K^{+} π^{-}$ decays with $η_{c} (1 S) \to p p ˉ$ is performed using a sample corresponding to an integrated luminosity of 9$\…

hep-ex2025

Inclusive $B$ -meson flavour-tagging algorithm at LHCb

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1179

A new algorithm is developed to identify the flavour of neutral $B$ mesons at production in $pp$ collisions by utilising all tracks from the hadronisation process. The algorithm is…

hep-ex2025

Deuteron identification via time of flight with LHCb

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1183

It is shown that the timing capabilities of the LHCb detector operated during the LHC Run 2 can be used to identify light ion particles with momenta of a few GeV/ $c$ . This is achie…

nucl-ex2025★ 3 cited

Measurement of transverse $Λ$ and $Λ ˉ$ hyperon polarization in $p$ Pb collisions at $s_{N N} = 5.02$ TeV

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1131

The transverse polarization of $Λ$ and $Λ ˉ$ hyperons is measured in $p$ Pb collisions collected by the LHCb experiment at a nucleon-nucleon center-of-mass energy of $5.02$ TeV. T…

hep-ex2025★ 1 cited

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

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1128

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

hep-ex2025

Search for resonances decaying to photon pairs with masses between 4.9 and 19.4 GeV

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1144

A search is presented for axion-like particles (ALPs) with masses between 4.9 and 19.4 GeV decaying to a pair of photons, using proton-proton collisions collected with the LHCb det…

hep-ex2025★ 1 cited

Search for the decay $B^{0} \to ϕϕ$

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1160

A search for the decay $B^{0} \to ϕϕ$ is made using $pp$ collision data collected with the LHCb detector at centre-of-mass energies of 7, 8 and 13 TeV, corresponding to an in…

hep-ex2025

Precision measurement of the $Ξ_{b}^{0}$ baryon lifetime

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1176

A sample of $pp$ collision data, corresponding to an integrated luminosity of 5.4 fb $^{- 1}$ and collected by the LHCb experiment during LHC Run 2, is used to measure the ratio of t…

hep-ex2025★ 2 cited

First observation of the $Λ_{b}^{0} \to Λ_{c}^{+} D_{s}^{-} K^{+} K^{-}$ decay and search for pentaquarks in the $Λ_{c}^{+} D_{s}^{-}$ system

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1176

The $Λ_{b}^{0} \to Λ_{c}^{+} D_{s}^{-} K^{+} K^{-}$ decay is observed for the first time using the data sample from proton-proton collisions recorded at a center-o…

hep-ex2025★ 4 cited

Observation of orbitally excited $B_{c}^{+}$ states

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1155

The observation of a wide peaking structure in the $B_{c}^{+} γ$ mass spectrum is reported using proton-proton collision data collected by the LHCb detector at center-of-mass energ…

hep-ex2025★ 2 cited

Study of $B_{c} (1 P)^{+}$ states in the $B_{c}^{+} γ$ mass spectrum

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1155

The study of a wide peaking structure in the $B_{c}^{+} γ$ mass spectrum is reported using a data sample of proton-proton collisions collected by the LHCb detector at center-of-mas…

hep-ex2025

Updated measurement of $C P$ violation and polarisation in $B_{s}^{0} \to J / ψ K^{*} (892)^{0}$ decays

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1169

A time-integrated angular analysis of the decay $B_{s}^{0} \to J / ψ K^{*} (892)^{0}$ , with $J / ψ \to μ^{+} μ^{-}$ and $\overline{K}{}^{*}\kern-1pt(892)…

hep-ex2025

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

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1131

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

hep-ex2025★ 2 cited

Measurement of the $Ω_{c}^{0}$ and $Ξ_{c}^{0}$ baryon lifetimes using hadronic $b$ -baryon decays

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1143

The lifetimes of the $Ω_{c}^{0}$ and $Ξ_{c}^{0}$ baryons are measured using a $pp$ collision dataset collected by the LHCb experiment, corresponding to an integrated luminosity of $9~\rm{f…

nucl-ex2025★ 1 cited

Measurement of $ψ (2 S)$ to $J / ψ$ cross-section ratio as function of multiplicity in $p$ Pb collisions at $s_{N N} = 8.16$ TeV

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1139

The production ratio of $ψ (2 S)$ to $J / ψ$ charmonium states is presented as a function of multiplicity in proton-lead collisions at a centre-of-mass energy of $s_{N N} = 8.16$ T…

nucl-ex2025

Coherent photoproduction of $ρ^{0}, ω$ and excited vector mesons in ultraperipheral PbPb collisions

