Ifan Williams

activity

20182023

most citedObservation of a narrow pentaquark state,

P_{c} (4312)^{+}

, and of two-peak structure of the

P_{c} (4450)^{+}

738 citations · 2k across the 50 of their papers we have counts for

collaborators

Showing 2021Show all

10 papers · 1 filter

hep-ex2021★ 2 cited

Observation of the $B^{0} \to D^{* 0} K^{+} π^{-}$ and $B_{s}^{0} \to D^{* 0} K^{-} π^{+}$ decays

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +988

The first observations of $B^{0} \to D^{*} (2007)^{0} K^{+} π^{-}$ and $B_{s}^{0} \to D^{*} (2007)^{0} K^{-} π^{+}$ decays are presented, and their branching…

hep-ex2021★ 23 cited

Measurement of $χ_{c 1} (3872)$ production in proton-proton collisions at $s = 8$ and $13$ TeV

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +997

The production cross-section of the $χ_{c 1} (3872)$ state relative to the $ψ (2 S)$ meson is measured using proton-proton collision data collected with the LHCb experiment at centre-o…

hep-ex2021★ 115 cited

Measurement of the $B_{s}^{0} \to μ^{+} μ^{-}$ decay properties and search for the $B^{0} \to μ^{+} μ^{-}$ and $B_{s}^{0} \to μ^{+} μ^{-} γ$ decays

LHCb collaboration, R. Aaij, C. Abellán Beteta +953

An improved measurement of the decay $B_{s}^{0} \to μ^{+} μ^{-}$ and searches for the decays $B^{0} \to μ^{+} μ^{-}$ and $B_{s}^{0} \to μ^{+} μ^{-} γ$ are performed at the LHCb experiment using data collected in…

hep-ex2021★ 11 cited

Search for the radiative $Ξ_{b}^{-} \to Ξ^{-} γ$ decay

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +986

The first search for the rare radiative decay $Ξ_{b}^{-} \to Ξ^{-} γ$ is performed using data collected by the LHCb experiment in proton-proton collisions at a center-of-mass energy of 1…

hep-ex2021

Measurement of prompt charged-particle production in pp collisions at a centre-of-mass energy of 13 TeV

LHCb collaboration, R. Aaij, C. Abellán Beteta +957

The differential cross-section of prompt inclusive production of long-lived charged particles in proton-proton collisions is measured using a data sample recorded by the LHCb exper…

hep-ex2021★ 44 cited

Observation of excited $Ω_{c}^{0}$ baryons in $Ω_{b}^{-} \to Ξ_{c}^{+} K^{-} π^{-}$ decays

LHCb collaboration, R. Aaij, C. Abellán Beteta +959

The first observation of the $Ω_{b}^{-} \to Ξ_{c}^{+} K^{-} π^{-}$ decay is reported using $pp$ collision data at centre-of-mass energies of 7, 8 and 13\, $TeV$ collected by the LHCb e…

hep-ex2021★ 53 cited

Observation of the mass difference between neutral charm-meson eigenstates

LHCb collaboration, R. Aaij, C. Abellán Beteta +958

A measurement of mixing and $C P$ violation in neutral charm mesons is performed using data reconstructed in proton-proton collisions collected by the LHCb experiment from 2016 to…

hep-ex2021★ 1 cited

First measurement of the $C P$ -violating phase in $B_{s}^{0} \to J / ψ (\to e^{+} e^{-}) ϕ$ decays

LHCb collaboration, R. Aaij, C. Abellán Beteta +954

A flavour-tagged time-dependent angular analysis of $B_{s}^{0} \to J / ψ ϕ$ decays is presented where the $J / ψ$ meson is reconstructed through its decay to an $e^{+} e^{-}$ pair. The analysis u…

hep-ex2021★ 19 cited

Search for $C P$ violation in $Ξ_{b}^{-} \to p K^{-} K^{-}$ decays

LHCb collaboration, R. Aaij, C. Abellán Beteta +956

A search for $C P$ violation in charmless three-body $Ξ_{b}^{-} \to p K^{-} K^{-}$ decays is performed using $pp$ collision data recorded with the LHCb detector, corresponding to integrated…

hep-ex2021★ 34 cited

Precise determination of the B0s-B0sbar oscillation frequency

LHCb collaboration, R. Aaij, C. Abellán Beteta +946

Mesons comprising a beauty quark and a strange quark can oscillate between particle (B0s) and antiparticle (B0s) flavour eigenstates, with a frequency given by the mass difference…

Observation of the B0→D∗0K+π− and Bs0​→D∗0K−π+ decays

Measurement of χc1​(3872) production in proton-proton collisions at s​=8 and 13 TeV

Measurement of the Bs0​→μ+μ− decay properties and search for the B0→μ+μ− and Bs0​→μ+μ−γ decays

Search for the radiative Ξb−​→Ξ−γ decay