D. P. O’Hanlon

activity

20142023

most citedObservation of the doubly charmed baryon

Ξ_{cc}^{++}

523 citations · 8.7k across the 158 of their papers we have counts for

collaborators

Showing 2021Show all

15 papers · 1 filter

hep-ex2021★ 7 cited

Searches for rare $B_{s}^{0}$ and $B^{0}$ decays into four muons

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

Searches for rare $B_{s}^{0}$ and $B^{0}$ decays into four muons are performed using proton-proton collision data recorded by the LHCb experiment, corresponding to an integrated luminosi…

hep-ex2021★ 19 cited

Measurement of the photon polarization in $Λ_{b} \to Λ γ$ decays

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +994

The photon polarization in $b \to s γ$ transitions is measured for the first time in radiative b-baryon decays exploiting the unique spin structure of $Λ_{b} \to Λ γ$ decays. A data s…

hep-ex2021★ 32 cited

Observation of two new excited $Ξ_{b}^{0}$ states decaying to $Λ_{b}^{0} K^{-} π^{+}$

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +995

Two narrow resonant states are observed in the $Λ_{b}^{0} K^{-} π^{+}$ mass spectrum using a data sample of proton-proton collisions at a center-of-mass energy of 13 $TeV$ , collect…

hep-ex2021★ 52 cited

Simultaneous determination of CKM angle $γ$ and charm mixing parameters

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +994

A combination of measurements sensitive to the $C P$ violation angle $γ$ of the Cabibbo-Kobayashi-Maskawa unitarity triangle and to the charm mixing parameters that describe oscilla…

hep-ex2021★ 329 cited

Study of the doubly charmed tetraquark $T_{cc}^{+}$

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +994

An exotic narrow state in the $D^{0} D^{0} π^{+}$ mass spectrum just below the $D^{*+} D^{0}$ mass threshold is studied using a data set corresponding to an integrated luminosity of 9 fb$^{-1…

hep-ex2021★ 5 cited

Updated search for $B_{c}^{+}$ decays to two charm mesons

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +995

A data set corresponding to an integrated luminosity of $9 fb^{- 1}$ of proton-proton collisions collected by the LHCb experiment has been analysed to search for $B_c^+ \to D…

hep-ex2021★ 100 cited

Analysis of neutral $B$ -meson decays into two muons

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

Branching fraction and effective lifetime measurements of the rare 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 reported using proton…

hep-ex2021★ 4 cited

Angular analysis of the rare decay $B_{s}^{0} \to ϕ μ^{+} μ^{-}$

LHCb Collaboration, R. Aaij, A. S. W. Abdelmotteleb +992

An angular analysis of the rare decay $B_{s}^{0} \to ϕ μ^{+} μ^{-}$ is presented, using proton-proton collision data collected by the LHCb experiment at centre-of-mass energies of $7$ ,…

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★ 22 cited

Study of coherent $J / ψ$ production in lead-lead collisions at $s_{N N} = 5 T e V$

R. Aaij, C. Abellán Beteta, T. Ackernley +946

Coherent production of $J / ψ$ mesons is studied in ultraperipheral lead-lead collisions at a nucleon-nucleon centre-of-mass energy of 5 TeV, using a data sample collected by the LHC…

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★ 154 cited

Branching fraction measurements of the rare $B_{s}^{0} \to ϕ μ^{+} μ^{-}$ and $B_{s}^{0} \to f_{2}^{'} (1525) μ^{+} μ^{-}$ decays

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

The branching fraction of the rare $B_{s}^{0} \to ϕ μ^{+} μ^{-}$ decay is measured using data collected by the LHCb experiment at center-of-mass energies of $7$ , $8$ and $13 TeV$ …

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★ 372 cited

Test of lepton universality in beauty-quark decays

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

The Standard Model of particle physics currently provides our best description of fundamental particles and their interactions. The theory predicts that the different charged lepto…

hep-ex2021★ 200 cited

Observation of new resonances decaying to $J / ψ K^{+}$ and $J / ψ ϕ$

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

The first observation of exotic states with a new quark content $c c ˉ u s ˉ$ decaying to the $J / ψ K^{+}$ final state is reported with high significance from an amplitude anal…

Searches for rare Bs0​ and B0 decays into four muons

Measurement of the photon polarization in Λb​→Λγ decays

Observation of two new excited Ξb0​ states decaying to Λb0​K−π+

Simultaneous determination of CKM angle γ and charm mixing parameters

Study of the doubly charmed tetraquark Tcc+​

Updated search for Bc+​ decays to two charm mesons

Analysis of neutral B-meson decays into two muons

Angular analysis of the rare decay Bs0​→ϕμ+μ−

Observation of excited Ωc0​ baryons in Ωb−​→Ξc+​K−π− decays

Study of coherent J/ψ production in lead-lead collisions at sNN​​=5TeV

First measurement of the CP-violating phase in Bs0​→J/ψ(→e+e−)ϕ decays

Branching fraction measurements of the rare Bs0​→ϕμ+μ− and Bs0​→f2′​(1525)μ+μ− decays

Search for CP violation in Ξb−​→pK−K− decays

Test of lepton universality in beauty-quark decays

Observation of new resonances decaying to J/ψK+ and J/ψϕ

Searches for rare $B_{s}^{0}$ and $B^{0}$ decays into four muons

Measurement of the photon polarization in $Λ_{b} \to Λ γ$ decays

Observation of two new excited $Ξ_{b}^{0}$ states decaying to $Λ_{b}^{0} K^{-} π^{+}$

Simultaneous determination of CKM angle $γ$ and charm mixing parameters

Study of the doubly charmed tetraquark $T_{cc}^{+}$

Updated search for $B_{c}^{+}$ decays to two charm mesons

Analysis of neutral $B$ -meson decays into two muons

Angular analysis of the rare decay $B_{s}^{0} \to ϕ μ^{+} μ^{-}$

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

Study of coherent $J / ψ$ production in lead-lead collisions at $s_{N N} = 5 T e V$

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

Branching fraction measurements of the rare $B_{s}^{0} \to ϕ μ^{+} μ^{-}$ and $B_{s}^{0} \to f_{2}^{'} (1525) μ^{+} μ^{-}$ decays

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

Observation of new resonances decaying to $J / ψ K^{+}$ and $J / ψ ϕ$