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

The invariant-mass distribution for the coherent photoproduction of dipions in ultraperipheral PbPb collisions is measured using data, corresponding to an integrated luminosity of…

Model-independent measurement of the transversity amplitudes of the B0→K∗0μ+μ− decay

New measurements of Bc+​ decays into single charm final states

Modification of Υ production in pO and OO collisions at LHCb

Study of charm mixing and CP violation with D0→K±π∓π±π∓ decays

Measurement of the W→μνμ​ cross-sections as a function of the muon transverse momentum in pp collisions at 5.02 TeV

First evidence of CP violation in beauty baryon to charmonium decays

Observation of Bc+​→Dh+h− decays

A model-independent measurement of the CKM angle γ in the decays B±→[K+K−π+π−]D​h± and B±→[π+π−π+π−]D​h± (h=K,π)

Amplitude analysis of B0→ηc​(1S)K+π− decays

Inclusive B-meson flavour-tagging algorithm at LHCb

Deuteron identification via time of flight with LHCb

Measurement of transverse Λ and Λˉ hyperon polarization in pPb collisions at sNN​​=5.02 TeV

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

Search for resonances decaying to photon pairs with masses between 4.9 and 19.4 GeV

Search for the decay B0→ϕϕ

Precision measurement of the Ξb0​ baryon lifetime

First observation of the Λb0​→Λc+​Ds−​K+K− decay and search for pentaquarks in the Λc+​Ds−​ system

Observation of orbitally excited Bc+​ states

Study of Bc​(1P)+ states in the Bc+​γ mass spectrum

Updated measurement of CP violation and polarisation in Bs0​→J/ψK∗(892)0 decays

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

Measurement of the Ωc0​ and Ξc0​ baryon lifetimes using hadronic b-baryon decays

Measurement of ψ(2S) to J/ψ cross-section ratio as function of multiplicity in pPb collisions atsNN​​=8.16 TeV

Coherent photoproduction of ρ0,ω and excited vector mesons in ultraperipheral PbPb collisions

Model-independent measurement of the transversity amplitudes of the $B^{0} \to K^{* 0} μ^{+} μ^{-}$ decay

New measurements of $B_{c}^{+}$ decays into single charm final states

Modification of $Υ$ production in $p$ O and OO collisions at LHCb

Study of charm mixing and CP violation with $D^{0} \to K^{\pm} π^{\mp} π^{\pm} π^{\mp}$ decays

Measurement of the $W \to μ ν_{μ}$ cross-sections as a function of the muon transverse momentum in $pp$ collisions at 5.02 TeV

First evidence of $C P$ violation in beauty baryon to charmonium decays

Observation of $B_{c}^{+} \to D h^{+} h^{-}$ decays

A model-independent measurement of the CKM angle $γ$ in the decays $B^{\pm} \to [K^{+} K^{-} π^{+} π^{-}]_{D} h^{\pm}$ and $B^{\pm} \to [π^{+} π^{-} π^{+} π^{-}]_{D} h^{\pm}$ ( $h = K, π$ )

Amplitude analysis of $B^{0} \to η_{c} (1 S) K^{+} π^{-}$ decays

Inclusive $B$ -meson flavour-tagging algorithm at LHCb

Measurement of transverse $Λ$ and $Λ ˉ$ hyperon polarization in $p$ Pb collisions at $s_{N N} = 5.02$ TeV

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

Search for the decay $B^{0} \to ϕϕ$

Precision measurement of the $Ξ_{b}^{0}$ baryon lifetime

First observation of the $Λ_{b}^{0} \to Λ_{c}^{+} D_{s}^{-} K^{+} K^{-}$ decay and search for pentaquarks in the $Λ_{c}^{+} D_{s}^{-}$ system

Observation of orbitally excited $B_{c}^{+}$ states

Study of $B_{c} (1 P)^{+}$ states in the $B_{c}^{+} γ$ mass spectrum

Updated measurement of $C P$ violation and polarisation in $B_{s}^{0} \to J / ψ K^{*} (892)^{0}$ decays

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

Measurement of the $Ω_{c}^{0}$ and $Ξ_{c}^{0}$ baryon lifetimes using hadronic $b$ -baryon decays

Measurement of $ψ (2 S)$ to $J / ψ$ cross-section ratio as function of multiplicity in $p$ Pb collisions at $s_{N N} = 8.16$ TeV

Coherent photoproduction of $ρ^{0}, ω$ and excited vector mesons in ultraperipheral PbPb collisions